~.A~TheEngineering Society~ ForAdvancing Mobility~ LandSeaAirandSpace® 400COMMONWEALTH DRIVEWARRENDALE, PA15096 r 880028 ANewPolyacrylic Elastomer Cure SystemforAutomatic Transmission Fluid(ATF)HoseApplication KiyoshiHosoya, Takashi Nakagawa, andShigeru Yagishita NipponZeonCompany, Ltd. International CongressandExposition Detroit.Michigan February29·March 4.19BBDownloaded from SAE International by University of Birmingham, Monday, August 20, 2018Theappearance 01thecodeatthebottomofthefirstpage01thispaperindicates SAE'sconsentthatcopiesofthepapermaybemadeforpersona! orintern~!use,or forthepersonal orinternaluseofspecificclients.Thisconsentisgivenonthecon­ dition,however, thatthecopierpaythestatedperarticlecopyfeethrough the Copyright Clearance Center,lnc.,Operations Center,P.O.Box765,Schenectady, N.Y.12301,lorcopying beyondthatpermitted bySections 107or108oftheU.S. Copyright Law.Thisconsent doesnotextendtootherkindsofcopying suchas copying forgeneral distribution, foradvertising orpromotional purposes, for creating newcollective works,orforresale. Paperspublished priorto1978mayalsobecopiedataperpaperfeeof$2.50 undertheabovestatedconditions. SAEroutinely stocksprintedpapersforaperiodofthreeyearsfollowing dateof publication. DirectyourorderstoSAEOrdp,rDepartment. ToobtainQuantity reprintrates.permission toreprintatechnical paperorper· mission tousecopyrighted SAEpublications inotherworks.contact theSAE Publications Division. AllSAtpape,sa'e allSlraCled aMonde.M on 1MSA£;GlollalMoll,J'ly D.iI.lIlJSe SAl:GLOGAL "'OGILITY DATAGASl: Nopartofthispublication maybereproduced inanyform,in anelectronic retrieval systemorotherWise, without theprior writtenpermission ofthepublisher. ISSNOl48·7191 Copyright ©1988Society01Automotive Engineers,lnc. Positions andopinions advanced Inthispaperarethoseof theauthor(s) andnotnecessarily thoseofSAE,Theauthor issolelyresponsible forthecontentofthepaper,Aprocess isavailable bywhichdiscussions wJIIbeprintedwiththe paperIfItispublished inSAETransactions. Forpermission topublishthispaperinfullorInpart,contBcttheSAE PUbJlcations Division.Persons wishingtosubmitpaperstobeconsidered for presentation orpublication throughSAEshOUldsendthe manuscript ora300wordabstractofaproposed manus. criptto:Secretary, Engineering ActivityBoard,SAE. PrintedinU.S.A.Downloaded from SAE International by University of Birmingham, Monday, August 20, 2018880028 ANew Polyacrylic Elastomer Cure SystemforAutomatic Transmission Fluid(ATF)HoseApplication KiyoshiHosoya, Takashi Nakagawa, andShigeru Yagishita NipponZeonCompany, ltd. ABSTRACT Thispaperpresents thedevelopment ofanewisocyanuric acid(lCA)non-post curevulcanizing system forpolyacrylic elastomers whichcontain epoxygroups as curesitesandtheirapplication forATF Hose. TherCA-based curesystem consists ofisocyanuric acidwithanoniumsalt accelerater andaureaderivative retarder. Thiscuresystem exhibits good processability during mixing, good storage stability ofthemixedstockand goodsteamcureproperties. Thevulcani zatesexhibit good physical properties, excellent compression setwithout postcure,hot waterresistance, lowmetalcorrosion andATFresistance, without sacrificing thedistinct advantages ofapolyacrylic elastomer. Theverygoodcharacteristics obtained withthiscuresystem for polyacrylic elastomers makethemideally suited forATFhose. TOCOPEwiththepublic demand for environmental protection fromexhaust gas andalsotomeettheconsumer requirements forbetter quality and higher fuelefficiency ofcars,the automotive industry hasrecently madea series ofinnovations. Amongtheseare exhaust gascleaning devices, front-wheel drive system, automatic transmission system, electronically controlled fuel injection system andturbo-charged engine system, etc. Lighter andsmaller automobiles arebeing marketed. Thespaceoftheengine compartment hasbecome moreandmore compact, requiring better heat-resistant properties oftherubber components usedinandaround theengine compartment. InJapanthenumber ofpassenger cars with