公开(公告)号：US4767833A

公开(公告)日：1988-08-30

申请号：US911875

申请日：1986-09-26

申请人： Tsunemasa Yumoto ,  Yoshio Nakanishi ,  Kazuki Iwai ,  Tadahiko Itoh

发明人： Tsunemasa Yumoto ,  Yoshio Nakanishi ,  Kazuki Iwai ,  Tadahiko Itoh

IPC分类号： C08F279/00 ,  C08F279/02 ,  C08F257/02 ,  C08F279/06

CPC分类号： C08F279/02

摘要： A thermoplastic resin composition obtained by graft-polymerizing 95 to 50 parts by weight of a monomer mixture comprising a vinyl aromatic compound monomer and an acrylic compound monomer and optionally a vinyl cyanide compound monomer in the presence of 5 to 50 parts by weight of a rubbery substance consisting of styrene-butadiene copolymers, characterized in that the rubbery substance comprises (A) 40 to 80% by weight of a styrene-butadiene copolymer having a number-average particle diameter of at least 0.05 .mu.m and less than 0.2 .mu.m, a gel content of 30 to 100% by weight and a bound styrene content of 10 to 40% by weight and (B) 60 to 20% by weight of a styrene-butadiene copolymer having a number-average particle diameter of 0.2 to 3 .mu.m, a gel content of 10 to 80% by weight and a bound styrene content of 10 to 40% by weight and the total content of the components (A) and (B) in the rubbery substance is at least 80% by weight. Said thermoplastic resin composition is superior in chemical resistance, transparency, impact resistance and product appearance.

摘要翻译： 一种热塑性树脂组合物，其通过在95〜50重量份的含有乙烯基芳族化合物单体和丙烯酸类化合物单体的单体混合物和任选的乙烯基氰化合物单体的存在下，在5〜50重量份的橡胶状 由苯乙烯 - 丁二烯共聚物组成的物质，其特征在于，所述橡胶状物质包含（A）40〜80重量％数均粒径为0.05μm以上且小于0.2μm的苯乙烯 - 丁二烯共聚物， 凝胶含量为30〜100重量％，结合苯乙烯含量为10〜40重量％，（B）60〜20重量％的数均粒径为0.2〜3μm的苯乙烯 - 丁二烯共聚物 m，凝胶含量为10〜80重量％，结合苯乙烯含量为10〜40重量％，橡胶状物质中组分（A）和（B）的总含量为至少80重量％。 所述热塑性树脂组合物的耐化学性，透明性，耐冲击性和产品外观优异。

公开(公告)号：US06448342B2

公开(公告)日：2002-09-10

申请号：US09836551

申请日：2001-04-18

申请人： Takashi Kurata ,  Shinobu Fukumura ,  Yoshio Nakanishi ,  Junichirou Nitta

发明人： Takashi Kurata ,  Shinobu Fukumura ,  Yoshio Nakanishi ,  Junichirou Nitta

IPC分类号： C08F3606

CPC分类号： C08F279/02

摘要： The present invention relates to a transparent butadiene-based rubber-reinforced resin produced by graft-polymerizing monomer components (b) comprising as main components an aromatic vinyl compound, a vinyl cyanide compound and an acrylic or methacrylic acid ester in the presence of particles of a butadiene-based rubber (a), said butadiene-based rubber-reinforced resin comprising, when observed by an electron microscope, a rubber phase having an average particle size of 150 to 350 nm and containing particles having a particle size of less than 150 nm in an amount of not more than 30% by weight and particles having a particle size of more than 350 nm in an amount of not more than 30% by weight; and containing acetone solubles having an intrinsic viscosity [&eegr;] of 0.2 to 0.4 dl/g when measured at 30° C. in methyl ethyl ketone.

摘要翻译： 本发明涉及通过将单体组分（b）接枝聚合制备的透明丁二烯类橡胶增强树脂，其包含作为主要组分的芳族乙烯基化合物，乙烯基氰化合物和丙烯酸或甲基丙烯酸酯， 丁二烯类橡胶（a），所述丁二烯系橡胶强化树脂通过电子显微镜观察时，包含平均粒径为150〜350nm的橡胶相，并且含有粒径小于150的粒子 nm，不大于30重量％，粒径大于350nm的颗粒的含量不超过30重量％; 并且当在30℃下在甲基乙基酮中测量时，含有特性粘度η为0.2至0.4dl / g的丙酮可溶物。