Shin-etsu Chemical Co., Ltd.

Takamasa Toyoda

Kenichi Isobe

Shinji Irifune

Toshio Ohba

Masahiko Ogawa

Hideyuki Itoh

Hideyuki Itou

A solventless curable silicone release composition contains (A) a branched organopolysiloxane having a vinyl group attached to a silicon atom at an end of its molecular chain, (B) an organohydrogenpolysiloxane having at least three SiH groups in a molecule, and (C) a platinum group metal catalyst. The composition is easily applicable to a thin gage and cures into a releasable silicone coating ensuring light release at high speeds. A release sheet having the cured coating formed thereon has improved release characteristics.

Curable silicone release composition and release sheet

There is provided a curable organopolysiloxane composition comprising (A) an organopolysiloxane containing, in its molecule, at least two groups represented by the general formula (1):

Curable organopolysiloxane composition

A curable organopolysiloxane composition which comprises an organopolysiloxane having at least two vinyl groups each joined to silicon atoms in the molecule and a defined viscosity, an organohydrogenpolysiloxane of a defined formula having at least two hydrogen atoms joined to silicon atom or atoms, and a catalytic amount of a platinum group catalyst is described. This composition has good curability and is capable of yielding a cured film which has good adhesion to plastic film or paper substrates.

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Annaka, Japan

Takamasa Toyoda