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Silicone release coating composition and low release force emulsion silicone release coating for film and paper with cured release coating
Silicone release coating composition and low release force emulsion silicone release coating for film and paper with cured release coating
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机译：有机硅防粘涂料组合物和低固化力乳胶有机硅防粘涂料，用于具有固化防粘涂料的薄膜和纸张
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摘要
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.
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