Process for producing a low gloss thermoplastic resin
    1.
    发明授权
    Process for producing a low gloss thermoplastic resin 失效
    低光泽热塑性树脂的制造方法

    公开(公告)号:US4877844A

    公开(公告)日:1989-10-31

    申请号:US135470

    申请日:1987-12-21

    IPC分类号: C08F236/12 C08F279/02

    CPC分类号: C08F236/12 C08F279/02

    摘要: A process for producing a low gloss thermoplastic resin which comprises polymerizing in two steps from 20 to 70 parts by weight of a butadiene polymer, at least 70% by weight of which is constituted by butadiene, with from 30 to 80 parts by weight of a total of from 15 to 40% by weight of a vinyl cyanide monomer and from 60 to 85% by weight of an aromatic vinyl monomer, characterized in that for the polymerization of the first step, the butadiene polymer, the vinyl cyanide monomer and the aromatic vinyl monomer were charged in amounts corresponding to from 20 to 80% by weight of the entire butadiene polymer, from 20 to 80% by weight of the entire vinyl cyanide monomer and from 20 to 80% by weight of the entire aromatic vinyl monomer, respectively, and after the completion of the polymerization of the first step, the rest of the butadiene polymer, the vinyl cyanide monomer and the aromatic vinyl monomer were charged for the polymerization of the second step.

    摘要翻译: 一种低光泽性热塑性树脂的制造方法,其特征在于,将20〜70重量份的丁二烯聚合物,其中至少70重量%由丁二烯构成,其中20〜70重量份, 总计为15至40重量%的乙烯基氰单体和60至85重量%的芳族乙烯基单体,其特征在于,对于第一步骤的聚合,丁二烯聚合物,乙烯基氰单体和芳族化合物 乙烯基单体的量相当于整个丁二烯聚合物的20至80重量%,全部乙烯基氰单体的20至80重量%和芳族乙烯基单体总量的20至80重量% ,在第一步聚合完成后,加入其余的丁二烯聚合物,乙烯基氰单体和芳族乙烯基单体进行第二步的聚合反应。

    Thermoplastic resin compositions having excellent impact resistance,
weather resistance and moldability, and process for preparing the same
    2.
    发明授权
    Thermoplastic resin compositions having excellent impact resistance, weather resistance and moldability, and process for preparing the same 失效
    耐冲击性,耐候性和成型性优异的热塑性树脂组合物及其制备方法

    公开(公告)号:US4912162A

    公开(公告)日:1990-03-27

    申请号:US10426

    申请日:1987-02-03

    IPC分类号: C08F285/00 C08L51/00

    CPC分类号: C08L51/00 Y10S525/902

    摘要: Disclosed is a graft copolymer resin prepared by graft polymerizing a vinyl compound onto a composite-structured acrylic rubber whose particles are composed of a core consisting of a diene rubber enlarged by treatment with an acid group-containing copolymer latex, and an outer layer consisting of an acrylate polymer having a crosslinked structure formed by the combined use of a graft-linking agent and a cross-linking agent. This graft copolymer resin may be blended with a rigid thermoplastic resin in a specific proportion. This resin composition imparts a good gloss to the molded articles formed therefrom, while retaining excellent impact resistance and weather resistance.

    摘要翻译: 公开了通过将乙烯基化合物接枝聚合到复合结构的丙烯酸橡胶上而制备的接枝共聚物树脂,该复合结构的丙烯酸橡胶的颗粒由通过用含酸基的共聚物胶乳处理而扩大的二烯橡胶组成的芯和由 具有通过组合使用接枝交联剂和交联剂形成的交联结构的丙烯酸酯聚合物。 该接枝共聚物树脂可以与特定比例的刚性热塑性树脂共混。 该树脂组合物对由其形成的模塑制品赋予良好的光泽,同时保持优异的耐冲击性和耐候性。

    Process for the preparation of maleimide copolymers and thermoplastic
resin composition using the same
    3.
    发明授权
    Process for the preparation of maleimide copolymers and thermoplastic resin composition using the same 失效
    用于制备马来酰亚胺共聚物和使用其的热塑性树脂组合物的方法

