Coating of textile articles where high tear strength and low weight are required, comprises addition-crosslinkable silicone composition comprising two diorganopolysiloxanes, crosslinking agent and hydrosilylation catalyst

摘要

Coating of textile articles comprises applying an addition-crosslinkable silicone composition, comprises a diorganopolysiloxane with two terminal alkenyl groups, a diorganopolysiloxane with one terminal alkenyl group, a crosslinking agent having at least two Si-H atoms, and a hydrosilylation catalyst. Coating of textile articles comprises applying an addition-crosslinkable silicone composition comprises: (A) a diorganopolysiloxane having a viscosity of 50 - 100,000 mPas at 25 deg C and comprises two units of formula (I), units of formula (II) and 0 - 0.3 wt.% of units of formula (III). R = optionally halo- or cyano-substituted 1-18C hydrocarbyl groups free of aliphatic carbon-carbon multiple bonds; R1 = optionally halo- or cyano-substituted 1-10C alkenyl groups optionally bonded to Si through a divalent organic group. (B) is a diorganopolysiloxane having a viscosity of 10 - 100,000 mPas at 25 deg C and comprises one unit of formula (I), units of formula (II) and one unit of formula (IV). (C) is a crosslinking agent that contains at least two silicon-bonded hydrogen atoms and has empirical formula (V). R2 = a group as defined for R; a, b = non-negative integers such that a+b is 0.5 - 3, a is 0 - 2. (D) a hydrosilylation catalyst.