公开(公告)号：US10800867B2

公开(公告)日：2020-10-13

申请号：US14648885

申请日：2013-12-03

申请人： HEXION INC.

发明人： François Simal ,  Nathalie Haveaux ,  Aurélien Laurant

IPC分类号： C08F220/68 ,  C08F218/10 ,  C08F220/18 ,  C08F220/06 ,  C08F220/14 ,  C08F6/00 ,  C08F2/00

摘要： A process for reducing the amount of residual monomer in aqueous polymerization emulsion by using a sequential polymerization steps, The first step consists in adding an emulsion, of vinyl ester of alkyl of C1 to C18 carboxylic acids, to water containing a radical initiator, the second step consists in adding further an emulsion of alkyl acrylate and/or methacrylate, and the third step consists in c) adding to polymeric emulsion, resulting of the steps a) and b), pure liquid acrylate or methacrylate with alkyl chain of C1 to C12.