ABS moulding compositions with improved properties
    11.
    发明授权
    ABS moulding compositions with improved properties 失效
    具有改进性能的ABS模塑组合物

    公开(公告)号:US5741853A

    公开(公告)日:1998-04-21

    申请号:US651454

    申请日:1996-05-22

    摘要: Thermoplastic moulding compositions of the ABS type of I) at least one graft copolymer which is obtainable by emulsion polymerization of styrene and acrylonitrile in the weight ratio 90:10 to 50:50, wherein styrene and/or acrylonitrile can be completely or partly replaced by .alpha.-methylstyrene, methyl methacrylate or N-phenylmaleimide, in the presence of at least two butadiene polymer latices of types (A) and (B), which each contain, copolymerized, 0 to 50 wt. % of a further vinyl monomer, and wherein the weight ratio of monomers used to butadiene polymers used is 25:75 to 70:30, and II) at least one copolymer of styrene and acrylonitrile in the weight ratio 90:10 to 50:50, wherein styrene and/or acrylonitrile can be completely or partly replaced by .alpha.-methylstyrene, methyl methacrylate or N-phenylmaleimide, characterized in that the butadiene polymer latex (A) has a particle diameter d.sub.50 .ltoreq.320 nm, a width of the particle size distribution (measured as d.sub.90 -d.sub.10 from the integral particle size distribution) of 30 to 100 nm, and a gel content.ltoreq.70 wt. % and the butadiene polymer latex (B) has a particle diameter d.sub.50 .gtoreq.370 nm, a width of the particle size distribution (measured as d.sub.90 -d.sub.10 from the integral particle size distribution) of 50 to 500 nm and a gel content.gtoreq.70 wt. %.

    摘要翻译: ABS型I型热塑性成型组合物)至少一种接枝共聚物,其可通过苯乙烯和丙烯腈的重量比90:10至50:50的乳液聚合获得,其中苯乙烯和/或丙烯腈可以完全或部分地被 α-甲基苯乙烯,甲基丙烯酸甲酯或N-苯基马来酰亚胺,在至少两种类型(A)和(B)的丁二烯聚合物胶乳的存在下,它们各自含有0至50wt。 %的另外的乙烯基单体,并且其中使用的单体与丁二烯聚合物的重量比为25:75至70:30,和II)至少一种苯乙烯和丙烯腈的共聚物,其重量比为90:10至50:50 其中苯乙烯和/或丙烯腈可以被α-甲基苯乙烯,甲基丙烯酸甲酯或N-苯基马来酰亚胺完全或部分替代,其特征在于丁二烯聚合物胶乳(A)的粒径d50 <320nm, 粒度分布(从整体粒度分布以d90-d10测量)为30至100nm,凝胶含量为70wt。 %,丁二烯聚合物胶乳(B)的粒径d50≥370nm,粒度分布的宽度(以积分粒度分布测定为d90-d10)为50〜500nm,凝胶含量> / = 70wt。 %。

    Thermoplastic moulding compositions of the ABS type
    13.
    发明授权
    Thermoplastic moulding compositions of the ABS type 失效
    ABS型热塑性成型组合物

    公开(公告)号:US5696204A

    公开(公告)日:1997-12-09

    申请号:US609163

    申请日:1996-02-26

    CPC分类号: C08L55/02

    摘要: Thermoplastic moulding compositions comprising A) 1 to 60 parts by weight of at least one particulate graft rubber polymer of the ABS type which is produced by emulsion polymerisation, in which at least 50% of the graft rubber particles (number) have a structure detectable via transmission electron microscopy photographs in which the individual particles contain irregular cellular inclusions of resin-forming polymer and the surface of the particles has an irregular jagged structure such that 5 to 30 of such peaks are present per depicted particle, which particles differ from an idealised round particle (having a diameter d) by a diameter d+d/x, where x=3 to 15, B) 40 to 99 parts by weight of at least one particulate graft rubber polymer of the ABS type which is produced by solution or bulk polymerisation and which has the morphology which is characteristic of bulk types of ABS, and optionally C) 0 to 200 parts by weight of at least one thermoplastic, rubber-free resin.

    摘要翻译: 包含A)1至60重量份的至少一种由乳液聚合制备的至少一种ABS型颗粒接枝橡胶聚合物,其中至少50%的接枝橡胶颗粒(数量)具有可检测的结构 透射电子显微镜照片,其中单个颗粒含有形成树脂的聚合物的不规则细胞夹杂物,并且颗粒表面具有不规则的锯齿状结构,使得每个所述颗粒存在5至30个这样的峰,该颗粒与理想化圆 颗粒(直径d)直径d + d / x,其中x = 3至15,B)40至99重量份的由溶液或体积产生的ABS型的至少一种颗粒接枝橡胶聚合物 聚合并且其具有ABS的主体类型特征的形态,并且任选地C)0至200重量份的至少一种热塑性橡胶树脂。

