EMULSION POLYMERISATION METHOD Russian patent published in 2010 - IPC C08G69/16 

Abstract RU 2393176 C1

FIELD: chemistry.

SUBSTANCE: invention relates to polymer synthesis and specifically to a polyamide synthesis method through emulsion polymerisation of caprolactam. The method involves preparation a reaction mass in form an emulsion of caprolactam and an initiator in liquid polyethylsiloxane, heating, holding, cooling and separation of the polymer granules formed. The reaction mass is heated in two steps - first to 90-100°C for 1.5-2 hours, subsequently holding for 3-4 hours, and then to 210-215°C for 1.5-2 hours and holding the reaction mass for 18-22 hours at that temperature before cooling.

EFFECT: method enables to obtain polyamide in form of granules right away and the polyamide can be processed into fibre.

1 cl, 8 ex, 1 tbl

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RU 2 393 176 C1

Authors

Kolobkov Aleksandr Sergeevich

Bazarov Jurij Mikhajlovich

Mizerovskij Lev Nikolaevich

Silant'Eva Valentina Gennad'Evna

Dates

2010-06-27Published

2009-03-13Filed