Silicone-coated release liner which, even after exposure to light in the presence of moisture, heat or both, displays release properties of less than 20 g/cm width with respect to pressure-sensitive adhesive tape. The coating contains noble metal, and the silicone polymer has substantially no residual ethylenic unsaturation. The silicone polymer is prepared by pre-reacting polydimethyl siloxane with a noble metal catalyst before adding polymethylhydrosiloxane crosslinker.
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机译：涂有有机硅的离型纸，即使在暴露于湿气，热量或两者同时存在的情况下暴露，其离型性能也相对于压敏胶粘带小于20 g / cm。该涂层包含贵金属，并且该硅氧烷聚合物基本上没有残留的烯键式不饱和键。通过在添加聚甲基氢硅氧烷交联剂之前，使聚二甲基硅氧烷与贵金属催化剂预反应来制备有机硅聚合物。
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