SCIENTIFIC ABSTRACT WICHTERLE, O. - WIDAJ, J.

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• Collection: Scientific Abstracts
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• Document Release Date: March 20, 2001
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• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

lr-~~.jntry : Czeeboslovakia
: High, MOlecular Chemistry
48-345
::)u r,
W"ch-terles 0.; Zelinka? J.
Copolymeriz-alion of Different Vinylidene Halides
Gri!,~~ P-ib. : Collect. czechogi. chem. couniin.
23, No 9, 180(-1809
:See Khldiim, 1958, No 17, 59749.

I'W
w:-
J.
Di
Str:
'
'

iiolymer ii ra cat -YAt[6u*.,
dl
6~aii-oaniii
a
olMill D
Urn and 0. Wichterle (Tech. UnLv., Prasuej. -J.- Polywr
Wir -The soln. polymervation of, Me -
29
-
,
- W compds; Mated to a polyiner chain vdth the no.:
acrylate

yme~atlon p '14--has b~eniniiesfl
&V
degie6 po
-Model.co
A,
2.4-pentanedic~arb6xjrlate.'aiid tri-Me 2,4,6-hip etri
tan ~ar
'
-
-boxylate to preserve the structiral analogy with thcpolymei7l*~

Chi
Prepn. of model substance3
and polymera'ation,and
,

vr'E,. d
mot
-tn. are cutlined.~ Results'show that the cWu!
tramfer eorist. decreases from P. -** 1 to P - 2i ass
uming that
samewith the hisherml as *ith trimer.

'CZECHOSLOVAKTA High ~~91(mular -.Chemiptry.
.)q, No. 18045
Abs Jour Ref zb= Khimiya, ito 5, igr
Author :'V1ichtA71,Y 0.; Kralicek, J.; Sebande, J.
: Rat-gaven
List
Title :Anionic Polymerization of Caprolactam 6. 111. Nov
Catalysts far Anionic Polymerization of Caprolactam 6
Orig Pub :Chem. listy., 1958, 52, No 4, 636-639
Abstract ;The alkaline -catalytic polynerization, of caprolactam 6
(1) is caused by any compouril which may convert I into
an anim of the -CO-N-type. These compounds nay be

High Molecular Chemistry
CZECHOSWVAKIA
Abs Jour Ref 7.hvx RhUdya., No 5,, 1959, 11o. l8o45
catalyst must dissolve In the molten I. The catalyst
activity of compound of the first group does not depend
upon alkalinity of the anion.. formed In the decarboxylation
process,, but depends only on the rate of decarboxylation.
For catalyate of the B-,GH2-,COOX type it incroases in the
order of f-C 6 -011o Certain acids the salts of which
5ff5('COOR
are easily decarboxylated, are not effective as catalysts.
To these belong acid salts containing halogens., S, or the
Un- -Vvorn (botassium othylxantogemte, sodluzz dimethyl-

CZECROSLOVAIM / High Moleoular Chemistry
Abs Jour Ref Zhur Khimlya.. No 5., 1959, No. 18045
The following data. were obtained (yield of polycaprolacuam.
in reaction time in ndnutes., temperatiwe): cirziamic. acid
Ne 78-01 100- 2600; sodium phonylacetate - 89.5%, 130,.
2500; potassium carbetoxyacetate - 88o7, 5, 2600 or 91-9,
7, 2200; sodium malonate - 78.2., 45, 2600; potassium
mcn- thyloxylate - 8,5.0y 51 2500; potassium pbanyl-
carbaminate - 86.o. 10J. 2500; sodium Palt of 11-carbo:,y-
caprolactam - 89o5) 51 2500; Na-salt of mmoethylcarboniz
acid - 84.9, No, A30 or 67-0., 10) 2200 or 91-3, 60 2200;
Na-salt mondbutylearbonic acid - 88-5o 5, 26oo,. EN '-
=n A qn P600- TcrWO - 74-,i- ri- 2qoO- NaN- - 68.c). 190.

CZECHOSLOVAKIA / High Molecular Chemistryl
Abs Jour Ref,Zhur Rhimiya No 5., 1959, No. 18045
Cont'd
- 1000. Insolub".o
of approx 1% in the molten I at 80
are: Ila-salt of mononothylcarbonic acid and Na-salt of
malonic acid. The solubility of salts of acid esters of
the carbonic acid increases with the increase of alkyl
chain. Parts'I and II were sovered by the Ref Zbur -
Khimiya, 1956, 546789 65167. -- J. Plesek

cowntr~ czenhoslovakia
!U91i moleoular Gh&aistry
Abs. Jour IAofftat Zhur--j2%im,, No lit' 1959 41213
Author Wichterle 0. 1 Kolinsky, M. , and mft_re!,:, M.
Inistitut. I Tio~giv a ~n
Title Npeudence of the Rate of Polymerization of Ise-
butylene on the Acidity of the Catalynt. 11
Catalysis by the Binary Systems BF~-H20 and ~804-
Or:~~ Prub. Cbem LiStY, 52, so,6, lo4g-1051 (1958)
Abstract The authors have invest-igated the rate,of-polymeri-
zation of isobutylene, catalyzed by the strongly
acid binary. syatems BF3-1~0 and HOS04-F20 in the
;T-,n,nptt acidity function ranze Rm = 7-10. The

Country : Chechosloveki&
Catagory : High Molecular GIIm%Istz7
Abe. Jour Reforat Zhur-nlu,, No 11, 1959 41213
Author
inst itut,
Titlo
Ori,;S Pub.
Abstract The dependence between the logarithm,..of Ihe rAte
constant -And the-acidity function is linear, which
tact confirms the protonic mechanism postulated
for the catalysi;a. The reaction dependa,very
Ii.ttle on the temperature and

CZ] EVS-52-11-8/30
m
, P-
0., gittlmr, 1. &YA Cofell
ra--)~quilibriun in Alkaline 201YOOrlsatIon Of
test Studiuz rovaovdby alkalicki polyzeracs
;tacuV
' 195s, vol 52, Or 11, Pp 2073 - 2080
" List
~Vakia
5
-oncerns the determination Of the equilibrium
3, and the average degree of polymorlostion Of
6-caprolactaste, prepared by aliceline catalyst%-
d d
egree
rature dopandence of the conversion an
rifiation was So Wall an their
a on amount amd type or Qsta~st- On the wholT.,
have been published or, %be a k%linz polyzerizatl an
deals in the moist with A
actam. TJxis pap:r
.0 study of thin I ali polymeiiiation, mainly
k
"
Adustrial utilisaZion.
point of view of its 1
netics of polynerisetlOn shortly after %he Start
ctiOn. Allsa?crto so to-- on the alkAlifte
tion of caprolactatm stress the need to exclude
::
~Idly from the system but no author bAs =ad* a
02 O-Uapro'Lactato
examinition of tile influence of water on the
.1saline paZymarjoation.
- Substances Useds The 6-caprolaCtom used was
tnr*S rDCXYQLAL11SAtionJ Of the technical
x acetone and tro
t4iopheze-froe bantams. It
lirat of all, at C and 12 mm Hg for 24 hr&,
;,
am for 44B hours. The dried material was.
desiccator over KOH. Before weighing out it
I at 2-5 = overnight.
Learbonats was prepared by precipitating oldium
-
-

