发明名称 |
Method for improving the adhesion of elastomers to a coated substrate |
摘要 |
A method for improving the adhesion of elastomers derived from compositions which are crosslinked by a condensation reaction and which are based on diorganopolysiloxanes containing rod-shaped copolymers formed by the free-radical copolymerization of styrene and (meth)acrylic acid ester in the presence of the diorganopolysiloxanes, to an undercoating consisting of an epoxy resin and pitch or tar, which comprises applying a primer having SiC-bonded organic groups to the undercoating prior to the application of the crosslinkable composition, in which the primer consists of a solution of (a) a copolymer of a (meth)acrylic acid ester free of silicon atoms and a (meth)acryloxyalkylsilane containing at least one SiOC-bonded monovalent organic group; and (b) a silane which contains a SiC-bonded organic group having at least one amino or imino group and which contains at least one SiOC-bonded monovalent organic group and/or a partial hydrolyzate of such silane in an organic solvent.
|
申请公布号 |
US4637958(A) |
申请公布日期 |
1987.01.20 |
申请号 |
US19850720466 |
申请日期 |
1985.04.05 |
申请人 |
WACKER-CHEMIE GMBH |
发明人 |
WEGEHAUPT, KARL-HEINRICH;PFEFFER, HANS-RUDOLF |
分类号 |
C08J5/12;C08J7/04;C09D5/16;C09D143/04;C09D151/08;(IPC1-7):B32B15/08;C09J5/04 |
主分类号 |
C08J5/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|