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    • 6. 发明授权
    • Release modifier and release coating organopolysiloxane composition
    • 释放改性剂和脱模涂层有机聚硅氧烷组合物
    • US08933177B2
    • 2015-01-13
    • US13003427
    • 2009-07-09
    • Seiji HoriTakateru YamadaChung Mien Kuo
    • Seiji HoriTakateru YamadaChung Mien Kuo
    • C08L83/04C08G77/44C09D183/04
    • C08G77/44C09D183/04Y10T428/31663C08L83/00
    • To provide a release modifier which provides a heavy release force to a cured release layer of silicone coating composition. The release modifier comprises an organopolysiloxane resin-organopolysiloxane condensation reaction product that is obtained by the condensation reaction of (a1) 100 weight parts of MQ-type organopolysiloxane resin in which the molar ratio of the M unit to the Q unit is 0.6 to 1.0 and the content of the hydroxyl group or alkoxy group is 0.3 to 2.0 weight % with (a2) 20 to 150 weight parts of chain-form diorganopolysiloxane that has an average degree of polymerization of 100 to 1000 and at least one hydroxyl group or alkoxy group; this organopolysiloxane resin-organopolysiloxane condensation reaction product preferably has a prescribed hydroxyl group content.
    • 提供一种释放调节剂,其向硅氧烷涂料组合物的固化释放层提供重的释放力。 脱模改性剂包含通过(a1)100重量份M单元与Q单元的摩尔比为0.6〜1.0的MQ型有机聚硅氧烷树脂的缩合反应得到的有机聚硅氧烷树脂 - 有机聚硅氧烷缩合反应产物,以及 羟基或烷氧基的含量为(a2)20〜150重量份平均聚合度为100〜1000,至少一个羟基或烷氧基的链状二有机聚硅氧烷为0.3〜2.0质量% 该有机聚硅氧烷树脂 - 有机聚硅氧烷缩合反应产物优选具有规定的羟基含量。