公开(公告)号：US4362845A

公开(公告)日：1982-12-07

申请号：US329070

申请日：1981-12-09

申请人： Kazumasa Kamata ,  Kazuo Kishida ,  Kazuo Ueda ,  Norihisa Osaka

发明人： Kazumasa Kamata ,  Kazuo Kishida ,  Kazuo Ueda ,  Norihisa Osaka

IPC分类号： C08L27/00 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L27/06 ,  C08L51/00 ,  C08L51/02 ,  C08L51/04

CPC分类号： C08L27/06 ,  C08L51/00 ,  Y10S525/902

摘要： A composition with high impact resistance and little fish eyes content, comprising 97 to 60 parts by weight of a polyvinyl chloride-base resin and 3 to 40 parts by weight of a graft copolymer obtained by the three-stage graft-polymerization of 65 to 25 parts by weight of a monomer combination (B) comprising 12 to 57% by weight of methyl methacrylate, 1 to 24% by weight of at least one of alkyl acrylates having a C.sub.1-8 -alkyl group, 80 to 40% by weight of styrene and 0 to 3% by weight of a polyfunctional crosslinking agent having one or more alkyl groups in the molecule onto 35 to 75 parts by weight of a butadiene-base elastomer (A) containing 30% by weight or more of 1,3-butadiene units, said three-stage graft polymerization being carried out in the following way: at first at least one member selected from the group consisting of electrolytes and carboxyl-containing polymer latices is added to the reaction system; then in the first stage monomer mixture consisting of major amount of methyl methacrylate and minor amount of an alkyl acrylate or acrylates, which has a proportion of 50 to 90% by weight based on total weight of methyl methacrylate and alkyl acrylate or acrylates, and, if included in said monomer combination, a polyfunctional crosslinking agent are graft-polymerized; in the second stage, styrene is graft-polymerized; and in the third stage, the remaining 10 to 50% by weight of methyl methacrylate and an alkyl acrylate or acrylates are graft-polymerized.

摘要翻译： 具有高耐冲击性和鱼眼含量少的组合物，包含97-60重量份聚氯乙烯基树脂和3-40重量份通过三相接枝聚合获得的接枝共聚物65至25 重量份的包含12至57重量％甲基丙烯酸甲酯的单体组合（B），1至24重量％的至少一种具有C 1-8 - 烷基的丙烯酸烷基酯，80至40重量％ 苯乙烯和0〜3重量％的在分子中具有一个或多个烷基的多官能交联剂，在35〜75重量份的含有30重量％以上的1,3-丁二烯系弹性体（A） 丁二烯单元，所述三段接枝聚合按以下方式进行：首先将至少一种选自电解质和含羧基聚合物胶乳的组分加入到反应体系中; 然后在第一阶段由主要量的甲基丙烯酸甲酯和少量的丙烯酸烷基酯或丙烯酸酯组成的单体混合物，其占甲基丙烯酸甲酯和丙烯酸烷基酯或丙烯酸酯的总重量的50至90重量％ 如果包括在所述单体组合中，则多官能交联剂被接枝聚合; 在第二阶段，苯乙烯接枝聚合; 并且在第三阶段中，剩余的10至50重量％的甲基丙烯酸甲酯和丙烯酸烷基酯或丙烯酸酯被接枝聚合。

公开(公告)号：US4052525A

公开(公告)日：1977-10-04

申请号：US679712

申请日：1976-04-23

申请人： Fumio Ide ,  Kazuo Kishida ,  Akira Hasegawa

发明人： Fumio Ide ,  Kazuo Kishida ,  Akira Hasegawa

IPC分类号： C08F220/00 ,  B32B27/28 ,  B32B27/30 ,  C08F220/10 ,  C08F285/00 ,  C08L33/00 ,  C08L33/04 ,  C08L51/00 ,  C08L51/02 ,  B32B27/36 ,  B32B27/08

