Procedure for the preparation of polymer powders using...

Details Procedure for the preparation of polymer powders using... Procedure for the preparation of polymer powders using...

C - Chemistry, Metallurgy

08

F

402/397

C08F 2/18 (2006.01) C08F 2/38 (2006.01)

Patent

CA 2202926

The procedure for manufacturing co-polymer powders using polymerisation in a suspension concentrate of at least one polymerizable monomer in suspension is conducted in the presence of at least one free radical initiator as a catalyst, at least one suspension agent and, in addition, at least one free radical inhibitor scavenger and at least one complex forming agent. This procedure reduces and even suppresses parasitic polymerization in emulsion, and thus increases yield.

Le procédé de fabrication de poudres de (co)polymère par polymérisation en suspension aqueuse d'au moins un monomère polymérisable en suspension est conduit en présence d'au moins un générateur de radicaux libres comme catalyseur, d'au moins un agent de suspension et, en outre, d'au moins un inhibiteur capteur de radicaux libres et d'au moins un agent complexant. Ce procédé permet de réduire et même de supprimer la polymérisation parasite en émulsion et donc d'augmenter le rendement obtenu.

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