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    • 3. 发明公开
    • SILICONE RELEASE COATING COMPOSITION AND LOW RELEASE FORCE EMULSION SILICONE RELEASE COATING FOR FILMS AND PAPERS HAVING CURED RELEASE COATING
    • 乳液低功耗新闻公报胶片和相纸有淬过火的防粘涂层的硅氧烷剥离涂料组合物及有机硅防粘涂层
    • EP3161083A1
    • 2017-05-03
    • EP14895820.0
    • 2014-06-27
    • Dow Corning (China) Holding Co. Ltd.Dow Corning Taiwan Inc
    • HUANG, FumingKUO, Chung MienWANG, Yang
    • C09D183/04C09D183/05C09D183/07C08G77/10C09J7/02C08G77/12C08G77/20
    • C09D183/04C08G77/12C08G77/20C08G77/80C09D5/022D21H19/12C08K5/56C08L83/00
    • This invention relates to a silicone release coating composition and a low release force emulsion silicone release coating for films and papers having cured release coating, providing a silicone release coating composition,comprising: (A) 100 weight parts of an organopolysiloxane fluid having a viscosity at 25℃ of 50 to 10,000 mPa·sand alkenyl content of 0.10 to 3.0wt%; (B) 0.5-40 weight parts of a diorganopolysiloxane represented by the average structural formula (1),having a viscosity at 25℃ of 5,000 to 150,000 mPa ·s and alkenyl content of 0.05 to 0.80 wt%: Rc 3SiO(RbRcSiO2/2)n1(Rc 2SiO2/2)n2SiRc 3 (1) wherein Rb is alkenyl having 2 to 8 carbon atoms; Rc is alkyl group having 1 to 8 carbon atoms or phenyl;n1 is a number that provides alkenyl content of 0.05 to 0.80 wt%;n2 is a number with a value of at least 1; and n1 + n2 is a number that provides this component with a viscosity at 25℃ of 5,000 to 150,000 mPa ·s; (C) an organohydrogenpolysiloxane that has a viscosity at 25℃ of 1 to 1,000 mPa ·s and that has at least two silicon-bonded hydrogen atoms in each molecule,and has alkyl group having 1 to 8 carbon atoms or phenyl group for its silicon-bonded organic groups, in an amount sufficient to provide a value of 0.8:1 to 5 :1 for the molar ratio of silicon- bonded hydrogen atoms in this organohydrogenpolysiloxane to the alkenyl groups in components (A) and (B); (D) a hydrosilylation reaction catalyst in a catalytic amount; (E) surfactant; (F) water; and (G) inhibitor.
    • 本发明涉及一种有机硅剥离涂层组合物和用于具有固化的剥离涂层胶片和相纸的低剥离力乳液有机硅剥离涂层,提供了有机硅剥离涂层组合物,包括:(A)流体具有的粘度的有机聚硅氧烷100重量份 的50至10,000mPa·沙烯的12:10含量至3.0wt%的25℃; (B)由平均结构式(1)表示的二有机聚硅氧烷的0.5-40重量份,具有粘度在5,000至150,000毫帕·秒和0.80%(重量)链烯基含量为25℃至12时05分:RC 3的SiO(RbRcSiO2 / 2 )N1(RC 2SiO2 / 2)n2SiRc 3(1)其中R b是具有链烯基为2〜8个碳原子; R c为具有1至8个碳原子或苯基烷基; n1为一个数确实提供的0:05烯含量至0.80%(重量); n 2是具有至少1的值的数; 和N1 + N2是一个数字确实在5000 25℃时提供一个具有粘度此组件150,000毫帕·秒; (C)有机氢聚硅氧烷那样具有在1〜1000毫帕·秒25℃的粘度,也具有在每个分子中有至少两个硅键合的氢原子,并具有用于其硅氧烷1至8个碳原子或苯基烷基 在键合的有机基团在量足以提供0.8的值:1至5:1的摩尔硅键合的氢原子的在该有机氢聚硅氧烷的链烯基中组分比率(A)和(B); (D)催化量的氢化硅烷化反应催化剂; (E)表面活性剂; (F)水; 及(G)抑制剂。