Patent ID: 6406793
Filing Date: 2002-06-18
Classification: C08L,C09J,Y10T

Abstract:
An addition-reaction silicone pressure sensitive adhesive composition comprising the following components (A) to (F):(A) diorganopolysiloxanes containing alkenyl groups the number of which is on average at least two a molecule, (B) an organopolysiloxane comprising R23SiO0.5 units and SiO2 units in a R23SiO0.5/SiO2 ratio of from 0.6 to 1.3 by mole wherein R2 is an unsubstituted or substituted monovalent hydrocarbon group containing 1 to 10 carbon atoms, (C) an organohydrogenpolysiloxane containing at least two per molecule of silicon-bonded hydrogen atoms, (D) an acetylene alcohol compound represented by the following formula wherein R3 and R4 are each a monovalent hydrocarbon group containing 1 to 8 carbon atoms and R5 is a divalent hydrocarbon group containing 3 to 8 carbon atoms, (E) a silylated acetylene alcohol compound represented by the following formula wherein R3, R4 and R6 are each a monovalent hydrocarbon group containing 1 to 8 carbon atoms and R5 is a divalent hydrocarbon group containing 3 to 8 carbon atoms, and (F) a platinum catalyst.