Radiation-curable organopolysiloxane
    36.
    发明授权
    Radiation-curable organopolysiloxane 失效
    可辐射固化的有机聚硅氧烷

    公开(公告)号:US5436281A

    公开(公告)日:1995-07-25

    申请号:US242394

    申请日:1994-05-13

    摘要: Proposed is an improved radiation-curable organopolysiloxane composition capable of giving a cured surface film on a substrate surface which exhibits excellent releasability against sticky substances. The composition is obtained by combining two kinds of (meth)acryloxyalkyl-containing organopolysiloxanes in a specified weight proportion, of which one has a relatively large degree of polymerization but contains only a relatively small amount of the silicon-bonded (meth)acryloxyalkyl groups while the other has a relatively small degree of polymerization but contains a relatively large amount of the silicon-bonded (meth)acryloxyalkyl groups. By virtue of this unique formulation, the surface-release sheet provided with a cured surface film of this organopolysiloxane composition and attached to a sticky surface for temporary protection is safe from generation of a peeling noise which is unavoidable in the prior art when a surface-release sheet is peeled off from the sticky surface at a high peeling velocity, especially, when the peeling resistance is great.

    摘要翻译: 提出了能够在基材表面上赋予固化的表面膜的改进的可辐射固化的有机基聚硅氧烷组合物,其对粘性物质具有优异的脱模性。 通过组合两种(甲基)丙烯酰氧基烷基的有机聚硅氧烷以特定重量比例组合,其中聚合度相对较高但仅含有相对少量的与硅键合的(甲基)丙烯酰氧基烷基,而 另一方面具有相对较小的聚合度,但含有相对大量的与硅键合的(甲基)丙烯酰氧基烷基。 由于这种独特的配方,具有这种有机基聚硅氧烷组合物的固化的表面膜并附着在粘性表面上用于临时保护的表面剥离片材就不会产生现有技术中不可避免的剥离噪音, 剥离片以高剥离速度从粘性表面剥离,特别是耐剥离性大时,

    Organopolysiloxane composition for the production of release paper
    37.
    发明授权
    Organopolysiloxane composition for the production of release paper 失效
    用于生产脱模纸的有机聚硅氧烷组合物

    公开(公告)号:US5372890A

    公开(公告)日:1994-12-13

    申请号:US84972

    申请日:1993-07-02

    摘要: The invention provides organopolysiloxane compositions for a releasable substrate which are superior in curability, anti-static property, oil resistance, and slipperiness, and provide a good releasability to the treated objects, said composition comprising (1) 100 parts by weight of an organopolysiloxane which comprises at least two alkenyl groups and 5 to 50 mol % of a chemical unit expressed by formula (I) ##STR1## (2) 1 to 100 parts by weight of an organohydrogen polysiloxane which comprises at least three hydrogen atoms bonded to silicon atoms per molecule, and (3) a catalytic amount of platinum or platinum compound.

    摘要翻译: 本发明提供了一种可释放基材的有机聚硅氧烷组合物,其固化性,抗静电性,耐油性和滑爽性优异,并且为处理物提供了良好的剥离性,所述组合物包含(1)100重量份的有机聚硅氧烷, 包括至少两个烯基和5至50mol%由式(I)表示的化学单元(I)(2)1至100重量份的有机氢聚硅氧烷,其包含至少三个与 每分子硅原子,和(3)催化量的铂或铂化合物。