rt
M
G
6- is
glut a in absolute alcohol by tho passage
I precipitate, filtered aft, was dried for
s at 2-5 mot over P205In a desiccator.
I.- t to was prepared by the neutralization
:11-TM .1 she. purified by cryata2lizing from
'bantams and Ithylalcatcl and, after. drying,
,or P205, Both catalysts were ro-dried JZ
32 mm for 12-16 hours at ordinary temperatures.
101 1~as ?btalmod by '." distillations at the
t with time dust and with bariuz carbonate.
on. The ca talyst was weighed into the
r1od Ampoule of the polysteriastion apparatus
y Kralico~z &zA Saboada Oaf 14 - "Reports of
lonal SYMPO siur on "crar.-lacular Chemistry-,
commur.Loation Sr 151) with &A accuracy Of
to zhia was added the caprolactam with an
0.01 6 in 54ch quamtities as to give the
'glyst concentration. After setting UP th6
4 the 40.11" off or tto wolghina tube, the
a dried at I-) ast &= at
urs im a stream air dry air. After the sealing
owar capillary and the nolutiOA Of the caXalyat
I atirriag in an stmospbgre or lomp nitrogen
n a water bath at 80-90 C, the apparatus, with
;Uxed above the murface of the fuBiOm mixture, was

arts In a salt bath for
th the lower ampoule
lap
and temperature. the experiments with
on time above six hours, the Ampoule was first
hours (according to the speed of decomposition

Drium in Alkaline 201,Ymerisation, of b-Caprolact=
telyst) so that a largerp&rt or gaseous products
In the polynerizat ons in the r..,eaenc* of
:11%t.lyats were weighed with a= accLLrax--S or
in thin tubes and following %he solution of the
th: tub a ampoule =11 tube and
was Placed in th
,,r d1ately, scaled.
tion of the Dej~zee of Conyersion: --be degree at
~n waacetermined by tze 1-jeldiEr-netb&d in the
finely SmurLd polymeric materials fr= %he lower
the polymer pliag.
ktion of the jLveraF* bec:rea of ?*I
rizas or the polymer were extraczep V-Malffiez
3 with water, fer 16 hours. 6fter Oxt-zact-toi% the
is dried for 36 hours at 50 C az%d IC-15 cm. The
I and dried polymer was weighed into 25 va. valu-
laska in amounts of about O.J. g, tri"resol (about
was added and dlesolTed wxzli ahakirg (If-24 hougs).
saolviar, the solution was equillbrIx-ted at 25 C
. Tilled up to the mark with tricreftal.
ric measurement was carried out in am Ubbelolide
ater with capillary Ir 11. The solution of the
U- , "r, L,C-r,e-s 0 V ---fil-te'em -t=ugz a =Z"-`*-
Itar 6 nt,, a rear-ramonts
rrin Ou at CV2 C. The result van taken
a ave . . . f fii; consecutive readings which did
Ter more t .2a from each other- T!~* internal
0 t 0 a ution, was qklctxlat*d Trost One
t;( r t the Xtr
~M$At 8400 0 olAtion equatior-
~d for ricreso y Rybtwntsef
0.67 - a
I and c is the cOAC*=trA%iQA Of thR
lutioA). This equation -'& vOll suited
r .a
.1. c at the degree Of P*lYm9ri"t-1A= encountered
me experiments. The t&verage degr," Or polymerizatlam
2oulated frosm the L. ermal. Tiff.-Onity according to
ustion ; - 92c"),.-61 of 6-capsolact~
G: The course of caprolactaz 201y=43ation, was
~ed at 160, 180, 200, 220, 240 and 260 C and with
ethyl carbonate eqnce:Ltration of 0.~/5 :mol %; fu,~,
at 0-3. 0-5 and 2-0 =1 % were
t 2c4oOn6aCntzaltniounoaizzogfaodiu-- ;!2arrjO4etsitq ~,a ,
~
Ogst concentration was 0.3'17 =1 V &=-' A t*APOrvt,-;
C. All POlYm0ris&t1-Qcz had* fr= %t* standpoint or
of conversion, the a=& ck=acter a-d as an axe .10
ursa Of Various poly=erlmaticas sr. digrarem% tomper,
an.- zat--!-~zt are givez ~Fjgurq 1).
it holds*botween the logarithm or tZ* 1)4rloa reqL~~6,4
affish equilibrium and tezparature 0"k-O 3) and it
n4ithat with, pb&Aylacstate the pa-lynexinatio.
at 411Y Slower than wl-b Othylc&rbo=A*.e. The fjri
01 polvaeriastion 1.6 temperature djertz4ont in &
.,.,1.r . ho equ%11,brju~ co.,er.-~a .. .... tho u9t
"e, 'On of the maltim& poin, there :is no Ouch sharp
Sl,:,
ure 6) and further it (P) Is a funotion or
as w1th the polj=eridation v-.t--i sodium
The dearte Of POlymarleatior; which in fina,12,

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=BCH/8-52-11-8/30
um in Alkaline Folymerisation Of 6-caprolactam
results, it is possible to conclude that the
ater leads to a slowing down of alkaline
n (the reaction is longer than hydrolytic
n) probably not only as a result of the
9 a definite portion of the catalytt but also
f the effect of other factors; in the molar
or content over cataLlyst content, perhaps
lymerisation results. The changes in degree
,Uon are, of course, small because the deg"o
.tion. is, in this case, basically determined
~ or added water which as o. result of sapoul-
,oducea irreversible end groups into the
z this it is to be seen that the polymerisation
-ota.rded but the course of the degr * of I I
,n Is alterad. With amounts of wat:r higher
x, hydrolytic polymerinstlon occurs and tb-'s
the excess of water. Water is utilioad in
;atlon of the lactam which proceeds until the
ir to catalyst reaches the ratio of l%l.
figures 2 tables and 21 references, of
ech, I Aoviet and 2 Polish, 1 Japanese,
I Zngliab.
tor vysokomolekula~rnlch latek~ '&okosiovenaka
Is v9d, Praha. a Itatedra technologie plastiQkjr-h
Vy4oki fikola chemicko-technologickA. Praha
1,tory for HiLh Molecular Weight Substances,
slovak Ac.3c. Frague end Department for the
logy of~ Plastic materials, Faculty or chemical
~~cal.uni rsity, Prague)
"Fop

C; A T Z G 0 RY
ABS. JOUR.
imST
r ITL.~;j
ORJC.~. ?UB.
ABSTRACT
AT 866.51
1959,
Grc-gOrl V.
AdditiOn D~cnes tc
cmapounds.
r
-01,1p echo2l - Cy. m. ins I
- ct. C7
NO
m
se e Azym-I 1 81