    公开(公告)号:US4804706A

    公开(公告)日:1989-02-14

    申请号:US25628

    申请日:1987-03-02

    CPC分类号: C08F222/40

    摘要: The present invention provides a process for the preparation of maleimide copolymers by emulsion polymerization of an aromatic vinyl monomer, a vinyl cyanide monomer and a maleimide monomer in specific proportions wherein the polymerization is carried out by charging not less than a specific proportion of the aromatic vinyl monomer and optionally not more than a specific proportion of the vinyl cyanide monomer into the polymerization system before initiation of the polymerization; adding, continuously or dividedly, a mixture composed of the total amount of the maleimide monomer and the remainder of the other monomers to the polymerization system after initiation of the polymerization; maintaining the pH of the aqueous phase of the polymerization system in the range of 3 to 9 at the initiation of said polymerization; and using a redox catalyst containing an oil-soluble organic peroxide. According to this polymerization process, maleimide copolymers having excellent thermal resistance and resistance to thermal decomposition can be prepared in high yield.The present invention also provides a resin composition having excellent thermal resistance, resistance to thermal decomposition, and impact resistance which is formed by blending, in a specific proportion, a maleimide copolymer prepared by the aforesaid process with a rubber-reinforced resin obtained by grafting a vinyl cyanide monomer or the like onto a specific elastomer; and optionally blending the resulting thermoplastic resin composition with a thermoplastic resin that is hard at room temperature.

    摘要翻译: 本发明提供了一种通过芳香族乙烯基单体,乙烯基氰单体和马来酰亚胺单体以特定比例的乳液聚合制备马来酰亚胺共聚物的方法,其中聚合通过将不少于特定比例的芳族乙烯基 单体,并且任选地不超过特定比例的乙烯基氰单体在聚合开始之前进入聚合体系; 在聚合开始后,向马来酰亚胺单体和剩余的其它单体组成的混合物连续地或分开地加入到聚合体系中; 在所述聚合开始时,将聚合体系的水相的pH保持在3〜9的范围内; 并使用含有油溶性有机过氧化物的氧化还原催化剂。 根据该聚合方法,可以高产率制备具有优异的耐热性和耐热分解性的马来酰亚胺共聚物。 本发明还提供一种具有优异的耐热性,耐热分解性和耐冲击性的树脂组合物,其通过以特定比例将通过上述方法制备的马来酰亚胺共聚物与通过将上述方法获得的橡胶增强树脂 乙烯基氰单体等涂覆在特定的弹性体上; 任选地将得到的热塑性树脂组合物与在室温下硬的热塑性树脂共混。

    Process for producing an .alpha.-alkyl-substituted aromatic vinyl
copolymer and a thermoplastic resin composition comprising the copolymer

    公开(公告)号:US5057574A

    公开(公告)日:1991-10-15

    申请号:US523269

    申请日:1990-05-14

    IPC分类号: C08F212/12 C08L25/16

    CPC分类号: C08F212/12 C08L25/16

    摘要: A process for producing an .alpha.-alkyl-substituted aromatic vinyl copolymer constituted of 60 to 85 parts by weight of the .alpha.-alkyl-substituted aromatic vinyl monomer, 15 to 35 parts by weight of a vinyl cyanide monomer, and 0 to 40 parts by weight of another vinyl monomer copolymerizable with these monomers, which process is characterized in thatall the amount of the aromatic vinyl monomer necessary for the entire polymerization and such partial amounts of the vinyl cyanide monomer and another copolymerizable vinyl monomer as to give a predetermined copolymer composition with respect to the content of the aromatic vinyl monomer, are first charged and emulsified andthe emulsion polymerization is then initiated and carried out by adding dropwise continuously the residual amounts of the vinyl cyanide monomer and another copolymerizable vinyl monomer in such a manner that the range of change in the content of the aromatic vinyl monomer in the copolymer during the polymerization reaction will not vary more than 2% in the range of conversion of 0 to 90%; and a thermoplastic resin composition comprising[A] 50 to 90% by weight of a copolymer constituted of 60 to 85 parts by weight of an .alpha.-alkyl-substituted aromatic vinyl monomer, 15 to 35 parts by weight of a vinyl cyanide monomer, and 0 to 40 parts by weight of another vinyl monomer copolymerizable with these monomers, the copolymer being produced in such a manner that the range of change in the content of the aromatic vinyl monomer in the copolymer during the polymerization reaction will not vary more than 2% in the range of conversion of 0 to 90, and[B] 10 to 50% by weight of a graft copolymer constituted of 30 to 85 parts by weight of a rubber polymer and 15 to 70 parts by weight of a grafted polymer consisting of a monovinyl aromatic monomer, vinyl cyanide monomer, and another monomer copolymerizable with them in respective proportions of 85-40:0-40:0-80,where the total amount of polymers [A] and [B] is 100% by weight.

