| abstract |
The catalyst for use in the preparation of polystyrene ethane stone positions of the present invention is (a) a titanium, zirconium, hafnium or subunit fatty acid ester, and a b-diketone or b-catester of general formula (I); independently of the reaction product of a hydrogen atom or an alkyl, aryl, cycloalkyl, alkoxy, aryloxy, hydroxyalkyl, alkoxyalkyl, or hydroxyalkoxyalkyl alkyltube, with a stone complexing agent, and one mercapto a reaction product of oxazolidine of general formula (A) and / or tetrahydro-oxazine of general formula (B), wherein R10 is hydrogen or alkyl-piperium and X is -hydroxyalkyl-piperazine. This catalyst is particularly advantageous for use in the preparation of hot pot pot life, hardenable cavities at room temperature. (I) (A) (B) ŕ |