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    • 7. 发明授权
    • Controlled release coating comprising blend of silicone polymer and
adhesion promoter
    • 控制释放涂层包括硅氧烷聚合物和粘合促进剂的混合物
    • US6020412A
    • 2000-02-01
    • US985098
    • 1997-12-04
    • Kenneth J. MuschelewiczRobert G. Posey
    • Kenneth J. MuschelewiczRobert G. Posey
    • C08L83/04C09D183/04C09J7/02C08K5/09
    • C09J7/0225C09D183/04C08L83/04C09J2483/005
    • A reclaimable release coating composition is provided which includes a blend of an adhesion promoter and a silicone release agent which may be applied from an aqueous solution, dispersion or emulsion. The components form regions of adhesion promoting sites disrupted by regions of release sites on the surface of a release backing substrate coated with the composition. The different regions are substantially homogeneously distributed across the entirety of the release surface. When used as a release coating for a backing to protect an adhesive, a controlled release force of a predictable value may be obtained by providing a known weight ratio of adhesion promoter to silicone release agent in the coating composition. A substantially linear relationship is also provided between the release force required to peel a non-silicone adhesive from the release coating surface, and the weight ratio of vinyl-functional polyorganosiloxane oil to hydrogen-functional siloxane crosslinker in the release agent, such that a consistent, uniform and repeatable release force from the surface may be obtained.
    • 提供了一种可回收剥离涂料组合物,其包括可从水溶液,分散体或乳液中施加的粘合促进剂和有机硅脱模剂的共混物。 组分形成由涂覆有组合物的剥离背衬基材的表面上的释放位点的区域破坏的粘附促进位点的区域。 不同的区域基本均匀地分布在整个释放表面上。 当用作背衬的防粘涂层以保护粘合剂时,可以通过在涂料组合物中提供已知的粘合促进剂与硅氧烷脱模剂的重量比来获得可预测值的控制释放力。 在从脱模涂层表面剥离非硅氧烷粘合剂的释放力和脱模剂中的乙烯基官能聚有机硅氧烷油与氢官能硅氧烷交联剂的重量比之间也提供了基本上线性的关系,使得一致 ,可以获得来自表面的均匀且可重复的释放力。