公开(公告)号：US20170260322A1

公开(公告)日：2017-09-14

申请号：US15513460

申请日：2015-09-22

申请人： EVONIK DEGUSSA GMBH

发明人： Kristen Elaine MINNICH ,  Marcelo RUFO ,  Gamini Ananda VEDAGE

IPC分类号： C08G59/50 ,  C07C251/08 ,  C09D163/00 ,  C07C249/02

CPC分类号： C08G59/5033 ,  C07C249/02 ,  C07C251/08 ,  C08G59/50 ,  C09D163/00

摘要： Ketimines of benzylated polyamines and MEK are disclosed. The ketimines can be used as an epoxy curing agent and impart improved potlife, and enhanced blush and chemical resistance of cured epoxy coatings.

公开(公告)号：US20170240691A1

公开(公告)日：2017-08-24

申请号：US15439293

申请日：2017-02-22

申请人： EVONIK DEGUSSA GMBH

发明人： Shiying ZHENG ,  Gamini Ananda VEDAGE ,  Marcelo RUFO ,  Daniel Iliev TOTEV ,  Michael COOK

IPC分类号： C08G59/50 ,  C07C209/68 ,  C07C211/01

CPC分类号： C08G59/5033 ,  C07C209/68 ,  C07C211/01 ,  C08G59/502 ,  C08G59/623 ,  C08G73/0206 ,  C09D163/00

摘要： Compositions and curing agents comprising a benzylated Mannich base composition. The benzylated Mannich base composition includes a reaction product of (a) a substituted phenolic compound having at least one substituent of formula (I): wherein R1 is each independently a linear or branched alkyl group having 1 to 4 carbon atoms, and R2 is hydrogen, methyl, ethyl or phenyl, with (b) a benzylated polyalkylene polyamine (II): wherein RA is substituted or unsubstituted benzyl; RB is each independently RA, or a hydrogen atom, or a group selected from C1-C16 linear, cyclic, and branched alkyl, alkenyl, and alkaryl groups; X, Y, and Z are independently selected from C2-C10 alkylene, and cycloalkylene groups; y is an integer from 0 to 7, and z is an integer from 0 to 4; and, optionally, (c) a multifunctional amine. Amine-epoxy compositions and articles produced from these compositions are also disclosed.