CONTRAST RD-III, TASK I, WITH GENERAL TIRE AND RUBBER COMPANY, AKRON, OHIO - REQUEST FOR EXTENSION OF TIME

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Collection: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP78-03642A000700070002-5
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
15
Document Creation Date: 
December 22, 2016
Document Release Date: 
May 4, 2011
Sequence Number: 
2
Case Number: 
Publication Date: 
December 17, 1957
Content Type: 
MEMO
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PDF icon CIA-RDP78-03642A000700070002-5.pdf738.1 KB
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I it Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 i*tr ,itiont Orsa & 1 3. ulo/= 1 - ,PASB 3 - am P116 EDC 3Pr~ojflus CDkFIDENTIAL G) Q 1^ IT I DENT 25X1 25X1 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 December 10, 1957 Reference: P.N. 528 Attention: Howie Attached is a copy of Report No. 314 Supplement "A", Progress Report - Waterproof Container, dated December 10, 1957. Very truly yours, n r eve opmen Department CONFIDENTIAL ALL AGREEMENTS CONTINGENT ON STRIKES, ACCIDENTS OR DELAYS BEYOND OUR CONTROL AND REQUIRE APPROVAL OF AN EXECUTIVE OFFICIAL OF THE COMPANY. ALL QUOTATIONS AND SALES CONTAINED HEREIN SUBJECT TO CHANGE WITHOUT NOTICE. Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 V 25) REPORT 314 Sup. "A" MODEL DATE 12-10-57 TITLE PROGRESS REPORT - WATERPROOF CONTAINER PN-528 SUBMITTED UNDER Contract RD-111 PREPARED BY REFERENCE- I APPROVED BY1 25X1 CHECKED BY Photos 14890-1 11 NO. OF PAGES 14890-2 and Sample Data NO. OF DIAGRAMS REVISIONS NO. DATE SY CHANGE PAGES AFFECTED COPS Imun, At Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 ANALYS#S CHECKED BY N0. SUBJECT, I. Purpose Methods Conclusions Recommendations PN-528 Activity PHOTOS General Tire #14890-1 General Tire #14890-2 SAMPLE DATA Central Development Request Central Research Laboratories Request Expenditures on PN-528 PAGE Index 25X1 31425X1 A REPORT No. MODEL DATE 12-10-57 ? Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 ANALYSIS-_ PREPARED B CHECKED BY APPROVED B PAGE 1 25X1 314 25X1 A REPORT No.- MODEL DATE 12-10-57 I. The purpose of this report is to augment our prior report No. 314 in logging progress achieved in the performance of Contract RD-111 for the development and prototype delivery of to water proof containers. Two methods of closures are to be attempted, one a double slide closure, the other a dove-tail bead type closure. We have logged monthly progress for September and October in Section V of this report. II. The methods intended for this period remained unchanged, namely- To survey and select suitable container fabrication material To accommodate our double slide closure to use on. subject containers. To accommodate a dove-tail wire bead (or equal) closure within the container design. To deliver a prototype bag for each of the two designs. III. The conclusions arrived thus far may be summarized as follows: A. Pertaining to the selection of optimum container material: 1. We have further confirmed a laboratory technique for laminating a foil suitably to a neoprene coated base cloth. Our is evaluating the feasibility of processing such material on a production basis using our avilable calendering facilities. No pilot run of such material has been contemplated,until this type of lamin- ate is established as optimum,, 2. Through discussions with Dobeckmum Company personnel we have obtained samples of "aluminized" film such as saran in the attempt to laminate this film with neoprene coated base fabric. Providing the aluminizing furnishes an im- proved barrier to deter transmission one advantage in a saran film laminate would be in the stretchability of the laminate which offers a great advantage in the fabri- cation techniques employed to build a container. The lack of strength or "waroing" of the alum foil laminate renders the use of such material awkward in building a container. 3. Even if the "aluminizing" of saran is not conducive to increasing the barrier to water transmission we are inquir- ing into the use of saran and several new stretchable films as suitable laminates in themselves: 4. Dobeckmum's attempts to aluminize several of our neoprene sheets and several samples of Haartz-Mason and Vulcan coated fabrics were not successful. The primary defection. was in the overheating or charring of the alum spray or rubber during the required high heat inherent in the process. PA Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 25X1 ANALYSIS PAGE 2 PREPARED BY REPORT No.-314 Sup. A CHECKED BY MODE! APPROVED BY DATE- 12-10-57 5. Until receipt of properly sheeted saran and films which must then be laminated to our available coated stocks and tested for water transmission, requiring about 30 days, the status of our search for optimum container materi- al remains on the level of inquiry into possible combination of laminate materials. B. Pertaining to fabrics now being used to construct test containers: 1. Comparative data of a limited number of water transmission tests vs the usual MVT tests of available coated fabrics indicate that transmission of water contacting the material runs as high as 4 times the amount generally indicated in MVT tests. 