Patent ID: 8642674
Filing Date: 2014-02-04
Classification: C08G,C08L

Abstract:
1. A method for curing an addition curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 alkenyl groups bonded to silicon atoms per molecule, (B) an organohydrogenpolysiloxane having at least 2 hydrogen atoms bonded to silicon atoms per molecule at an amount such that 0.4 to 10 hydrogen atoms bonded to silicon atoms of this component are present per one alkenyl group in the organopolysiloxane of the component (A), and (C) an effective amount of a platinum complex curing catalyst selected from the group consisting of trimethyl(acetylacetonato)platinum complex, trimethyl(2,4-pentanedionato)platinum complex, trimethyl(3,5-heptanedionato)platinum complex, trimethyl(methylacetoacetato)platinum complex, bis(2,4-pentanedionato)platinum complex, bis(2,4-hexanedionato)platinum complex, bis(2,4-heptanedionato)platinum complex, and bis(3,5-heptanedionato)platinum complex, the method comprising the first step of exposing the composition to UV light having a wavelength of 200 to 400 nanometers at an intensity of 20 to 400 mW/cm the second step of applying the composition obtained in the first step to desired parts by potting and curing the composition.