PURPOSE: To obtain a coating agent appropriate for nonabhesively coating hot plates for cooking, baking molds or frying pans by mixing a polyol-modified polysiloxane and a reactive linear siloxane.
CONSTITUTION: The objective coating agent obtained by mixing (A) a heat- curable polyol-modified polysiloxane obtained by making to react (i) a polysiloxane expressed by formula I [OR1 represents a 1-4C alkoxy group, R2 represents an alkyl and phenyl (a) is 1 to 1.5 and (b) is 0.1 to 0.8] and (ii) a polyhydric alcohol as a polyol (containing three or more hydroxyl groups) containing an ester group expressed by formula II (R7 represents an alkylene or phenylene group or the like and R6 represents groups of formulas III and IV) with (B) a reactive linear polysiloxane expressed by formula V (R3 and R4 represent each methyl and phenyl groups with methyl content of ≥80 mol.%, R5 represents a 1-4C alkyl group and (x)≥0) in an amount of 0.05-4 wt.% per the component A.
HARARUTO RAU
SURISUTEIAN BUAITEMEIYAA