I BOOK EVWXTATION SOV/49311
,un on moscromolocular chemistry. Moscow.
auno po makromolakulyartzoy khIAI.I SSSR.
ya 1960 g.; doklatdy I avtorareraty.
ternational Symposium an Kac,-=Olecular
:
poncow, June 14-3.8, 1960; Papers and
III. [Roscow, Izd-vo AN SSSR, 1960)
Aos printed.
rhe internation1 Union of Pure and ApplIed
onion an Xacromaolocular Chemigstr7.
La Intandid for chemists Interemud In poll-
3naandthe my nthesIa of bigh a oIecular
:ot:Lon III of a mtltivolu=e work contain-
ronoolocular chemistry. " ,he art-1cles in
the kinetics of polymerization -sections.
ipecial-purpose polymers, o.g_ lqn ex-
siconductor materials, etc., methods of cat-
%tion reactions, properties and chemical
Lgh molecular materials, and the offecta of
~i polrm6rization and the degradation of
apounda. No personalities are mentioned.
Collow the articles.
_EMM&Ak2x' and S: .46~~ov
r Formic Acid and _Fo_r_=-a-t-e_3_o_n--Me
bons and Hydrocarbon Polymers 164
P1. YAnny5kly (USSR). study or the
a and Organoolemental Compounds on
on of Polyvinyl Chloride 3.12
t1tr, and P. 6efelin (Czechoslovakia).
-L;aprolacta=_a_3__&7Aeiu2t or Ex-
an Amide Bonds 3s0
A. ~snd M. J'elfp. . I
Ldual Catalyst In Polydizethyfa--lozans;
tra.11tation on the Theruml StabIll-ty of
and
,*adation or PO-'yq3ter3. Study of De-
)r Different Types of Linear Polyesters 405
Iny-lenym L. 1. Golutenkov
Lotovska a, an
. ~za Of
~9 on gone Polymeric Mrrials 414
A-XUZ=MAk1Z (USSR). Investigation
:nh~Lbitora of Rubber 03Mdation at Vari-
42.
Md Ying Wen-k-ang (USSR). Mochan.-son Or
of Benzene Rings During the Radio-
A. Andrianoy (USSR). on the 97dro-
We-TRZ03-Ti-nirmers With Inorgan-So
440 -XS-
Penakaya, and 0. 1. Vc~kova (USSR).
?,TffT-0-riA-_ no anT_n`c"dcPOl7mtr1zA-
zing or starch solutions 334
r. AykhcdzhAvev- and U__L-jgav
of Cal , _(USIR).
PropertLes lul ne by Grafting 344

r33
HE
d t: UT 08 sm~
.3n - -a 8A! Td Id
44 A
Is
LJI n 0. a
-d Is
.4 0
P.1
9193 fi 1 4's
is
rA

M.;WIGHTERLS, O.;LIM, D.
Intra-cameral lenses made of hydrocolloidal acrylates. Gesk. ofth.
16 no.2:154-158 Mr 160
L.N. ocni klinika KU v Praze, prednosta akademik 11trz, GSAV Ustav
makromolekalirni chenie. reditel akademik Vichterle.
(Lism )
(ACRYLIC RMINS)

VIKIITMW.[Wichterla], 0,,. EKS14ER [Exner], 0.
Problem of the synthesis of polypeptides bv means of reaction of
Amides with alcoholates. Coll Cz Chem 25 no.5tI372- 160.
1376 My
1. Institut makromolekulyarnoy khiml-io Chakhoslovatskaya,
Akadeimiya nauk,. Praga.

CF&EUN., F.; CHKELIRp M.; WICHTERI , 0.
Cryetallization of 'poly-6--caprolactam. CoU Gz Chem 25 no. 5:
1267-1274 Mv 160.
1. Institut fur makro molelalla a Chemis, Tachechoslowakische
Akademie der Wissenschaften, Prag und Institut fur Plwte,
Technische Hochachule fur Ghemie, Frag.

161
169
5/081/62/000/001/067/067
21119/11101
AUTHORS:
Wichterle, 0,.
Cefelin, P., Sittler, E.,
TITLEt
Production Of mixed polyamides frow~amidinea
nal. Khimiya, uo. 11 1
962, 574, abstract
PERIODICALs Referativnyy zhur
1R52 (Collect. Czechosl. Ch~,m* Communs, v. 25, no. 10, 1960,;:
.2522 - 2529)
TEXT: Polyamides from three components of regular atructure, were obtained
ating (in N' atmosphere equimolar amounts of the following diamidines
by he
2
Pnd dicarboxylie acidst N,Nt-di--r2l-(11-azacycloheptenyl.)I-ethylene---

0
31081162100010 1/067/067
Production of mixed B119/B101
other polyamides (except those with IV) form brittle fibers. Model reac-1
tions viere conducted with monoamidines and monocarboxylic acids. When -,40~
heating equimolar amounts of.2-methyl-amino-azacyclohept8ne and butyric
acid with slowly increasing temperature (from 150 to 200 0 during 5 hr,
in N Iatmosphere), a product was obtained with a melting point of 177
2
1780C at 20 mm Hg, whose composition was similar to that of 6-butyramino-
N-methyl caproamide. The reaction of equimolar amounts of 2-phenyl-aia-
0
i., cycloheptene and benzoic acid (220 C, 3 hr, in N 2 atmosphere) yielded a
product whose structure corresponded to that of 6-benzoylamino-N-phenyl
0
nrisms with melting point 162 --163 C (from a benzine-benzenel

DREIFM,M. i -SM3RT,T,,,LIM,D.; WICHTERIX,O.
Tolerance of orbital implants mRde of hydrocolloid. acrylate.
Sbotn. lek. 62 no.7-8:212-218 ji 16o
1. H. ocni kliniks fakulty vaeobecneho lekarstvi University
MqLrlovy x Praze, prednosta akademik Jaromir Kurz; ~Ysoka akola
chamicko-tachnologicka v Praze, akade'nik Otto Wicht erle a dr.
inz,,D. Lim Vyvojove a vyzkumne stredisko n.p. Dental, inz.
Tomas Herben.
(WE ARTIFICIAL)
(AGRYLIG-FMM)

23570
Z/009/61/000 /007/004/004
E112/E133
AUTHORS: Kr9l1ce'k, Jaroslav; S"ebenda, Jan; Zadik, Zdenek; and
Wichterle, Oto
TITLE: Alkaline polymerization of c-capro-lactam. V.
Alkaline polymerization of c-caprolactam for the
production of large molded objects from high-molecular
poly-6-capramides
PERIODICAL: Chemick3F i~rAmysl, 1961. NO-79 PP. 377-381
TEXT% Caprolactam polys Ierises in presence of the usual
proton-donating catalysts at temperatures above the melting point
of the Polymer. Internal stresses may therefore develop in

23570
z/oog/61/000/007/004/004
Alkaline polymerization of s . ..... E112/E135
polymerization rate to such an extent that it proceeds already at
temperatures-well below the melting point of the polyamide.
Polymerization can therefore lead to a polymer in the solid state,,,
and difficulties &rising out of changes of density during
crystallization (internal stresses) can be mitigated, if not
entirely eliminated. During polymerization of e-caprolactam,
28 cal/S Are liberated, corresponding to a temperature increase-of
50 OC In an adiabatically conducted process. Thus, in order not
to exceed the melting point of the resulting polyamide, polymer!-
Mation should be initiated below 160 OC, an otherwise a polymer
- - - - - - - - - - - - - - - - 1__A_

23570
Z/009/62/000/007/004/004
Alkaline polymerisation of c. ..... E112/E13.5
1) a commercial product of Czechos2ovak origin, purified and freed
of moisture by distilling off in vacuo 10% of the original charge
(the distillation residue was found of sufficient,purity for
further experiments); 2) caprolactam crystallised from water;
3) capro2actam crystallised from benzene. N-acetyl-c-caprolactam
was prepared according to the method of R.E. Benson and
T.L.-Cairns (J. Am. Chem. Soc., 70, 211-5 (1948). Sodium salt of
caprolactam was obtained by adding, in an inert atmosphere and
protected from moisture, a solution of sodium methylate in
anhydrous methy2'alcohol to s-capro2actam. Polymerisation
experiments were undertaken with solutions of the sodium salt of
. .. -1- v---- A-4-41- --- --

