Aqueous dispersions of epoxide compounds
    1.
    发明授权
    Aqueous dispersions of epoxide compounds 失效
    环氧化合物的水分散体

    公开(公告)号:US4318832A

    公开(公告)日:1982-03-09

    申请号:US181066

    申请日:1980-08-25

    摘要: An aqueous dispersion of an epoxide compound comprising water, one or more water-insoluble 1,2-epoxide compounds having mol weights Mn of from between 150 and 3000 and an emulsifying system comprising:(A) from 9.5 to 35% by weight of at least one polyester resin containing carboxyl groups having an acid number of from 10 to 50 mg KOH/g substance and a molecular weight Mn of from 400 to 4000, at least 30% of the carboxyl groups being neutralized;(B) from 0.5 to 25% by weight of at least one emulsifier having an HLB-value.gtoreq.15 and represented by the formula: ##STR1## wherein R.sup.1 represents a C.sub.1 -C.sub.16 -alkyl group,R.sup.2 represents H or a C.sub.1 -C.sub.16 -alkyl group,R.sup.3 represents H or methyl,n represents a number from 10 to 50;(C) from 40 to 90% by weight of at least one emulsifier having an HLB-value of 15 and the general formula: ##STR2## wherein R.sup.2 is previously defined, R.sup.4 represents C.sub.1 -C.sub.4 -alkyl group, x is a number of from 2 to 3, and m is a number from 15 to 100, the total of the percentage contents from A, B, and C being 100%.

    摘要翻译: 一种环氧化合物的水分散体,其包含水,一种或多种具有150至3000的摩尔重量Mn的水不溶性1,2-环氧化物化合物和乳化体系,其包含:(A)9.5至35重量% 含有酸值为10〜50mg KOH / g物质和分子量Mn为400〜4000的羧基的至少一种聚酯树脂,至少30%的羧基被中和; (B)0.5至25重量%的至少一种具有HLB值> / = 15的乳化剂,由下式表示:其中R1表示C1-C16 - 烷基,R2表示H或C1 C 1-6 - 烷基,R 3表示H或甲基,n表示10〜50的数。 (C)40至90重量%的至少一种HLB值为15的乳化剂,通式为:其中R 2为前述定义,R 4表示C 1 -C 4 - 烷基,x为 2〜3,m为15〜100的数,A,B,C的百分比含量为100%。

    Thermoplastic molding materials based on special graft rubber components
    4.
    发明授权
    Thermoplastic molding materials based on special graft rubber components 失效
    基于特殊接枝橡胶成分的热塑性成型材料

    公开(公告)号:US06828380B2

    公开(公告)日:2004-12-07

    申请号:US10220707

    申请日:2002-11-21

    IPC分类号: C08L5502

    摘要: A molding composition having good surface gloss, high elongation at break and good thermoplastic processability is disclosed. The composition contains (A) a graft polymer that is obtained by free-radical polymerization of resin-forming vinyl monomers in the presence of rubber in latex form, (B) a copolymer of styrene and acrylonitrile and an optional (C) a resin selected from the group consisting of polycarbonates, polyester-carbonates, polyesters and polyamides. The preparation of the graft polymer is characterized in that (i) before the start of the grafting polymerization reaction the rubber latex is brought to a pH of 9 to 11, (ii) the redox initiator components are employed in amounts of 0.1 to 2.5 wt. % (based on the monomers metered in) and (iii) during the entire grafting polymerization reaction the pH remains constant±0.5 and in the range of 11.0 to 8.8, and (iv) the temperature difference between the start and end of the reaction is at least 10° C.

    摘要翻译: 公开了具有良好的表面光泽度,高断裂伸长率和良好的热塑性加工性能的成型组合物。 该组合物含有(A)通过在胶乳形式的橡胶存在下形成树脂的乙烯基单体的自由基聚合获得的接枝聚合物,(B)苯乙烯和丙烯腈的共聚物和任选的(C)树脂选择 由聚碳酸酯,聚酯 - 碳酸酯,聚酯和聚酰胺组成。 接枝聚合物的制备的特征在于:(i)在接枝聚合反应开始之前,使橡胶胶乳的pH值达到9至11,(ii)氧化还原引发剂组分的用量为0.1至2.5重量% 。 %(基于计量的单体)和(iii)在整个接枝聚合反应期间,pH保持恒定±0.5且在11.0至8.8的范围内,和(iv)反应开始和结束之间的温度差为 至少10℃

    Copolymers of alpha-methyl styrene and acrylonitrile
    6.
    发明授权
    Copolymers of alpha-methyl styrene and acrylonitrile 失效
    α-甲基苯乙烯和丙烯腈的共聚物

    公开(公告)号:US4755576A

    公开(公告)日:1988-07-05

    申请号:US765601

    申请日:1985-08-14

    CPC分类号: C08F212/12

    摘要: Copolymers of from 65 to 75%, by weight, of .alpha.-methyl styrene and from 35 to 25%, by weight, of .alpha.-methyl styrene and from 35 to 25%, by weight, of acrylonitrile, obtainable by radical emulsion polymerization, the monomers being metered in during the course of the polymerization, wherein the molar ratio: ##EQU1## of the unreacted monomers in the reaction mixture is maintained during the metering phase between 0.7 and 1.25.

    摘要翻译: 65至75重量%的α-甲基苯乙烯和35至25重量%的α-甲基苯乙烯和35至25重量%的丙烯腈的共聚物,可通过自由基乳液聚合获得, 在聚合过程中计量单体,其中反应混合物中未反应单体的摩尔比:在计量阶段期间维持在0.7和1.25之间。