公开(公告)号：US5171768A

公开(公告)日：1992-12-15

申请号：US779665

申请日：1991-10-21

申请人： Susan M. Prentice ,  Ramesh N. Gujarathi ,  Sun-Lin Chen

发明人： Susan M. Prentice ,  Ramesh N. Gujarathi ,  Sun-Lin Chen

IPC分类号： C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F2/44 ,  C08F212/00 ,  C08F212/06 ,  C08F220/00 ,  C08F220/10 ,  C08F236/04 ,  C08F279/02

CPC分类号： C08F279/02

摘要： The present invention relates to a free radical emulsion polymerization process. The latex is prepared by polymerizing (a) at least one conjugated diene, (b) at least one non-carboxylic vinyl aromatic or aliphatic comonomer selected from the group consisting of styrene, .alpha.-methyl styrene, p-methyl styrene, vinyl toleuene, acrylonitrile, methacrylonitrile, vinylidene chloride, ethyl acrylate, butyl acrylate, vinyl pyridine, methylmethacrylate, hexylacrylate, 2-ethyl hexyl acrylate or mixtures thereof, and (c) at least one ethylenically unsaturated carboxylic acid monomer selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, 3-carboxyethylacrylate, itaconic acid or mixtures thereof. The process of the present invention is characterized by (a) initially polymerizing the non-carboxylic comonomer in the presence of the unsaturated carboxylic acid and in the absence of any conjugated diene to a conversion of 3 to 12 percent to form a partially polymerized latex; and thereafter (b) copolymerizing the conjugated diene with the unreacted non-carboxylic comonomer in the partially polymerized latex. The present process mitigates the formation of codimers of the conjugated diene and non-carboxylic comonomer. The present process also provides a latex having unique film forming characteristics and polymer morphology leading to unique film stiffness and stress-strain relationship.

公开(公告)号：US4609434A

公开(公告)日：1986-09-02

申请号：US659735

申请日：1984-10-11

申请人： Bettye W. Greene ,  Sun-Lin Chen

发明人： Bettye W. Greene ,  Sun-Lin Chen

IPC分类号： C08F2/24 ,  C08F2/26 ,  C08F2/44 ,  D21H17/42 ,  D21H19/58 ,  D21H3/48

CPC分类号： D21H17/42 ,  C08F2/24 ,  D21H19/58

摘要： A phosphorus modified latex composition useful in the coating of substrates with inorganic fillers. A latex particle having phosphorus groups intimately bound to the particle's surface formed by the emulsion polymerization of a latex with a phosphorus compound. Also a method of preparing a composite sheet and a paper coating latex with the phosphorus modified latex is provided.

摘要翻译： 一种磷改性胶乳组合物，可用于用无机填料涂覆底物。 具有与通过胶料与磷化合物的乳液聚合形成的颗粒表面紧密结合的磷基团的胶乳颗粒。 还提供了制备复合片材和具有磷改性胶乳的纸涂布胶乳的方法。

公开(公告)号：US4506057A

公开(公告)日：1985-03-19

申请号：US562886

申请日：1983-12-19

申请人： Bettye W. Greene ,  Sun-Lin Chen

发明人： Bettye W. Greene ,  Sun-Lin Chen

IPC分类号： C08L9/08 ,  C08F2/24 ,  C08F2/26 ,  C08F246/00 ,  C08K5/49 ,  C08K5/52 ,  C08L7/00 ,  C08L21/02 ,  D21H17/42 ,  D21H19/44 ,  D21H19/58 ,  C08K5/50

CPC分类号： C08F2/24 ,  D21H17/42 ,  D21H19/58

摘要： A phosphorus modified latex composition useful in the coating of substrates with inorganic fillers. A latex particle having phosphorus groups intimately bound to the particle's surface formed by the emulsion polymerization of a latex with a phosphorus compound. Also a method of preparing a composite sheet and a paper coating latex with the phosphorus modified latex is provided.

摘要翻译： 一种磷改性胶乳组合物，可用于用无机填料涂覆底物。 具有与通过胶料与磷化合物的乳液聚合形成的颗粒表面紧密结合的磷基团的胶乳颗粒。 还提供了制备复合片材和具有磷改性胶乳的纸涂布胶乳的方法。