A process for the production of delayed action tin catalysts

Details A process for the production of delayed action tin catalysts A process for the production of delayed action tin catalysts

B - Operations, Transporting

01

J

B01J 31/12 (2006.01) B01J 27/055 (2006.01) B01J 27/135 (2006.01) C08G 18/24 (2006.01)

Patent

CA 2352972

The present invention relates to a novel process for the production of delayed action tin catalysts, which can be used in the preparation of polyurethane. The process comprises reacting a dialkyltin dihalide with an alkali metal sulfide, to yield the corresponding 2,2,4,4-tetrakis(alkyl)-1,3,2,4-dithia-distannetane catalyst.

La présente invention concerne un nouveau procédé de production de catalyseurs stanniques à action différée pouvant être utilisés dans la préparation de polyuréthanne. Le procédé consiste à faire réagir un dihalogénure de dialkyle stannique avec un sulfure de métal alcalin afin de produire le catalyseur au 2,2,4,4-tétrakis(alkyl)-1,3,2,4-dithia-distannetane correspondant.

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