SOLVENTLESS CURED RELEASE COATING-FORMING ORGANOPOLYSILOXANE COMPOSITION AND SHEET-FORM SUBSTRATE HAVING CURED RELEASE COATING

摘要

A solventless, cured release coating-forming organopolysiloxane composition comprising (A) 100 parts of an organopolysiloxane fluid having a branched structure and comprising (i) the siloxane unit represented by the formula SiO4/2, (ii) the siloxane unit represented by the general formula R2SiO2/2, and (iii) the siloxane unit represented by the general formula RaR2SiO1/2; (B) 0.5 to 15 parts of a diorganopolysiloxane with the average structural formula RaRc2SiO(RbRcSiO 2/2)n1(Rc2SiO2/2) n2SiRc2Ra; (C) a prescribed quantity of an organohydrogenpolysiloxane; and (D) a hydrosilylation reaction catalyst. Also, a sheet-form substrate that has a cured coating from this solventless, cured release coating-forming organopolysiloxane composition.