23570
z/oog/61/000/007/004/004
Alkaline polymerisation of e. ..... E112/EI35
switched off as soon as the temperature of the reaction mixture
rose by 50 OC. Results: beat products were obtained with
caprolactam crystallised from water, but properties of polymer
from technical caprolactam were of sufficient standard Lo warrant
exclusive use in further trials. The effect of the initial
polymerisation temperature on polymerization rate was studied and
results are summarised by graphs. Equilibrium is reached after
10-35 m�nq and rate of polymerisation increases with increase of
temperature. Graphs are given for the polymerisation of capro-
lactam with 0.3 mole % sodium-caprolactam + 0.3 mole % N-acetyl-
Rate of reaction was very strongly affected by the

23570
Z/009/61/000/007/004/004
Alkaline polymerisation of g:- E112/EI35
centre and.peripheral parts of the block showed almost identical
degrees of polymerisation and contents of monomer. Removal of the
polymer from the mold did not present difficulties (owing to
'&m1trikation. arter UOUJIng, by -bout 2-3%)- Experlmental blocks
of d-.Lame+-er-s ovek 20 dM and W~jgjjjng ~ IS& W?-- ff-F-L--d' -IIAS
bearings and cogwheels. The new method is protected by a number
of Czechoslovak patents.
There are-8 fXgures, 3 tables and 12 references: Czech,
(Including citation of patents) I Russian, I German,) I Dutch
(patent) and 2 English, which read an follows-,
Ref.7: A.B. Meggy, J.Chem.Soc., 796 (1953).
I--- - - -- -- -- - -q_

.-.-4ICHTERLE, 0.; LIM, D.; DREIFUS, M.
On the problem of contact lenses. Ceek.ofth.17 no.1:70-75
j& 61.
1. H. ocni kliuikit ICU v Praze, prednosta akademik J. Kurz
GSAV, Ustav makromolekularni chemie, reditel akaderAk Wichterle.
(COPTACT LENSES)

. . . . . . . . . . . .
WICHTFJWP 0.; STEPEK, J.; BRA.TKO, V.
Laboratory method of obtaining vinyl estere In splitting aoetals
under reduced pressure. Coll Cz Chem 26 no.4!1099-1104 Ap 161.
1. Inotitut fur Plaste,Technische Hachaebule far Chimie, Prag.
(Vinyl alcohol) (Acetal)

T- fZ L e
SUMAIME9 Given Names
Countr7s Czechoslovakia
[not gi:vej
Institute of 1-%-Mww1%cu1ar-Cbwdstrr, Czechoslovak Acadeqr
of Sciences (Lwtitut fuer makromolskulaie Chemie, Tschecho-
slowkisohe Akademis der W1s~*m*MfUn);# PKrus
JIIIF41~~19, OdUction of fteahoolonk Ohe?doal 00=Mications,
Vol Z6, No 11, November 1961, PP 2897-29,09-
Degmfttion of Pay-6-Capro2actam by R~ n.

SORM, Frantisek, akademik; MASTOVSKY, Otakar, KASPAR Jan; SIRACKY, Andrej;'
V44 Josef; ~ACHOVAL, Ladislav; RASKA, Karel; BLASKOVIC,'Dionyz,
Fordinw,
akademik; LIGUERLE Otto, akademikfnan id; CUTA, Frantisek;
JERIE, Jan; HEWER, Kamil, akadeidk; CAPEK, Ladisliiv; LINK, FrAntis"ek;
STRNLD, Julius
Report, m the activities of the C;echoslovak Academy of Sciences.made
dt.ita'--12th General "As#emblY;And the discussion. V69tnik CSAV V no.I.*
Z6-34 '61.
1. Namestak presidents. Geskoslavenaka akademie ved (for Som).
2. Glen korespondent CeskoslovenAe akademie ved (for Mastovsky,
Kaspar, Siracky, Vana, Zachoval, Raska, Pranti, Cuts., Jerie,
Capek,.Lirul~ and Strnad) 3. Predseds. SloVenskej alAdemie vied
(for Siracky).

SEB ENDA, Jan; CEMIN.,'Pavel; WICHTERLE Oto
Alkaline polymerization of 6-caprolactam. Part 7:,RWLt stability of
the q7stem-.&caprolaetam; sodium Balt of 6-caprolact4m. Chem pram 12
no.1:41-45. Ja 162.
1. Ustav mikromolskularni chemieS Ceskoslavenska akademie ved, Fraba.

DREIFUS M.; HOLECKOVA, E.;
Evaluation of hydrocoloid plastic substances in tissue cultures. Cesk.
oftal. 18 no.4*268-271 J1 162.
1" 11 ocni klinika fakulty. vseobeensho. .1ekarstvi KU,-.-r- Praze X., prednosta
akademik J.,Kurz -'F7ziblogicky ustav.Ceskoslovenske akademie ved,
redital doe. dr. 0. Poupa Ustav makromolekularni dhemie GSAV, reditel
akademik 0. Wichterle.
(PLASTICS) (TISSUE CULTURE)

SCHNEIDERO B.j SCHMIDT, P.; WICHn__=__J_O.
On the structice and properties of polyamides. -Part 2: Infrared
spectra of po2ycapro2actam, Coll Cz Chem 27 noA:1749-1759 Ag 162.
1, Instutute of Macromolecular Chemistry, Czechoslovak Academy of
Sciences,, Prague,

h3763
5/081/62/000/023/'101/120
B101/B186
AUTHORS: Maroko,Miroslav, Trekoval Jirf, Wichterle, Oto
.,TITLE:. Method, of polymerizing isobutylene
abstract
'PERIODICAL: Referativnyy zhurnal. Khimiya, no., 23, 1962, 700,
23P300 (Czechosl. PO.' 100471, August 15, 1961)
-TEXT: rsobutylene (I) is polymerized in the presence of insoluble catalysts
obtained by reaction of BF and TiCl with hydroxy and alkoxy compounds
3 4
lof Mg and Al. This is done without using solvents.. Polymers with a
-nlecular weight of 20,000 - 150,000 usable as oil additives, are obtained.
ip controlled by the catalyst quantity. The

S/081/62/000/023/101/120
Method of polymerizing... B101/BI86
the conversion is 90% after 3,hrs, the molecular',wei8ht being 600,000.
Partially hydrolyzed aluminum see-butylate, Al F, Al(OG H Cl
(OH.) 2 Mg(OH)2 3 7 2
.:-ands, instead ofITiC1 SnCl were also used-for producing the catalyst.
41
[Abstracter's note: Complete translation.