2. Generally, the pre-cured coated material offers utmost reliability as a barrier to water transmission, well chosen ',;- adhesives assure strength in peel and tensile tests very r. comparable to that of vulcanized seams. Consequently trial containers of both the vulcanized and air-cure construction have been added to the yellow con- tainer demonstrated. -All are awaiting satisfactory closure assemblies. C. Pertaining to the slide closure: 1. Since demonstration of the 18" closure last October, a new mold for a 70" closure has been obtained. Several attempts for its use has indicated revision of the central core section which proved too fragile to withstand shear- ing of rubber during closure. 2. Our compounders have run experimental amounts of several softer stocks designed to provide easier molding. The first compound was found to have too low a tear resistance. The latter compound has not yet been molded or evaluated. 3. Upon successful molding of the sealing section we antici- Date installation of the slide fasteners and metal seal upon a six inch diameter fabric cylinder for preliminary leak tests. 4. Subsequently a duplicate assy will be attached to each of the three containers from which one will undergo a 24 hr, a 48 hr, a week and a month's leak test under a 15 ft. head of water. 5. We consider our procedure to be on the threshold of a usable closure. Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 ANALYSIS PREPARED B CHECKED BY APPROVED B D. Pertaining to a dove-tail bead or similar closure: PAGE __..3 _ REPORT No.314 Sup. _A MODEL _ DATE 12-10-57 _ 1. Hand built, drum cured models of this closure are too variable in dimensions to permit adequate evaluation. 2. From the point of molding, this approach is apt to re- quire considerable "trail and error" in defining proper molded configuration. 3. Our progress in this approach has been only fragmentary. E. Pertaining to accommodation of closure to prototype containers to be delivered as suitable for testing: 1. From our discussion of closure progress above -e foresee possible a container suitable for our tests in four weeks 2. A subsequent program of 5 Meeks testing is required. IV. Recommendations: A. To provide relief for time delay experienced in re-w,rking mold and devising"suitable compound for molding it is requested a target date for assembled prototype be made January 15, 1958. B. To provide 52.weeks leak testing at our facility a finished target date for February 21, 1958, is suggested. C. That those phases of lamination enumerated above be completed with min. effort possible. to provide positive or negative evalua- tion of commercial feasibility of a practicable laminate. D. A final report on effort & delivery be presented by March 21, 1958.' E. The balance (10,10) of funds to be utilized to finish laminate tests now under way and to finish assembly of a prototype suitable for testing. Enough funds should be available to provide a final report. Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 ANALYSIS PREPARED BY_ CHECKED BY APPROVED BY PAGE- 4 REPORT No314 Sup. A MODEL _ DATE_ 12-10-57 V. The following activity was logged against PN-528: A. Pertaining to obtaining optimum laminate material: Work Request No. 1 (8/15/57 to 9/20/57) Moisture vapor transmission of Haartz-Mason yellow life vest nylon, coated one side, Neoprene, MIL-C-19377. Tested to ASTM E-96 with sample data sheets attached. Observation: The MVT data obtained was exceeded by almost five to one when samples were exposed to contact with liquid water. This contact figure we have termed Water Transmission Rate, or WT data. Work Request No. 2 (8/23/57 to 8/30/57) Lap seam tensile test using C-165 air cure cement on Haartz-Mason nylon fabric, coated one side, Neoprene, yellow, MIL-C-19377. Observation: Poor peel and tensile results using GTR cement. Regarded unusable for container. Work Request No. 5 (9/10/57 to 10/16/57) Laminating H & M twill life vest fabric, MIL-C-19377: 1. Neoprene to Neoprene uncured. 2. Neoprene to pliofilm over Mylar cured. 3. Neoprene to aluminum over polyethylene cured. Observation task No. 1: Accomplished in 30 minute press cure at 300? F. Results: Peel and tensile test satisfactory. Observation task No. 2: Former attempts unsuccessful due to blistering of pliofilm and delamination thereof. Such defects voided this test by not cementing pliofilm. Cement used on Neoprene was Angier Airdry, Neoprene type without accelerator. Sample of this laminate was demonstrated October 16, 1957. Observation task No. 3: (Sample similar to Task No. 2 using pliobond was demonstrated October 16, 1957) Improved lamination obtained through use of Bostick 4025/MEK cement, 5 minutes at 2500 F. at 100 PSI ram. Work Request No. 6 (9/10/57 through 10/16/57) Water transmission of sample in Task.No. 3 of Work Request No.-5: Observation: Consistent test results were not obtained because of doubtful seal. Good seal between cup and nylon portion of Neoprene fabric was difficult to obtain. Results: Inconclusive. Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 25X1 ANALYSIS PREPARED BY CHECKED BY APPROVED BY PAGE 5 REPORT No.314 Sup. A MODEL DATE 12-10-57 Work Request No. 7 (10/3/57 through 11/7/57) Water transmission test of Vulcan #7136 fabric, 3 oz. nylon, Neoprene coated, .022 ga., cured. Observation: Rate of water transmission is about one-half that of the MIL-C-19377 Haartz-Mason used in first yellow container demonstrated October 16, 1957. (4.4 to 5.1 MG/24 hrs./in.2/ complete fabric thickness.) This is also in accordance with da published by Vulcan. Work Request No. 8 (10/3/57 through 11/7/57) Water transmission test Vulcan fabric, style #4137, Neoprene coated, 5 oz. nylon, .032 ga. -p Observation : Best water transmission rate thus far, about 25% permeation of Haartz-Mason fabrics. It should be noted that this gage exceeds Haartz-Mason fabric by about 10 mils. Work Request No. 9 (10/3/57 through 11/7/27) Water transmission test Vulcan Buna "N" coated 3 oz. nylon, style #7203, .022 ga. Observation: Water transmission rate equals .032 Neoprene in Work Request No. 8. This material practically impossible to obtain satisfactory seams in open steam. Work Request No. 10 through 22 Research & Development Laboratories have been entered with primary emphasis on obtaining water transmission rate of various materials and laminates. For example, a repeat on the above tests are made on some samples in which the laminate film has been perforated several places so that we may check the degree of channeling, or wicking, of the leak between the laminating layers. Our most recent requests have emphasized the use of a stretchable type film which may be applicable in the development of a material for wrap- ping items for storage as well as for use in the subject container. B. Pertaining to the waterproof container development: 1. A 70" mold, as shown in photos 14890-1 and -2, was drawn up and prints sent to General Metals for fabrication. Delivery: 4 weeks. 2. Both cured and uncured fabrics from Haartz-Mason were fabricated into prototype containers, however, the container and a number of various sample seams of the "uncured" type fabric proved in- ferior in both seam strength and predictable shrinkage. Haartz- Mason personnel later advised this type material not suitable for open steam cure. Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 r 1V-~ C25 ANALYSIS PAGE 6 25X1 PREPARED BY REPORT No.345 p_._ A CHECKED BY MODEL APPROVED BY, DATE- 12-1 OZ57 3. A T-15 tread stock was used to load the 70" mold when received, however, improper prewarming of stock lead to warping of core of mold upon ram closure. Rework of core again resulted in 11 week delay. 4. Specially soft loading compounds have been utilized to accommo- date use of mold with easily warped core, the results of which are also shown in accompanying photos. These inserts have not as yet been assembled into a zipper closure. An improved modulus stock is being tried for this mold. 5. The better of the two seals will be assembled on body fabric made to fit a steel mandrel for preliminary leak tests. 6. Pending the above, duplicate construction will be employed on a suitable prototype container. Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 .. 11-1 ., w g ,.Ly. - U F -_ a. r:: r Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 'erort Lo, 314 up, rage 8 Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 91 LI_ 111'1.111 II Il ~IIIIII~' VIII II Hill,[ III I Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 -H 11 pL iz _D64-r,~ rt No. 314 SUP. "A" Page 9 S M 0- tj . Ce.ntma Tr'ew onr ft Rc writ. PiOo.w..le.~,._ .... Seap1r,~ia iianetlirig Stud Y Attn: ,r. Sanger: Research & Deve1o nlnt Date Request: Att +vd #. y VqOpVW 'm *2= 7wl3y jtte v4et ad mla .409 ire, ?Z'?T,?~-i9 otwed. MmUtwe Vapor m lord ai t m?--4;~ ,) to ASS (J69? (gr m / t~?/mF c ~/ea r t t to cold. Intended :me: Your ecmient3 are - irivite: . Before return.thg t is folder labeled 1:.. Total hours labor:,' -.Technician . V1C1-1\iill. J A Administrative Charges for material: Outsid4.. Inside 3., Any. charges for tool, outside servic?s, etc, should be noted to our attention. xip ., Arc, references sufficient to relate t ion of work done? Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 , ILdl Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 i9 M P4. C Z,4 Report Date Submitted:- Sample No.: Analytical Order No.: 54 117 CENPRAL RESEARCH IABORATaR ES Analytical Request Sheet 12Z 7J (O Submitted By: Location of Data No. of Samples: Project No.: ,1 I L-f -.123 7 7 Date Completed: Sample Description and Composition: f 2dA&A,r4i- -1!'377 Request4p!~?~_g- emal / ul~~~t /I 7Z I r 4F _ Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 IAL Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5 ANA,LYSJS PREPARED B CHECKED BY APPROVED B EXPENDITURES ON PN-528 Estimate 100% Engineering $1,308.00 Labor 1,356.00 Research 1,232.00 Material 460.00 Purchases 260.00 Total $4,616.00 Balance PAGE 11' REPORT No. 314 Sup. A MODEL DATE_ 12-10-57 CONFIDENTIAL Used End Oct. Used % _ $1,923.56 147 866.82 63.9 651.90 52.9 448.73 98 182.8 70 $4,073.85 88.2% 542.15 11.8% 1. Engineering requirement higher than anticipated because need for mold and repeated revisions not in original estimate. 2. Much engineering and research combined planning for laminates are venturing into a "task 2" or "wrapping material for storage" phase. ,, Sanitized Copy Approved for Release 2011/05/04: CIA-RDP78-03642A000700070002-5