- 专利标题: COATING SOLUTION AND FLUORORUBBER-METAL LAMINATED SHEET USING SAME
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申请号: EP20896837.0申请日: 2020-11-10
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公开(公告)号: EP4070893A1公开(公告)日: 2022-10-12
- 发明人: WATANABE, Isao , TAKEKAWA, Daiki
- 申请人: NOK Corporation
- 申请人地址: JP Minato-ku Tokyo 105-8585 12-15, Shibadaimon 1-chome
- 代理机构: Beckmann, Claus
- 优先权: JP2019221059 20191206
- 国际公布: WO2021111819 20210610
- 主分类号: B05D7/24
- IPC分类号: B05D7/24 ; C09D115/02 ; C09D127/12 ; C09D163/00 ; C09K3/10 ; B32B15/082 ; F16J15/08 ; C09D7/63
摘要:
A coating solution comprising an organic solvent solution containing polyol-crosslinkable fluororubber, a polyol vulcanizing agent, and N-phenyl-3-aminopropyltrialkoxysilane, preferably a coating solution further containing an epoxy resin in addition thereto, and a fluororubber metal laminated sheet formed by applying the above coating solution to a metal sheet, followed by vulcanization. The coating solution can not only impart stability over time to the fluororubber paste, but also improve the interlayer adhesion and abrasion resistance of the fluororubber metal laminated sheet. Therefore, when it is used as a cylinder head gasket, it is possible to cope with the reduction in rigidity due to the increase in combustion pressure of the engine, and with weight saving. As a result, it will greatly contribute to the improvement of fuel efficiency of automobiles.
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