公开(公告)号：US06228946B1

公开(公告)日：2001-05-08

申请号：US09343519

申请日：1999-06-30

申请人： Koji Kitayama ,  Kenichi Hamada ,  Makoto Akai ,  Kazushige Ishiura

发明人： Koji Kitayama ,  Kenichi Hamada ,  Makoto Akai ,  Kazushige Ishiura

IPC分类号： C08F2502

CPC分类号： C08L53/005 ,  C08F297/02 ,  C08F297/026 ,  C08L2666/02 ,  C08L2666/04

摘要： A block copolymer comprising, in a main chain thereof, a crystalline polymer block A obtained by hydrogenation of at least 80% of unsaturated bonds of a butadiene-based polymer block having a 1,2-bond content less than 20%, a polymer block B having a glass transition point of 20° C. or lower and a polymer block C composed mainly of a methacrylate ester unit and/or an acrylate ester unit and having a glass transition point exceeding 20° C. has good elastomeric properties, excellent weather resistance, solvent resistance and heat resistance and has good affinity with each of a polar polymer and non-polar polymer. A polymer composition comprising said block copolymer effectively exhibits the above-described characteristics of the block copolymer.

摘要翻译： 一种嵌段共聚物，在其主链中包含通过氢化至少80％的具有小于20％的1,2-键含量的丁二烯基聚合物嵌段的不饱和键获得的结晶聚合物嵌段A，聚合物嵌段 B的玻璃化转变点为20℃以下，主要由甲基丙烯酸酯单元和/或丙烯酸酯单元构成的玻璃化转变点超过20℃的聚合物嵌段C具有良好的弹性，良好的天气 电阻，耐溶剂性和耐热性，并且与极性聚合物和非极性聚合物中的每一种具有良好的亲和性。 包含所述嵌段共聚物的聚合物组合物有效地表现出上述嵌段共聚物的特性。

公开(公告)号：US5859131A

公开(公告)日：1999-01-12

申请号：US828284

申请日：1997-03-21

申请人： Kazushige Ishiura ,  Katsunori Takamoto ,  Takashi Yamashita ,  Syuichi Kanao ,  Syunji Kaneda ,  Hiromichi Nakata

发明人： Kazushige Ishiura ,  Katsunori Takamoto ,  Takashi Yamashita ,  Syuichi Kanao ,  Syunji Kaneda ,  Hiromichi Nakata

IPC分类号： C08G18/08 ,  C08G18/10 ,  C08G18/62 ,  C08G18/69 ,  C08L75/04 ,  C08L59/00

CPC分类号： C08G18/10 ,  C08G18/0895 ,  C08G18/6208 ,  C08G18/69 ,  C08L75/04

摘要： A resin composition containing (A) a thermoplastic polyurethane; (B) a polymer having a hydroxyl group at the end of the molecular main chain, the main chain principally comprising a conjugated diene compound unit (I) which may or may not be hydrogenated and an aromatic vinyl compound unit (II); and (C) a polyacetal resin, at ratios of (A), (B) and (C) being 2.5 to 90% by weight, 2.5 to 90% by weight and 5 to 95% by weight, respectively, on the basis of the total weight of the (A), (B) and (C), is excellent in terms of tensile strength and tensile elongation, and impact resistance at ambient temperature and lower temperatures.

摘要翻译： 一种树脂组合物，其含有（A）热塑性聚氨酯; （B）在分子主链末端具有羟基的聚合物，主链主要包含可被氢化的或不被氢化的共轭二烯化合物单元（I）和芳族乙烯基化合物单元（II）; 和（C）以（A），（B）和（C）的比例分别为2.5〜90重量％，2.5〜90重量％和5〜95重量％的聚缩醛树脂 （A），（B）和（C）的总重量在拉伸强度和拉伸伸长率以及环境温度和较低温度下的耐冲击性方面都是优异的。

公开(公告)号：US5571871A

公开(公告)日：1996-11-05

申请号：US514864

申请日：1995-08-14

申请人： Kaoru Ikeda ,  Toshiaki Sato ,  Kazushige Ishiura

发明人： Kaoru Ikeda ,  Toshiaki Sato ,  Kazushige Ishiura

IPC分类号： C08F8/42 ,  C08L23/06 ,  C08L23/08 ,  C08L23/26 ,  C08L29/04 ,  C08L43/00 ,  C08L57/06 ,  C08L77/00

CPC分类号： C08L23/06 ,  C08F8/42 ,  C08L23/08 ,  C08L29/04 ,  C08L2205/08 ,  C08L23/26 ,  C08L43/00 ,  C08L57/06 ,  C08L77/00

摘要： A resin composition comprises an EVOH (A) and a thermoplastic polymer (B) having at least one functional group selected from the group consisting of boronic acid group, borinic acid group and boron-containing groups convertible into boronic acid group or borinic acid group in the presence of water. The composition may further comprise a thermoplastic polymer (C) other than (A) or (B). The resin compositions thus obtained have good compatibility and give molded products having superior transparency and good mechanical properties.