Jaroslav, akademik; BLASKOVIC, Dionyzp almdemik; ROWAN, Arnost,
akademik; 14ACURA.. Jiri,, dr.; VARA,,'4osef; GOSIOROVSKY., Milos; BOIff4j,
Jaroslav., akademik; PROCIWEA., Taroolavp prof., dr.; XAM.TS,, Zdenek,
dr.; BRABEC., Frantisek, prof., ins.' FI-antisek., akademik;
NOVAK p Josefj, akademik; NEWANUp Jaromir, doe.,, dr.; BAZAFT,, Viadimi
inz,,, dr.; KOUNOVSKY,, Boh=ilo dr.; S&WOO Jan. dr.; ROZSIVAL, Miroblavs
dr.; KASPAR., Janq dr.; HANKA, Iadislav, prof... inz.1 STRNAD,, Julius;
WICH773RIE -Olto., akademik.- ZATOPEK., Alois; JAVORNICKYs Jan, inz.;
. Jaroslav.. dr.; BIA~TIIY.. CtiborL, akademik; 01-11DRIS,, Karol., dr.;
KWL0 Vaclav,, inz.
The 22d Congress of the Commmist Party of the Soviet Union and the
tanks of Czechoslovak science; discussion. Vestnik CSAV 71 noel-3-59
1629
1. Hlavni vedecky sekratar Ceskoolovenake akademie ved (for Kozasnik).
2. Clen korespondent Ceskoslovenske akademie ved (for Vana, Gosiorovsky.
V---- C24-A 0 - V-1.4- ~--' - - -

CM., J.; SEIENDA) J.
Allcqli pollmorization of 6-caprolactamsa, Pt.9. Co.U Cz Chem 28
no.3:696-708 Mr 163.
1. Irw3titut fur makromolekalare Chemies, TschechoslowwLsche
Akademis der Wissenschaftens Rrag,

akademik; HYIDEK, inz.j LIMI dr.; SEDLACEN, inz., ScC.;
2zal Sec.
Reolearch on artificial macromolecular substance and systemB.
Veatnik.=V 72 no&2:189-195 t63.

DREIFUS, 14.; WICHTERLE, 0.
Clinical experiences with hydrogel contact lenses. Cesk. oftal.
20 no.5:393-399 S 164.
1. 11 ocni klinika fakulty vseobeeneho lekarstvi Karlovy University
v Praze (prednosta akadem1k J. Kurz) a ustav makromolel-ul.arni chemie
Ceskoslovenske akademie ved (raditel akademik 0. Wichterle).

3EVC IK; S, j,
Chaml-cal tran3t- il cn Ft ~ 1, Col n
or 464-477 F Llj~
1. Ins"ituts cl' V;-_lCIlll)7l~Ohcvil-ar Chemi!mry,
of Sciences, Prague.

WICHTERLE, C.; TOMA, J.; SEBENDA, J.
Alkaline polymerization of 6-caprolactam. Pt. 12. Coll Cz
Chem 29 no. 3:610-624 Mr 164.
1. Institute of Macromolecular Chem-tstry, Czechoslovak Academy
Of Sd0n0QGj FraITU0.

STEHLIGEK, J.; SEBENDA, J.-, 0.
Alkaline poly-merizalUon of 6-caprolactam. Ft.17. Coll 'U'z fhE-m 29
no.5S1236-1258 My 164o
1. Institute of Yacromoloeular whemlstry, Czechoslovak Academy
of Scienceag Prag,m,

WICHTIME , 0. , ak rlemllk
Inte,.,,n.h Aoriall of Gheml~atry of tte
International Union of Pure and ;~PyO-ied Ghemiqtry 1-965. Cnem
prum 1/+ no.?.-.385 JI 164.
.1, 'U"reirman o~ the Org-wilzatlon Com, ittrae of the Symposiam.

HTI~
CZ&-ED=YAKIA
K.-,.9FAp J; DBMS# moil WICIrrE=j, 0,
Chmialkwo Czeeboulavak A*&A*W
kwagm (for all)
Pvavw, couseties or Cam staisa cawpowtisup
Um 2- Irftmmma~ lkft"- -

L 29943-66 EWP,(
I IJP(c) RM Z70078165/0 0 0-j-07-00j-f-[0-0lf-7
ACC NR, AP6006154 (A) SOURPE-CODE:
AUTHOR: Wichterled (academician) -(prape).op W~komj, J. (Engineer) (prague) j6
ORG: None
(Method of producing high abrasion resistance organic gla C2 Pat. no. P
6-64
SOURCE: Vynalezy, no. 10, 1965, 17
TOPIC TAGS- organic'glass, polymer, oligomer,. olymerization, catalys
p
du ance or
ABSTRACT: A method. is proposed for pro cing high abrasion resist ganic
glass by the two stage polymerization of ~Ilyl or methallyl esters~r, of 0-saturated
rb.M"hnni n acid esters. - In the first stage anion, polymerization catalysts are used,

ml~U- ---
Wic-4TE9
lomitau for viw*A*a cbmtours(low" At ONSULSHO(al Cbmt*)*
twooloolvw& Aob&W Of adSM06% Ylngft (ftr lag)
frmgws JdAMdAqj a ow4jLaS&jMgL co 2p
VP 6764W

ACC NIts AP6020347 SOURCE CODEt -6Z ~0008-[65/05916j:Vllfjfffij~
AUTHOR tWighterlova, Blanks-, Jim, Pavel
ORG: I of PITsical Chewdstry, CSAV. Prague (Ustay fyvikalni chemie CSAV)
TITIE: Pulse wthod for the investigation of the velocity'of haterogonous solid
phase* Gas -- reaction combined with a - gas-ohronatographia ana3j"is of gas reaction
products
SOURCM Chesdaks listy. ve 59. no. 12, 1965, 1451-1455
TOPIC TAGSs gas chromatography, chemical kLnetics
The authors dbalgned an a0paratus-whiih facilitates ths~
ABSTRACTs
of reaction kinetics of gases passing through a layer of
~Btudy
a solid reactants When. the reaction rate Is too fast to allow
a-study with a continuous gas stream it is an advantage to intro-I
man 4n nn;rnral interruvted dosage The apvaratus Is do- I

NIGHTF-RrO',"A. Blanka; J11W, Pa-rel
Kinetic
X
- s of catalytio oxidation of met.'hanal to !'orma;' iehydt- Ott a
Fe20)-""o03 catalyst. Chen prvim 15 no-.4-198-W-2 Ap 165.
1. Institute of PlVifib~al Chemistry of The Czechoslovak Academy
of Sciences, Pragi.-e.

Infrared rays in the food iMustry. Tr. from the Gervan.
(PRUIrZSL PUDWRi, Vol. 7, No. 4, 1956, Praha, Czechoslovakia)
SO: Monthly List of East E"ropean Accessions (FML) LC, Vol. 6, No. 12. Dec 1957, Unc!.

mv~ WQW4 OMM-W
~YSI V
New method of pasteurizing beverages. Q. 325. PR' P07?~'.
(Ministerstvo potrovinarskeho orumysl-u) Praliq. Vol. no. 7, )56.
SOURCE: Zast European Accessions List, (E&U,), Library of Congress
Vol. no. 12, December 19~6.

VIGIK,_Kar6l, inz.; ORNACKI, Jan,Anz.
A nev technology of liquid-concrete stowing in the Orzel Bialy mine.
&Idy i metale 6 no.6:252-258 Je 161,

WIGINSKI, Ryozard
Method for the gnantitative determination of uterine activity in labor.
Mag.Y. noorv. lap. 21 no.1:1-8 Feb 58.
1. A Bialystoki Orvostudomanyi-Akademia ezuIeszeti klinikajanak
kozlemenye (Igazgato,. Stefan Soazka dr., egyatemi tanar)
(LABOR, physiol.
uterine contractions. qpantitative measurement by Lenard's
tocograph (Hun))

HOJDZN. Irena; VICINSKI, Ryssard
-------
The utility of the part9gram In the observation of parturition.
Gin.poleka,31 n6,4:419-431 ji-Ag 16o.
1. Z.Xliniki Polasnictwa I Chorob 11oblecych A.K. v Walymetoku I
I Kierovnik: prof. dr *ed. S.Sovska.
(LABOR phyisiol.)