CPC分类号： B32B27/28 ,  C08F285/00 ,  Y10T428/31507 ,  Y10T428/3175 ,  Y10T428/31797 ,  Y10T428/31909 ,  Y10T428/31913 ,  Y10T428/31917 ,  Y10T428/3192 ,  Y10T428/31924 ,  Y10T428/31928 ,  Y10T428/31935

摘要： A multi-layer structure polymer composition composed of an innermost layer (A), an elastomeric layer (B), an outermost layer (C), and at least one intermediate layer, said layer (A) having a glass transition temperature (Tg) of 10.degree. C. or higher and consisting of the reaction product of 51 to 100 parts by weight of an alkyl methacrylate whose alkyl group has 4 or less carbon atoms, 0 to 49 parts by weight of a copolymerizable monomer, 0 to 10 parts by weight of a polyfunctional monomer, and 0.1 to 5 parts by weight of a graftlinking agent; said layer (B) having a glass transition temperature (Tg) of 0.degree. C. or lower and consisting of the reaction product of 80 to 100 parts by weight of an alkyl acrylate whose alkyl group has 8 or less carbon atoms, 0 to 20 parts by weight of a copolymerizable monomer, 0 to 10 parts by weight of a polyfunctional monomer, and 0.1 to 5 parts by weight of a graftlinking agent; said layer (C) having a glass transition temperature (Tg) of 50.degree. C. or higher and consisting of the reaction product of 51 to 100 parts by weight of an alkyl methacrylate whose alkyl group has 4 or less carbon atoms, and 0 to 49 parts by weight of a copolymerizable monomer; and said intermediate layer consisting of the reaction product of 10 to 90 parts by weight of an alkyl methacrylate whose alkyl group has 4 or less carbon atoms, 90 to 10 parts by weight of an alkyl acrylate whose alkyl group has 8 or less carbon atoms, 0 to 10 parts by weight of a polyfunctional monomer, and 0.1 to 5 parts by weight of a graftlinking agent. The said polymer composition is excellent in transparency, gloss, and resistance to stress whitening and has good resistance to weather and impact.

公开(公告)号：US4041106A

公开(公告)日：1977-08-09

申请号：US685145

申请日：1976-05-11

申请人： Fumio Ide ,  Kazuo Kishida ,  Norihisa Osaka

发明人： Fumio Ide ,  Kazuo Kishida ,  Norihisa Osaka

IPC分类号： C08L27/00 ,  C08F285/00 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L25/16 ,  C08L27/06 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L51/04 ,  A43B13/04 ,  C08F6/24 ,  C08L51/06

CPC分类号： C08L27/06 ,  C08L25/16 ,  C08L51/04

摘要： Provided are vinyl chloride polymer compositions having a composite elastomer modifier incorporated therein, whereby said polymers exhibit on excellent balance of the physical properties of thermal resistance, transparency, and impact resistance. The composite elastomer modifier is comprised of (A) 20 to 60% by weight of a graft copolymer prepared by grafting methyl methacrylate and styrene onto a butadiene rubber in a specified sequential multi-stage polymerization procedure of (B) 40 to 80% by weight of a copolymer comprised of .alpha.-methylstyrene, methyl methacrylate and acrylonitrile. The composite elastomer modifier may be prepared by either blending graft copolymer (A) with copolymer (B) or by polymerizing a monomer charge of copolymer (B) in the presence of graft copolymer (A).

摘要翻译： 所提供的是具有并入其中的复合弹性体改性剂的氯乙烯聚合物组合物，由此所述聚合物在耐热性，透明性和耐冲击性的物理性能方面表现出优异的平衡。 复合弹性体改性剂由（A）20〜60重量％的接枝共聚物组成，接枝共聚物是通过以（B）40〜80重量％的指定的顺序多阶段聚合方法将甲基丙烯酸甲酯和苯乙烯接枝到丁二烯橡胶上而成的 由α-甲基苯乙烯，甲基丙烯酸甲酯和丙烯腈组成的共聚物。 复合弹性体改性剂可以通过将接枝共聚物（A）与共聚物（B）共混或通过在接枝共聚物（A）的存在下聚合共聚物（B）的单体电荷来制备。