    Process for the preparation of maleimide copolymers and thermoplastic
resin composition using the same
    6.
    发明授权
    Process for the preparation of maleimide copolymers and thermoplastic resin composition using the same 失效
    用于制备马来酰亚胺共聚物和使用其的热塑性树脂组合物的方法

    公开(公告)号:US4757109A

    公开(公告)日:1988-07-12

    申请号:US928279

    申请日:1986-10-14

    CPC分类号: C08F222/40

    摘要: A process for the preparation of maleimide copolymers by emulsion polymerization of 50 to 80% by weight of an aromatic vinyl monomer, 10 to 30% by weight of a vinyl cyanide monomer, and 5 to 40% by weight of a maleimide monomer comprising a three step polymerization process wherein the remaining vinyl cyanide monomer is separately added in the third step of said process.

    摘要翻译: PCT No.PCT / JP86 / 00252 Sec。 一九八六年十月十四日 102(e)1986年10月14日PCT PCT日期:1986年5月16日PCT公布。 出版物WO86 / 06732 日本公报1986年11月20日。一种通过乳液聚合制备马来酰亚胺共聚物的方法,其通过50至80重量%的芳族乙烯基单体,10至30重量%的乙烯基氰单体和5至40重量% 的包含三步聚合方法的马来酰亚胺单体,其中在所述方法的第三步中分离加入剩余的乙烯基氰单体。

    Thermoplastic polyester resin compound
    9.
    发明授权
    Thermoplastic polyester resin compound 失效
    热塑性聚酯树脂复合物

    公开(公告)号:US5284914A

    公开(公告)日:1994-02-08

    申请号:US692782

    申请日:1991-04-26

    CPC分类号: C08L67/02

    摘要: A thermoplastic polyester resin composition characterized by comprising30-70% by weight of a polyester resin (A) constituted mainly of a polyalkylene terephthalate,5-35% by weight of a graft polymer (B) obtained by graft-polymerizing at least one selected from the group consisting of an aromatic vinyl monomer and a methacrylate monomer in the presence of a rubbery polymer, and10-45% by weight of a polyphenylene ether resin (C) andresulting from blending these polymers so that the content of said polyester resin (A) may be higher than that of said polyphenylene ether resin (C).

    摘要翻译: 一种热塑性聚酯树脂组合物,其特征在于包含30-70重量%的主要由聚对苯二甲酸亚烷基酯组成的聚酯树脂(A),5-35重量%的接枝聚合物(B),其通过接枝聚合至少一种选择的 在橡胶状聚合物的存在下由芳香族乙烯基单体和甲基丙烯酸酯单体组成的组和10-45重量%的聚苯醚树脂(C)进行混合,由此将所述聚酯树脂的含量 (A)可以高于所述聚苯醚树脂(C)。

    Impact-resistant thermoplastic resin composition
    10.
    发明授权
    Impact-resistant thermoplastic resin composition 失效
    抗冲击热塑性树脂组合物

    公开(公告)号:US5204406A

    公开(公告)日:1993-04-20

    申请号:US553026

    申请日:1990-07-03

    CPC分类号: C08F265/04 C08L51/04

    摘要: Disclosed is an impact-resistant thermoplastic resin composition comprising (a) a graft copolymer (II) prepared by polymerizing a monomer or monomer mixture predominantly comprised of methyl methacrylate and/or styrene in the presence of an agglomerated rubber copolymer (I') latex, and (b) bent-resistant rigid thermoplastic resin (III) comprised of .alpha.-methylstyrene or a maleimide compound. The agglomerated rubber copolymer (I') is prepared by emulsion-polymerizing an alkyl acrylate/1,3-butadiene mixture, and then agglomerating the resulting rubbery copolymer. The agglomeration is effected by adding (a) an acid group-containing copolymer prepared by emulsion polymerizing an alkyl methacrylate/unsaturated monomer mixture, and/or (b) an oxy acid salt selected from alkali metal, alkaline earth metal, zinc, nickel and aluminum salts of oxy acids having as the center element an element selected from elements belonging to the second and third periods of groups IIIA through VIA of the Periodic Table.