JASKINWICZ. Janina;.WICINSKI, R"zard
Contraction function of the uterus In parturition and hemorrhages
of the 3rd period. Gin.polska 31 no.4:441-449 Jl-Ag 160.
1. Z Kliniki Poloznictva I Chorob loblecych A.M. v Binlymatoku
Iterownik: prof. dr mad. S.Soeska
(LABOR pbratol.)
(HEMORRHAGI, POSTPARTUM otiol.)

_I
NICHA=, Vladyslaw: VZOINSU, Rysxard
Purther observations and results of Inducing labor. rsin.polska
31 no.4-463-"8 JI-Ag 160,
1. Z 111niki. Polosalotwa I Chorob Kobiecych A.M. w Dialymstoku
Ilerownik: profe dr med. S.Soesks,
(LABOR, MUCED)

MUSIATOWICZ, Jozef; WICINSKI. Ryezara
A partiwition obaervation card (method of graphical p~---eaentatlcn
of phenomena occurring during parturition). Gin.polaka. 31 no.4:
475-481 ii-Ag 160o
1. Z Kliniki, Polozaletwa I Chorob Koblacych A.M. w Blalymsteku
Xierownik: prof* dr zed. S.Sosska.
(LABOR Phystol.)

M WATKO.W,- WICINSKI&R.
Behavior of blood ser= cholinesterase in the 10th momth of
pregnancy. in parturition and the puerperium. Gin.poliska 31
no.'~-.483-486 jl-AG 16o.
1, Z KlInIkI Poloznictwa i Chorob Ko'blecych A.M. w BialMtoku
Kierownik: prof. dr med. S.5092ka
(CHOLINISTIRASE blood)
(PMNANCT blood)
(LABOR blood)
(MUMEW, blood)

SOSZXA. Stefun; WAIC0'31CI, Ryezard ,
Diagnosis of incoordinated contraction function of the iterus
in parturition. Gin-Polska 31 no*4:515-521 Jl-Ag 960.
1. Z Kliniki FoloznIctwa I Chorob Koblecych A.M. w Bial~mmtokii
Ilierownik: prof* dr med. S.Soszka.
- (LABOR compl.)

ZASZTOWT, Otton; WICINSKI. Ryezard
. Contraction function of the uterus In parturitions of elderly
prlmiparas. Gin.polska 31 no.4:523-531 ji-Ag 16o.
1. Z Kliniki Poloznictwa I Chorob Kobiecych A.M. w Btalymstokli
lierownik: prof. dr made S.Soaska.
(LLBOR compl.)

ROGALEWSKI, Ro*an; WICRISKI, Ryszard
DifferentW constant current amplifier for electrobiological purpo,,-.3.
Acts. physiol. polon. 13 no.3:437-439 162.
.1. Z Kliniki Poloznietwa i Ghorob Kobiecych AM w Bialymstoku Kierownik-
prof. df St. Soiska.
(ELECTROPHYSIOLOGY equip & supply)

WICINSKI, R.
Principles of the intracellular registration of bioelect-rical phenccleena
in smooth muscles.: -Acta physiol. polon. 13 no-5:663-6?0 162.
1. Z Kliniki Poloznictwa i Chorob Kobiecych 91 w Bialymstoku Kierownik:
profi dr St. Soszka.
(MUSCLE, SMOOTH) (FIECTROPHYSIOLOGY)

WICINSKI, Rvszard
EUctrobiological phenomera. in the my-omet-riumm of the vhil~,e
xult and guinea pig in eatrus, Gineko Pol. 34 no.2-199-2404
763.
L Z Mnlki Foloznict~m I Chorob Kobiecych AM w Bialymstoku
Kierownikilyrof. dr mad. S. Soszka,
ESTRUS) (UTERUS) (ELECTROPHYSIOLOGY)
I)IETHYLSTMESTROL) (PIIARMACOLOGY)

TECHNOLOGY
periodicals: KOURSTVI Vol. 8, no.?, July 1958
wicn,H. Production of suede leather. Tr. R-om the German. p.215.

WICZYK, Stanislaw
Rhewwtic diseases in deep-sea flohermm. Bull, State Inst. Marize
Trop., M. Gdansk V01.5,270-281 1953.
1. Z Panetwovego Instrtutu "eyny'Norskiej I Troplicalnej w
Gdanskm I Contraanej Wojewodskiej Poradni PrzecIwrsu*Mtyczuej,
(PGGTJPATIOMIAL maksm,
Orhmm, I! fishermen)
(RUNUMALTISM,
*In fishermen)

Excerpta Fleftca See. 6 Interml Meftans Vol. 9/5 IW
3341. WICZYK 5, Paristwowegu Inst, nied. Morsiciej i Tropikalriej, Gdaeisk. *God-
w6r6d j-ybak(~w dalekoinurskich. It li o u ma i o i d a r i h r i I i s
am on g d e e p s e a f i s ii c r in u ri POL. TYG. LLK. 1954, 9131*1 (104,1-1050)
Tabies 7 (VI, 17*)

son=
BLAWAT. 7.; WICZYX,- 50; ZACHALMU, A.
Immunological reactions for brucellosis in arthritis deformans.
Bull. Inst.Narine Trop. KAWsk 6:87--~98 1955o
1. 1 Panstwowego Inetytutu Medycyny Morskiej i Tropikalnej w
Gdansku) i WeJewedskiej Poradni Przeciwreumatycznej w Gdansku).
(AVMRITI'S, MUMTOID, immunology,
Immmol. reactions for brucellesis)
(BRUCELLOSIS, immunolo&7,
Immunol. reactions for brucellosis in rheum arthritis)

WICZYK, S.
Articular changes In young shipyard vorkero using compressed air
Instruments. Ned.pracy 6 no.2:117-120 1955.
1. Instytut Kedycymy Korkiej - Gdansk.
(OCCUPATIONAL DISV=
jolat dis. in young workers in shipyard using compressed
air Instruments)
(JOIM, diseases
occup., in young shipyard workers using coilpressed, air
Instruments)

FUJIL, Alojzy;,- ni~~ KOPECIOWA, Olga
Locomotor organ in divers-and its relation to decompression
sickness. Bull. Inst. Marine Trop. M. Gdansk 7:224-232 1956.
1. Z Panst. Inst, Med. 'lore. i Trop. w Gdansku.
(JOINTS, In.various diseases,
decompression sickness (Pol))
(DIC011PRESSION SICKNESS, patbology,
Joints (POW

