Patent ID: 9718927
Date: 2017-08-01
CPC Classifications: C08G,C08K,C08L,H01L

Claim:
1. A process for producing a cross-linked silicone polymer, the process comprising the steps of: (a) providing a first siloxane compound, the first siloxane compound comprising a plurality of siloxane repeating units, wherein at least a portion of the siloxane repeating units are cyclosiloxane repeating units, and the cyclosiloxane repeating units are independently selected from the group consisting of cyclosiloxane repeating units conforming to the structure of Formula (XL) wherein R 1 and R 2 are independently selected from the group consisting of alkyl groups, substituted alkyl groups, cycloalkyl groups, substituted cycloalkyl groups, alkenyl groups, substituted alkenyl groups, cycloalkenyl groups, substituted cycloalkenyl groups, heterocyclyl groups, substituted heterocyclyl groups, aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, trialkylsiloxy groups, aryldialkylsiloxy groups, alkyldiarylsiloxy groups, and triarylsiloxy groups; R 20 and R 21 are independently selected from the group consisting of hydrogen, alkyl groups, substituted alkyl groups, alkanediyl groups, substituted alkanediyl groups, cycloalkyl groups, substituted cycloalkyl groups, alkenyl groups, substituted alkenyl groups, alkenediyl groups, substituted alkenediyl groups, cycloalkenyl groups, substituted cycloalkenyl groups, heterocyclyl groups, substituted heterocyclyl groups, aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, trialkylsiloxy groups, aryldialkylsiloxy groups, alkyldiarylsiloxy groups, and triarylsiloxy groups; provided only one of R 20 and R 21 can be hydrogen; and further provided, if one of R 20 and R 21 is selected from the group consisting of alkanediyl groups, substituted alkanediyl groups, alkenediyl groups, and substituted alkenediyl groups, then the other of R 20 and R 21 is also selected from the group consisting of alkanediyl groups, substituted alkanediyl groups, alkenediyl groups, and substituted alkenediyl groups, and R 20 and R 21 are bonded to form a cyclic moiety; R 3 and R 4 are independently selected from the group consisting of haloalkyl groups, aralkyl groups, aryl groups, substituted aryl groups, heteroaryl groups, and substituted heteroaryl groups x is zero or any positive integer; and y is a positive integer from 1 to 6; wherein the first siloxane compound further comprises at least one segment conforming to the structure of Formula (XV) (b) providing a ring-opening catalyst; (c) combining the first siloxane compound and the ring-opening catalyst to produce a reaction mixture; (d) reacting the components in the reaction mixture under conditions such that (i) the ring-opening catalyst opens at least a portion of the cyclosiloxane repeating units in the first siloxane compound to form cross-linking groups and (ii) at least a portion of the cross-linking groups react with other molecules of the first siloxane compound to produce cross-links between molecules thereby forming a cross-linked silicone polymer.