Patent ID: 9657160
Date: 2017-05-23
CPC Classifications: A61K,A61Q,C08G,C08K,C08L

Claim:
1. An organopolysiloxane gel produced by a process comprising reacting: (1) at least one unsaturated MQ resin comprising units of the formulas wherein R is an identical or different monovalent, optionally substituted hydrocarbon group having 1 to 18 carbon atoms per group, R′ is a monovalent hydrocarbon group capable of hydrosilylation by Si—H groups, with the provisos that the at least one unsaturated MQ resin contains at least 2 R′ groups that the molar ratio of M units to Q units is in a range from 0.5 to 4.0, and the at least one unsaturated MQ resin comprises (CH with (2) at least one Si—H functional organopolysioxane of the formula wherein c is 0 or 1, R is an identical or different monovalent, optionally substituted hydrocarbon group having 1 to 18 carbon atoms per group, a and b are integers, with the proviso that the sum a+b is 66 to 248, that the at least one Si—H functional organopolysiloxane of the formula (I) contains Si-bonded hydrogen in an amount from 0.011 to 0.044 wt. %, and that the number of Si—H groups per molecule on average is greater than 2, or a mixture of (2) the at least one Si—H functional organopolysiloxane of the formula (I) with (2′) Si—H functional organopolysiloxanes of the formula wherein c is 0 or 1, R is an identical or different monovalent, optionally substituted hydrocarbon group having 1 to 18 carbon atoms per group, a and b are integers, with the proviso that the sum a+b is 38 to 248, that the Si—H functional organopolysiloxanes of the formula (I′) contain Si-bonded hydrogen in an amount from 0.045 to 0.35 wt. %, and that if a mixture of (2) and (2′) is used, the weight ratio of (2) to (2′) is greater than 0.2, in the presence of (3) a catalyst which promotes addition at Si-bonded hydrogen onto an aliphatic multiple bond, wherein a mixture of (1) and (2) or a mixture of (1), (2), and (2′) is dispersed in (4) at least one diluent selected from organopolysiloxanes with 2 to 200 Si atoms and organic diluents.