Thermoplastic molding materials based on special graft rubber components
    2.
    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℃

    ABS moulding material with improved workability and a high lustre
    3.
    发明授权
    ABS moulding material with improved workability and a high lustre 失效
    ABS成型材料具有改善的加工性和高光泽

    公开(公告)号:US07074854B2

    公开(公告)日:2006-07-11

    申请号:US10204137

    申请日:2001-02-12

    IPC分类号: C08L51/04

    摘要: A Polymer compositions that features high degree of toughness, very good processability and extremely high gloss is disclosed. The composition contains (I) a graft rubber polymer obtained by emulsion polymerization of styrene and acrylonitrile in the presence of a mixture of (A) a butadiene polymer latex having a mean particle diameter d50≦250 nm, a particle size distribution width of 20 to 80 nm and a gel content of 30 to 95 wt. %, (B) a butadiene polymer latex with a mean particle diameter d50>250 to 350 nm, a particle size distribution width of 30 to 100 nm and gel content of 30 to 80 wt. %, and (C) a butadiene polymer latex (C) with a mean particle diameter d50>350 nm, a particle size distribution width of 40 to 150 nm, and a gel content of 50 to 95 wt. %. and (II) a rubber-free copolymer of styrene and acrylonitrile. At least one of (A), (B) and (C) is a product of seed polymerization.

    摘要翻译: 公开了具有高韧性,非常好的加工性和极高光泽度的聚合物组合物。 该组合物含有(I)通过苯乙烯和丙烯腈的乳液聚合得到的接枝橡胶聚合物,该混合物是(A)平均粒径d <50%= 250nm的丁二烯聚合物胶乳 ,粒径分布宽度为20〜80nm,凝胶含量为30〜95wt。 %,(B)平均粒径d <50> 250〜350nm,粒径分布宽度为30〜100nm,凝胶含量为30〜80重量%的丁二烯聚合物胶乳。 %,和(C)平均粒径d <50 <350纳米,粒度分布宽度为40〜150nm,凝胶含量为50〜95的丁二烯聚合物胶乳(C) 重量 %。 和(II)苯乙烯和丙烯腈的无橡胶共聚物。 (A),(B)和(C)中的至少一种是种子聚合的产物。

    Polymer compositions having improved constancy of properties
    5.
    发明授权
    Polymer compositions having improved constancy of properties 有权
    具有改善的性能恒定性的聚合物组合物

    公开(公告)号:US06767962B2

    公开(公告)日:2004-07-27

    申请号:US10206638

    申请日:2002-07-26

    IPC分类号: C08L5100

    摘要: A thermoplastic molding composition that contains a plurality of graft rubbers is disclosed. A first graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (A) having an average particle diameter (d50) of 80 to 220 nm. An additional graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (B) having an average particle diameter (d50) of 350 to 650 nm. The butadiene polymer latex (A) is the product of seed polymerization in which seed is butadiene polymer latex having a median particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of agglomeration in which butadiene polymer latex (A) is the starting latex.

    摘要翻译: 公开了一种含有多个接枝橡胶的热塑性模塑组合物。 在平均粒径(d50)为80〜220nm的丁二烯聚合物胶乳(A)的存在下,第一接枝橡胶是含有苯乙烯和丙烯腈的混合物的乳液聚合的产物。 在平均粒径(d50)为350〜650nm的丁二烯聚合物胶乳(B)的存在下,另外的接枝橡胶是含有苯乙烯和丙烯腈的混合物的乳液聚合的产物。 丁二烯聚合物胶乳(A)是种子聚合的产物,其中种子是中值粒径为10-100nm的丁二烯聚合物胶乳,丁二烯聚合物胶乳(B)是其中丁二烯聚合物胶乳( A)是起始胶乳。

    Determining the reaction progress of graft polymerization reactions
    6.
    发明授权
    Determining the reaction progress of graft polymerization reactions 失效
    确定接枝聚合反应的反应进程

    公开(公告)号:US07122379B2

    公开(公告)日:2006-10-17

    申请号:US10281597

    申请日:2002-10-28

    IPC分类号: G01N24/00 G01N33/44

    摘要: A method of using Raman Spectra for determining the progress of a graft polymerization reaction is disclosed. The method entails (a) measuring at the beginning of the reaction and at a plurality of time intervals in the course of the reaction, continuously and on-site, the Raman spectrum in the wave number range of 100 to 4000 cm−1 of one or more of the monomers and/or polymers entailed in the reaction and of at least one internal standard and (b) recording the spectra and (c) adding reaction partners necessary to the reaction continuously and/or discontinuously and (d) calculating the change in concentration of the monomers and polymers by comparing the spectra of the monomers or polymers with the internal standard.

    摘要翻译: 公开了一种使用拉曼光谱测定接枝聚合反应进程的方法。 该方法需要(a)在反应开始时和在反应过程中以多​​个时间间隔连续和现场测量波数范围为100至4000cm -1的拉曼光谱, 反应中所含的一种或多种单体和/或聚合物中的1种和至少一种内标,和(b)记录光谱,和(c)连续和/或不连续地加入反应所需的反应伴侣 和(d)通过将单体或聚合物的光谱与内标进行比较来计算单体和聚合物的浓度变化。

    Impact-modified polyester/polycarbonate compositions with improved elongation at break
    10.
    发明授权
    Impact-modified polyester/polycarbonate compositions with improved elongation at break 有权
    冲击改性聚酯/聚碳酸酯组合物具有改善的断裂伸长率

    公开(公告)号:US08901216B2

    公开(公告)日:2014-12-02

    申请号:US13215083

    申请日:2011-08-22

    IPC分类号: C08L51/04 C08L67/02 C08K3/32

    摘要: The present invention relates to impact-modified polyester/polycarbonate compositions containing: A) 41 to 80 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of aromatic polycarbonate, B) 5 to 40 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of polyester with a content of isophthalic acid building blocks, C) 1 to 15 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of rubber-modified graft polymer, D) 0 to 25 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of a flame retardant, E) 0 to 20 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D=100, of vinyl (co)polymer, F) 0 to 50 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D=100, of additives, wherein all the stated parts by weights in the present application are normalized such that the sum of the parts by weight of components A+B+C+D in the composition amounts to 100, which exhibit improved elongation at break in conjunction with excellent multiaxial toughness and low molding shrinkage. Provided that these compositions have been rendered flame-retardant, they exhibit flame retardant properties which are equal to or better than known compositions.

    摘要翻译: 本发明涉及冲击改性的聚酯/聚碳酸酯组合物,其包含:A)41至80重量份,在每种情况下相对于芳族聚碳酸酯组分A + B + C + D的重量份数B,B )5〜40重量份,在各情况下相对于间苯二甲酸结构单元含量的聚酯的成分A + B + C + D的重量份的总和,C)1〜15重量份, 在每种情况下,相对于橡胶改性的接枝聚合物的组分A + B + C + D的重量份数的总和,D)0至25重量份,在每种情况下相对于重量份的总和 的阻燃剂的组分A + B + C + D,E)0至20重量份,在每种情况下相对于组分A + B + C + D = 100的重量份的总和,乙烯基 (共)聚合物,F)0至50重量份,在每种情况下相对于添加剂组分A + B + C + D = 100的重量份的总和,其中所有所述重量份 现在申请 归一化,使得组合物中组分A + B + C + D的重量份数之和为100,结合优异的多轴韧性和低成型收缩率显示出提高的断裂伸长率。 只要这些组合物已经被阻燃,它们表现出等于或优于已知组合物的阻燃性能。