A JzMICA See-17 Vol.4/1 Public Healtheetc. JaA58
h_6.-_W_ I&Yk S. Odd. Hi * Pracy Inst. Mcd. Morskici Gdans~. Skargi
owe WS "Yekomorskich. 11 Incidence of ' eumatic diseases
gascc r ak6w da rh
among deep-sea fisbe n. 11 Med. Pracy 1957, 8/1 (47-55) Tables 10
in 1955 a roUp of 749 deep-sea fishcrmcn was cxamincd, by the staff of the
institute of Marot;me Mcl;clnc- Ile author, who took part in these investig-
ations, worked out the frequency of rheumatic diseases according to employ-
ment (deck group and engine room group), age, period of staying ashore and
od of fish '"b* Ile incidence of rheumatic diseases was found to be
p
eri 9/0 !ry 0
37.5 ; this inciJence was greater in the engine room group than iii the
deck $roup.(42.2 :34.6), it was greater among older fishermen, after a longer
fisherin; job. and a longer stay ashore. No relationship bctweet-1 potential
foci of infection (tonsils, teeth) and rheumatic diseases. was found. (VI, 17)

t4,1 e 2.
WICZYK, Stanislaw
Joint changes in ship7ard workers dealtng with compressed air
apparatus. Bull. Inst. Marine M. Gdansk 8 no.1-2:151-156 1957.
1. Z Instytutu Medcyny Morskiej w Gdaneku.
(JOINTS, Pathol.
changes in shipyard workers handling compressed air
appar. MID
(OCCUPATIONAL DISIFASIS
same)

WICZYK, Staniulaw; WOJDAT, Waclaw; M&TULEWICZ, Stanislaw
Docker's lumbar region of spine. Bull. Inst. Marine N. Gdansk 9 no.1-2:
65-75 1958.
1 (Prom the Institute of Marine Medicine in Gdansk and of the Radiology
;;partmnt
of Medical Academy in Gdansk)
(BACVLCEM,
ana3ysis In dock workers & stevedores)
(SPDM, diseases
analysis of lumbar disord. in dock workers & stevedores)

VIC%YXOWA, Barbara
Cytologic picture in cases of complicated pregnancy. Oin. polska
26 no-1:101-107 Jan-Mar 55.
1. Z Kliniki Polocnietwa, i Chorob lobiecych A.M. w Gdansku.
Klerownik: prof. dr J.Zubrzycki.
(VAGIM SMEM. in pregnancy.
diago value)
(PRIGNANCY. complications.
diag., vaginal smears)

CZ.YIIOWA,.B ig,.kra.
Evaluation of functional disorders of the menstrual cycle In
sterility. Gin. polska 27 no-3:391-395 May-June 56.
1. Z Kliniki Poloznictwa I Chorob Kobiecych A.M. w Gdansku
Kierownik: prof. dr. J. Zubrzycki I doc. dr. S. Metler
Gdansk-Wrzeszes, u1. Kochanowskiego 59. m. 1.
(STERILITT, MALE, diagnosis,
histol. & hysterosalpinographic methods in funct.
cases (Pol))

AUTH ORS-
TITEL*
P/01 5/60/000/004/00 1/00!
A076/AO26
Winograd6w, Leon and Widaj, Barbara
Reaults From Studies on Ceramic Products for Condentsors With a
Temperaturg/Bielectric Penetrating Coefficient of TkE = -150
4o . io- C
PERIODICAL, Szk1o i Ceramika, 1960., No. 4, pp. ICIP-114
TECT: The article describes the dielectric penetrating properties and
temperature coefficients of ceramic products used in the manufacture of radio
condensors. Further, it describes a ceramic condensor recently developed in
Poland. Tests per-formed during its production aimed at consolidation of molar

P/015/60/000/004/W1/001
A076/Ao26
Result's From Studies on Ceramic Products for Condensors With a Temperature Die-
lectric Penetrating Coefficient Of TRE 150 -k 40 . 10-6/6c
sing, the'samples were sintered In an electric Lunnel furnaoe. Electric pro-
perties were tested after silver electrodes had been pressed into the samplos.
The best properties were obtained by applying technical. titanium cUoxide bough',
from Japan and crude magnesite mined in the "Wiry" mine in Lower Silesia. The
titanium dioxide had the following che.%-, cal compounds TiO2 - 99.40 % and Fe203
- 0.06 %. Further, spectrum ana1zfzis showed traces of Al, Mg, S1 and Na. The
raw material was burnt in a round coal furnac-9 at 1,2500C in' oxidizing atmos-
phere. Due to great. dif f erence in temperature in various parts of the. fox-nanaG,

85633
P/015/60/000/004/001/c/il
A.076/AO26
Results From Studies on Ceramic Products for Condeneors WIt a Temperature Die.-
leetrio Penetrating Coefficient of TkE 1,90 t 40 - 10--()/OC
odded to the mass did not decrease the sint ering temperature. In order to ob-
.ain a high degree of disintegration, especially of.sintered T102, the material
was milled for long periods with the result that traces Of S102 were found,
which originated from balls and lining of the mill. To check this, titanium
dioxide was milled.in a Soviet vibrating mill type M-200. Weight ratio between
raw material and steel balls,was 1 '.5. VibrW,;ing frequency of the, mill was
about 3,000 cycles per minute with amplitude 2 mm. Milling time 0.5 hours. The
plus mesh on a 10,000 mesh/cm2 zieve was 6 to 7 %. Granulometric composition
of Ti0q was established by tha Andzreas-en method. The Ti&.3 mass was wet-milled

P/015/62/000/002/002/002
DOOl/DlO1
AUTHORS: Widaj, J6zef; Szeliga, Jokef; Zarukiewicz, Maciej
TITIE: Silver pastes used in the manufacture of radio ceramics
PERIODICAL: Szk1o i ceramika, no. 2, 1962, 47-57
TEXT: An in forymtive review is given of the composition, manufacture, and
application of-silver pastes used.in coating radio ceramics with a layer of
silve3r. A great number of usable constituents are listed and their effect on
silver paste properties described within the scope of a cursory treatment. There
are 11 figures and 4 tables.

P/015/62/OW/003/001/001
DOOI/DIOI
AUTHORS: Winogradow, Leon; Widaj, Jo'zef; Cies'laj Marian
TITIE: The effect of grain size and vibration grinding on the properties
of resistor ceramics
PERIODICAL:.- Szkko i ceramikapno. 3, 1962, 83-87
TM: The article is the,first part of a report serial on a test made by
the Katedra Ceramiki Szlachetnej (Chair of High Grade Ceramics) of the Akademia
Go'rniczo-Hutnicza (Mining and Metallurgical Academy) in Krak4fw under a research
line which has continued since 1953 in cooperation with the radio ceramics in u
d s

P/015/62/000/004/001/001
DOOI/DIOI
-AUTHORS: Winogradow, Leon; Widai, Jozef; Ciesla, Marian
TITLE: The influence of grain size and vibration grinding on the properties
of resistor ceramics
PERIODICAL: Szk1o i ceramika, no. 4, 1962, 112-118
TEXT: The article-.is the last part of a serial and describes tests and
results. Ceramic samples were prepared from a composition of 25.7% Scandinavian
feldspar, 25.0% indigenous quartz, 40% kaol-in, 7.4% clay, and 1.9% barium car-
bonate. The raw material was processed in four different ways: 1) conventional
method as used at the manufacturing plant; 2) both feldspar and quartz were

P/015/62/000/004/001/001
The influence of grain size ... DOOVD101
unit volume of grains was determined in a Blaine apparatus and expressed in.units
o
f
103cm2/g. Test samples prepared from moistened powder mixtures were fired for
80 minutes at 1,250OGi 200C and examined for dielectric roperties such as Sus-
p
ceptibility, breakdown strength, loss factor, and physical properties such as
shrinkage, water absorption, etc. Conclusions: Grain size and grinding techno-
logy have a great bearing on the properties of ceramics. Preliminary grinding of
ges
feldspar and quartz is recommended for better properties and further advanta.,
such as lower firing temperature, lower flux content (feldspar), reduction of
wet-grinding time from 50 to 20 hours, 1,500 CM2/g more surface-area: per unit
volume, about 1% less shrinkage, 0.11/. less water absorption, about 100 kg/cm2
more breaking strength, an increase in breakdown strength by 5 kV/mm and overall
improvement.-in dielectric properties. There are 2 tables and 8 figures.

