| 摘要 |
A preparation for the abhesive coating of baking tins, baking molds, frying pans, metal pots and the like is disclosed. The preparation which comprises predominantly a heat-curable, polyol-modified polysiloxane A and 0.05 to 4% by weight, based on polysiloxane A, of a linear siloxane B that is capable of reacting with polysiloxane A. The modified polysiloxane A is obtained by reaction of a polysiloxane A1 of the general formula. <IMAGE> wherein OR1 is an alkoxy group, derived from a primary or scondary alcohol with 1 to 4 carbon atoms, R2 is alkyl and/or phenyl, a=1 to 1.5, b=0.1 to 0.08, with a multihydric alcohol A2, with the characteristic feature that, as multihydric alcohol A2, is used an ester group-containing polyo of the general formula <IMAGE> which can be obtained by the esterification of 1 mole of dicarboxylic acid HOOC-R7-COOH with 2 moles of alcohol of formula R6OH, the R6 groups in the molecule being the same or different and representing the groups <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> wherein R7 is an alkylene, cycloalklene or phenylene group, and the polyol containing the ester groups has at least three hydroxyl groups.
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