| 摘要 |
Catalysts containing tin complexes such as dibutyltin bis(acetylacetonate), useful as curing catalysts for room temperature vulcanizable compositions, are prepared by the reaction of a dialkyltin oxide with a dione and a polyalkoxysilane at a temperature in the range of about 20 DEG -80 DEG C. At least 2 moles of dione and preferably at least 2 moles of polyalkoxysilane are employed per gram-atom of tin. The polyalkoxysilane removes water of reaction, driving the reaction to completion.
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