RELEASE LAYERS AND ARTICLES CONTAINING THEM

    公开(公告)号:US20210332269A1

    公开(公告)日:2021-10-28

    申请号:US17309619

    申请日:2019-12-11

    Abstract: Release layers that can be included in various adhesive tape products and release liners for adhesive layers are provided. The release layer is a cured reaction product of a curable release composition that contains i) a siloxane polymer having at least two hydrolyzable groups and having a weight average molecular weight of at least 1000 Daltons, ii) a crosslinker, iii) a silane additive, iv) a photoacid generator, and v) an optional silicate resin. The crosslinker is a compound of formula Si(OR5)4 or is a compound having at least two silyl groups of formula —Si(R4)x(OR5)3-x where R4 is alkyl or aryl, R5 is alkyl, and the variable xis an integer equal to 0 or 1. The silane additive is a compound having two silyl groups of formula —Si(R6)2(OR7) or a single silyl group of formula —Si(R10) (OR9)2 where R6 is alkyl or aryl, R7 is alkyl, R9 is alkyl, and R10 is alkyl or aryl.

    Platinum-catalyzed Condensation-cure Silicone Systems
    29.
    发明申请
    Platinum-catalyzed Condensation-cure Silicone Systems 审中-公开
    铂催化缩合固化硅酮体系

    公开(公告)号:US20140314985A1

    公开(公告)日:2014-10-23

    申请号:US14366057

    申请日:2012-12-20

    CPC classification number: C08G77/20 C08G77/16 C08L83/04 C09J7/401 Y10T428/1476

    Abstract: Condensation-cure systems comprising at least one silanol-functional polyorganosiloxane and a platinum catalyst are described. The platinum catalysts include Pt(0) complexes, a Pt(II) complexes, and a Pt(IV) complexes. Condensation-cure systems comprising two or more silanol-functional polyorganosiloxanes are described, as are systems comprising a silanol functional polyorganosiloxane in combination with hydride-functional silanes or alkoxy-functional silanes. Articles incorporating cured condensation-cure systems are also disclosed.

    Abstract translation: 描述包含至少一种硅烷醇官能的聚有机硅氧烷和铂催化剂的缩合固化体系。 铂催化剂包括Pt(0)络合物,Pt(II)络合物和Pt(IV)络合物。 描述包含两种或更多种硅烷醇官能的聚有机硅氧烷的缩合固化体系,以及包含与氢化物官能的硅烷或烷氧基官能的硅烷组合的硅烷醇官能的聚有机硅氧烷的体系。 还公开了包含固化的缩合固化体系的制品。

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