    ABS molding compounds with improved toughness
    14.
    发明授权
    ABS molding compounds with improved toughness 失效
    具有改善韧性的ABS模塑料

    公开(公告)号:US5674940A

    公开(公告)日:1997-10-07

    申请号:US660467

    申请日:1996-06-07

    摘要: Thermoplastic molding compounds of the ABS type of A) at least one graft polymer obtainable by emulsion polymerization of styrene and acrylonitrile in a ratio by weight of 90:10 to 50:50, the styrene and/or acrylonitrile being completely or partly replaceable by .alpha.-methyl styrene, methyl methacrylate or N-phenyl maleic imide, in the presence of at least two butadiene polymer latices of type (A) and (B), of which each contains 0 to 50% by weight of another vinyl monomer in copolymerized form, the ratio by weight of the monomers used to the butadiene polymers used being 25:75 to 70:30, and B) at least one copolymer of styrene and acrylonitrile in a ratio by weight of 90:10 to 50:50, the styrene and/or acrylonitrile being completely or partly replaceable by .alpha.-methyl styrene, methyl methacrylate or N-phenyl maleic imide, characterized in that the butadiene polymer latex (A) has a particle diameter d.sub.50 of .ltoreq.250 nm, a width of the particle size distribution (measured as d.sub.90 -d.sub.10 from the integral particle size distribution) of 500 to 1000 nm and a gel content of .ltoreq.70% by weight, the butadiene polymer latex (B) has a particle diameter d.sub.50 of .gtoreq.300 nm, a width of the particle size distribution (measured as d.sub.90 -d.sub.10 from the integral particle size distribution) of 50 to 500 nm and a gel content of .gtoreq.70% by weight and the graft polymerization is carried out by addition of the monomers to the mixture of butadiene polymer latices (A) and (B) in such a way that 55 to 90% by weight of the monomers are added in the first half of the monomer addition time.

    摘要翻译: ABS型的热塑性成型化合物A)至少一种可通过苯乙烯和丙烯腈的重量比为90:10至50:50的乳液聚合而获得的接枝聚合物,苯乙烯和/或丙烯腈可完全或部分地被α 甲基苯乙烯,甲基丙烯酸甲酯或N-苯基马来酰亚胺,在至少两种类型(A)和(B)的丁二烯聚合物胶乳的存在下,其各自含有0至50重量%的共聚形式的另一个乙烯基单体 所用的丁二烯聚合物的单体重量比为25:75至70:30,B)苯乙烯和丙烯腈的至少一种共聚物的重量比为90:10至50:50,苯乙烯 和/或丙烯腈由α-甲基苯乙烯,甲基丙烯酸甲酯或N-苯基马来酰亚胺完全或部分替代,其特征在于丁二烯聚合物胶乳(A)的粒径d50为<250nm,宽度为 粒度分布(以d90-d10测量) m的整体粒度分布)为500〜1000nm,凝胶含量为70重量%,丁二烯聚合物胶乳(B)的粒径d50> 300nm,粒径 分布(从整体粒度分布测定为d90-d10)为50〜500nm,凝胶含量≥70重量%,接枝聚合通过将单体加入到丁二烯聚合物胶乳 (A)和(B),使得在单体添加时间的前半部分中加入55〜90重量%的单体。

    Determining the reaction progress of graft polymerization reactions
    15.
    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。

    Thermoplastic molding materials based on special graft rubber components
    18.
    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℃

    Process for working up emulsion polymers
    19.
    发明授权
    Process for working up emulsion polymers 失效
    加工乳液聚合物的方法

    公开(公告)号:US06747124B2

    公开(公告)日:2004-06-08

    申请号:US10017302

    申请日:2001-12-14

    IPC分类号: C08J303

    摘要: A process for working up polymer components prepared by emulsion polymerization is disclosed. The process is characterized in that coagulation of the aqueous polymer latex present after emulsion polymerization is performed using a combination of A) an aqueous solution of at least one salt selected from the group consisting of sodium chloride, calcium chloride, magnesium chloride, aluminum chloride, sodium sulfate, magnesium sulfate and aluminum sulfate, B) an aqueous solution of at least one salt of an acid selected from the group consisting of hypophosphorous acid (H3PO2), phosphorous acid (H3PO3 or HPO2) and ascorbic acid and optionally C) an aqueous dilute acid selected from the group consisting of sulfuric acid, phosphoric acid and acetic acid.

    摘要翻译: 公开了通过乳液聚合制备聚合物组分的方法。 该方法的特征在于,乳液聚合之后存在的聚合物胶乳的凝结是使用以下组合进行的:A)至少一种选自氯化钠,氯化钙,氯化镁,氯化铝, 硫酸钠,硫酸镁和硫酸铝,B)至少一种选自次磷酸(H3PO2),亚磷酸(H 3 PO 3或HPO 2)和抗坏血酸的酸的盐的水溶液和任选的C)水性 选自硫酸,磷酸和乙酸的稀酸。