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CROSSLINKING AGENT FOR CROSSLINKABLE SILICONE COMPOSITION WITH LOW PLATINUM CONTENT BASED ON HYDROGENATED SILICONE OIL COMPRISING SI-H UNITS IN CHAIN END AND IN THE CHAIN
CROSSLINKING AGENT FOR CROSSLINKABLE SILICONE COMPOSITION WITH LOW PLATINUM CONTENT BASED ON HYDROGENATED SILICONE OIL COMPRISING SI-H UNITS IN CHAIN END AND IN THE CHAIN
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机译：基于链端和链端含SI-H单元的加氢硅油的低铂含量可交联硅油组合物的交联剂
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摘要
Polyorganosiloxane with at least three silicon-bonded hydrogen atoms is used as a crosslinking agent in a silicone composition that has a viscosity of no more than 1500 mPas at 25 deg C and is crosslinkable by polyaddition in the presence of no more than 80 ppm of a metal catalyst to form a water-repellent release coating. Independent claims are also included for: (1) a silicone composition capable of crosslinking by polyaddition to form a water-repellent release coating, comprising a polyorganosiloxane with at least two silicon-bonded alkenyl groups, a linear polyorganosiloxane of formula (I) with at least three silicon-bonded hydrogen atoms, and no more than 80 ppm of a platinum-group metal catalyst, where the composition has a viscosity of no more than 1500 mPas at 25 deg C; (2) a substrate with a release coating as above. M alpha M' beta D psi D' delta (I) M = (R1)3SiO1/2; M' = Ha(R1)bSiO1/2; a = 1-3; b = 0-3; a+b = 3; D = (R2)2SiO2/2; D' = HR3SiO2/2; alpha , beta = 0-2 provided that beta is not 0; psi , delta = numbers greater than 0; psi / delta = 0-0.4 but no 0; beta / delta = 0.02-0.06.
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机译：具有至少三个与硅键合的氢原子的聚有机硅氧烷用作有机硅组合物中的交联剂，该有机硅组合物在25℃下的粘度不超过1500 mPas，并且在不超过80 ppm的有机硅存在下可通过加聚交联。金属催化剂形成疏水释放涂层。还包括以下独立权利要求：（1）能够通过加聚交联以形成疏水性释放涂层的硅氧烷组合物，其包含具有至少两个与硅键合的烯基的聚有机硅氧烷，式（I）的线性聚有机硅氧烷和至少三个与硅键合的氢原子，和不超过80 ppm的铂族金属催化剂，其中该组合物在25℃下的粘度不超过1500 mPas; （2）具有上述防粘涂层的基材。 MαM′β D psi D′δ（I）M ＝（R 1）3 SiO 1/2; M'＝ Ha（R 1）b SiO 1/2; a = 1-3; b = 0-3; a + b = 3; D ＝（R 2）2 SiO 2/2; D'＝ HR 3 SiO 2/2;如果beta不为0，则alpha，beta = 0-2; psi，增量=大于0的数字; psi / delta = 0-0.4，但不为0; β/增量= 0.02-0.06。
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