Patent ID: 8967888
Filing Date: 2015-03-03
Classification: C08G,C08L,G02B,H01R

Abstract:
1. A method of making a dry silicone gel by thiol-ene chemistry, comprising: providing a base polymer having a vinyl-silicone group, a crosslinker having thiol groups, and an initiator; providing heat or ultraviolet light; and reacting the base polymer and crosslinker in the presence of the initiator to form the dry silicone gel, wherein the dry silicone gel comprises one or more of the following properties: a) a Shore 000 hardness between 100 g and 300 g; b) a stress relaxation between 40% and 60% when the gel is subjected to a deformation of 50% of its original size; c) a compression set between 4% and 20% after 50% strain has applied to the gel for 1000 hours at 70° C.; and d) less than 10% oil bleed out after being under compression of 1.2 atm for 60 days at 60° C.