Patent ID: 7687591
Filing Date: 2010-03-30
Classification: C08F,C08G,C08L,C09J

Abstract:
1. A solventless pressure sensitive adhesive (PSA) comprising (A) 15 to 40 weight percent of at least one organosiloxane polymer having on average at least two aliphatic unsaturations per molecule; (B) 50 to 80 weight percent of at least one resin having R 3 SiO 1/2 (M units) and SiO 4/2 (Q units) where each R is an independently chosen monovalent hydrocarbon group free from aliphatic unsaturation and comprising 1 to 20 carbon atoms; (C) 2 to 7 weight percent of at least one reactive diluent comprising at least one hydrocarbon compound comprising 8 to 18 carbon atoms and at least one aliphatic unsaturation; (D) at least one Si—H containing crosslinker comprising an organohydrogensilicon compound having on average at least two silicon bonded hydrogen atoms per molecule; (E) at least one hydrosilylation catalyst; and (F) optionally at least one inhibitor.