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    • 15. 发明授权
    • Radiation-curable silicone release compositions
    • 可辐射固化的硅氧烷防粘组合物
    • US5543231A
    • 1996-08-06
    • US554870
    • 1995-11-07
    • William E. KidonMichael D. HilstonThanh Nguyen
    • William E. KidonMichael D. HilstonThanh Nguyen
    • C08F2/48C08F290/14C09J7/02D21H27/00B32B9/04C08L83/07
    • C09J7/0228C08F290/148D21H27/001C09J2203/334C09J2205/31C09J2483/005Y10T428/31663
    • A radiation-curable silicone release composition is described which comprises (A) from about 2% to about 7% by weight of an organopolysiloxane containing acryloxy groups, methacryloxy groups, or mixtures thereof; (B) from about 90% to about 98% by weight of at least one acrylated or methacrylated organic polyhydroxy compound or polyamino compound; and (C) from 0% to about 5% by weight of a photoinitiator. In a preferred embodiment, (B) comprises a mixture of (i) at least one acrylated or methacrylated organic polyhydroxy compound and (ii) at least one acrylated or methacrylated polyamino compound. A method of producing silicone release-coated substrates, the release-coated articles thus produced and multilayer articles or constructions incorporating a silicone-release layer also are described. The release coated papers and the constructions embodying such release coated papers of the invention exhibit improved and desirable dimensional stability and remain flat under a variety of service conditions.
    • 描述了可辐射固化的有机硅剥离组合物,其包含(A)约2重量%至约7重量%的含有丙烯酰氧基,甲基丙烯酰氧基或其混合物的有机聚硅氧烷; (B)约90%至约98%重量的至少一种丙烯酸酯化或甲基丙烯酸酯化的有机多羟基化合物或聚氨基化合物; 和(C)0%至约5%重量的光引发剂。 在优选的实施方案中,(B)包含(i)至少一种丙烯酸酯化或甲基丙烯酸酯化的有机多羟基化合物和(ii)至少一种丙烯酸酯化或甲基丙烯酸酯化的聚氨基化合物的混合物。 还描述了制造有机硅剥离基材的方法,如此制备的剥离涂层制品以及结合硅氧烷剥离层的多层制品或结构。 实施本发明的这种脱模涂布纸的脱模涂布纸和结构表现出改进和期望的尺寸稳定性并且在各种使用条件下保持平坦。