公开(公告)号：US5246981A

公开(公告)日：1993-09-21

申请号：US651383

申请日：1991-03-06

申请人： Seiji Kawamoto ,  Keiichi Kamda ,  Shoji Seki

发明人： Seiji Kawamoto ,  Keiichi Kamda ,  Shoji Seki

IPC分类号： C09D5/20 ,  B41N1/14 ,  C08F2/22 ,  C08F291/00 ,  C09D5/02 ,  C09D133/04 ,  C09D133/20 ,  C09D133/26 ,  C09D151/00 ,  C09J7/04 ,  D21H19/00 ,  D21H19/58 ,  D21H27/00 ,  G03C1/60

CPC分类号： G03C1/60 ,  B41N1/14 ,  C08F291/00 ,  D21H19/58 ,  Y10S525/902

摘要： An aqueous emulsion comprising a copolymer having a two-layer structure is produced by polymerizing at least one aqueous vinyl monomer component (II) in the presence of a seed emulsion (I) comprising seeds composed of a copolymer containing 10-50% by weight of (meth)acrylonitrile as a monomer unit. This aqueous emulsion has heat resistance, solvent resistance, and anti-blocking property, and can be used as an undercoating agent, an agent for treating a back side, a binder for diazo photosensitive paper, a binder for an offset master, and the like.