J*k
P/015/62/000/010/002/002
DOOl/DlO1
10
AUTHORSt Winogradow, Loon, Widail iozef; Szykula, Pdwol
TITLE: Paraffifi'wax as plasticizer in the production of capacitor di-~
electric based on barium titanate
PERIODICAL: Szkloi ceramika, no.'101 1962, 303-314
TEXT: The Zaklady Ceramiki RadioweJ ~Radio Ceramics Plant) and the
Katedra Ceramiki Szlachetnoj Akademii G6rniczo-Hutniczej (Chair of Ceramic
Whiteware of the Metallurgical and Mining Academy) in Krak6w examined the
offon+ nf -nqrnffi-n wny n1nRtiri7.P-r nn thp manlifitntiira nnd nrnnPrfiPn nf nn-

P/015/62/000/010/002/002
;Paraffin wax as plasticizer in the ... DOOl/DlOl
:results were achieved with a paraffin content of 4%, with disks pressed at
~1,500 kg/cm2 and heated,at 1200C for 1-hour. Disks-thus prepared had a
mechanical strength of,6kg against the minimum required 2-5 kg. Mechanical-
istrength was established.by resting a 600 conical steel point with a tip of'
r = 0.3 on the samples!and adding ballast until destruction. There are 9
igures."
,tables and 17 f f -.fAbstracter's note: The unit in r.- 0-3 is not spe-
~Cified-7

4 Z 6
-327-65 Ve-
WT(
T-2TSVP (b) /EdA (h) Pab -10/Pt-IO/Peb IJP(c) JDIGG11,1H
AccESSION NR: AP4045681 P/0015/64/000/C'(M/0243/0246
AUTHOR: Widaj, Jazef, Broka, JOZef
E----P- ropertles ot harium -titanater ceramlcs~ modified with'bls~ufh- st2nnate synthesized
from oxides
SOURCE; SAW t ceramika, no. 9, 1964, 243-246
'6' --'- -efec. 61 r p ~X
-titaijEijj,1:- ISMII
MU
T GS: baki ~stanrkai r; tUdnitan- --ceramid *tr-ic - p o er
12 7 2~7
ABSTRACT: The authors studied changes in the electrical parameters of barium titanate
ceramics, caused lay the addition of biwmuth stannate. The synthesis of the 'atter is desc-
ribed. Ceramic parts were prepared from BaTiO3 and Bi2(Sn03)3 sinters. The measured

L 24327-65
ACCESSION NR: "4045681
A-080CL4TION.- nona
.., SUBMITTED: 00
NO REF sov; 000
ENCL: 02
OTHER: 005
SUB CODE: MT

L 24327-65
ACCEESMON NR: AI'04045681WO
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cc
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11
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Temperature, *C

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ACCEMON NR: AP4045681 ENCLOSURE: 02
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4/4
C~rd
'/EPA( ;-;z r-w /BPFI a -2/1'PAIwY-2/VdP(b)/LqIA(12)
12 it~ I V C
a ,
VMS--l'o Pt-lo/p--ab ASD(a)-5/ASD(m)-3/AS(MP)--2 t4H
4404930' 'PNO15/64/006/011/0301/0307
AMHQR*-~~ Wind Rr i4ow WidaJo. J., Lutze-Bitky- Ai
7,-
7:
-,c4'* citor
nt5,6,f:-Mk ca city~.,,ceramic.
a s

-77 ~7- 7:~7-. ~~7_
xeaucrton~ of-, BaT103 and-
f ft
--die lectrico4~-and 'discusq*.,j-n -cetaLL- cne'.
o
n -the bas's a 1 9 survey, t1id'46th6te carve to some pre-
t4nate ceramm.
liminary conclusions regarding the use of dielectrics with a redox layer and the
effect of the addJ.tion of La203 to BaT103 on the processes of reduction and re-
oxidation, Orig. art. has: 15 figures, 'I tables, I formula and several
chemical equationei.
ASSOCIATION:
SUEMITTED:
NO REF Saf.
None
00 EUCL; 00
SUB CODE: IC, EC
004 OTHER: 031

L 23098-65 FE(.*(h)-ZAPF(n)-2/-,.DA(s)-2/SPA~w)-2/ m.A(h) Ma 0 1 A w-, (7, 1 /F E r, W
Ellp (b) /I (e) Pt-10/'Pu-4/Pab-10/~eb 1j-P C) GG/WH
ACCESS1014 NRs R5002230 P/()015/64/000/012/0)28/0330
AWHOR: Winogradow, L.; Widaj, J.; Kwatera, A.; Lutze-Birk A.
TITLEt Attempts at manufacturing dielectrics with redox layers
SOURGEt Szklo i earamika, no. 12, 1964, 328-330
TOPIC TjIGS: barium titanate, lanthanum oxide, ceramic material, dielectric
material, capacitor dielectric material, redox, redccc dielectr-Ac manufactl--?
ABSTRACT: This experi Aal work was carri6d out in the follc~wing sequence:
3~
a) prepar9tion of BaTiOmEd RaTiO-~ + La 0, samples; b) firing inthe presenne
3 2
'r n Jnnt-r;~ nrnnprti nq - ri I r-i I -t

layers. The experimental results for the latter are given in Table I of the
Enclosure. The experimental data lead to the following conclusions: A") the
manufacture of capacitors of high capacitance through the ap lication of d-ielee-
trics wita redox layers is possible and re)atively simple; 2~ optimun resulte
are obtained with BaTiO3 + La~03 'which are 99.5 and 0.5 per cent by weight,
respectively; th~3 mixture fired at 138CC must be subJected to lengthy reduction
~: :. Card

-ZVI r~
SOOK4
boo)
Maio pimt
pp Ga"o

Oq8-65 -2. RW(t) L?rdP b,
T, Il ZWt(I)/-7WP(e IVEPA(s)-2
:a b-
-7
_JQ
,AUYROR: Widaj, J.
~Ivj~k: --Z'ffectof grindi and firing on dielectric propertieete and tan 6) of
:k~L~iumt titanate ceremiCs
SOURCE: SzkIo i ceramika, no. 5, 1965, 138-141
ITOPIC TAGS: ceramic, zarium titanate, titanabe ceramic, ferroelectric, &rIrd-4a&,
firing , dielectric conatant, dielectric loss tangent
AWTIPJAM- rrr~jt -~f th,& afraiq nr rnrming procovicH on tne properticu or rcrrg-
-erwnli-- ~~r the proress vhfz-h --ause
PP;ji* p -f, rap-.! - fi. .1e 'Ieip-r4-
n s 4,-3p' in! -;ir-j ,ire -'~)r,:3idert:d -ti ---,e