Sinterable, finely divided molded material based on polyvinyl chloride
    3.
    发明授权
    Sinterable, finely divided molded material based on polyvinyl chloride 失效
    基于聚氯乙烯的可分解,细分的成型材料

    公开(公告)号:US4546135A

    公开(公告)日:1985-10-08

    申请号:US714347

    申请日:1985-03-21

    CPC classification number: C08K5/00 C08F214/06 C08F255/026

    Abstract: A sinterable, finely divided molding material and the preparation thereof are described. The molding material is composed of a vinyl chloride (graft) copolymer, at least one anionic and/or nonionic emulsifier and, if appropriate, small quantities of additives.The vinyl chloride (graft) copolymer contains 95 to 70% by weight of polymerized units of vinyl chloride, 5 to 30% by weight of polymerized units of an alkyl acrylate having 3 to 10 carbon atoms, 0 to 7% by weight of polymerized units of ethylene and 0 to 15% by weight of polymerized units of vinyl acetate.The molding material is suitable for the production of flexible, sintered moldings, in particular separator plates, for electric cells.

    Abstract translation: 描述了一种可烧结的,细碎的成型材料及其制备方法。 成型材料由氯乙烯(接枝)共聚物,至少一种阴离子和/或非离子乳化剂以及如果合适的话添加少量的添加剂组成。 氯乙烯(接枝)共聚物含有95〜70重量%的聚合单元的氯乙烯,5〜30重量%的聚合单元,具有3〜10个碳原子的丙烯酸烷基酯,0〜7重量%的聚合单元 的乙烯和0至15重量%的聚合单元的乙酸乙烯酯。 成型材料适用于生产用于电池的柔性,烧结模制品,特别是隔板。

    Process for the preparation of an acrylate-vinyl chloride graft polymer
    4.
    发明授权
    Process for the preparation of an acrylate-vinyl chloride graft polymer 失效
    制备丙烯酸酯 - 氯乙烯接枝聚合物的方法

    公开(公告)号:US4981907A

    公开(公告)日:1991-01-01

    申请号:US260445

    申请日:1988-10-20

    CPC classification number: C08F265/04

    Abstract: A process is described for the preparation of a polymer which contains, besides polymerized units of vinyl chloride, 30 to 60% by weight, relative to the polymer, of polymerized units of an acrylate, if appropriate together with copolymerizable monomers. The acrylate is firstly polymerized in aqueous emulsion with addition of a monomer containing at least 2 ethylenically unsaturated, non-conjugated double bonds in the presence of a fatty acid salt and in the presence of an alkane- or alkylarylsulfonate. Polymerization in aqueous suspension is then carried out in which vinyl chloride, customary polymerization auxiliaries, a precipitant for the emulsifiers used in the emulsion polymerization, and water are initially introduced, and the acrylate dispersion produced by emulsion polymerization is subsequently added. Polymers of high bulk density and good free-flowing properties which can easily be demonomerized are thus obtained. Mixed with vinyl chloride homopolymers, moldings having good impact resistance and surface quality are obtained with good processability.

    Abstract translation: 描述了一种用于制备聚合物的方法,除了氯乙烯的聚合单元之外,如果合适的话,该聚合物相对于聚合物,其含有相对于聚合物的聚合单元为30〜60重量%,以及可共聚的单体。 丙烯酸酯首先在水性乳液中聚合,在脂肪酸盐存在下加入含有至少2个烯键式不饱和的非共轭双键的单体,并在烷烃 - 或烷基芳基磺酸盐存在下进行聚合。 然后进行水性悬浮液的聚合,其中最初引入氯乙烯,常规聚合助剂,用于乳液聚合中使用的乳化剂的沉淀剂和水,然后加入通过乳液聚合制备的丙烯酸酯分散体。 因此获得了易于被脱单体化的高堆积密度和良好自由流动性的聚合物。 与氯乙烯均聚物混合,具有良好的耐冲击性和表面质量的模塑制品具有良好的加工性能。

    Process for polymerizing .alpha.-olefines
    7.
    发明授权
    Process for polymerizing .alpha.-olefines 失效
    聚合{60-烯烃的方法

    公开(公告)号:US3951935A

    公开(公告)日:1976-04-20

    申请号:US476584

    申请日:1974-06-05

    CPC classification number: C08F10/00

    Abstract: Essentially amorphous polyolefines of medium molecular weight are prepared by polymerization of .alpha.-olefines in the presence of a Ziegler supported catalyst. This catalyst consists of the reaction product of the chloride and/or alcoholates of the tetravalent titanium and of an alcoholate and/or a magnesium compound containing hydroxyl groups and of an aluminiumorganic compound containing chlorine, in which the proportion Al : Cl is 4:1 to 0.8:1. The polymerization is carried out at a temperature of from 100.degree. to 160.degree.C.

    Abstract translation: 通过在齐格勒载体催化剂存在下聚合α-烯烃制备中等分子量的基本上无定形的聚烯烃。 该催化剂由四价钛和醇化物的氯化物和/或醇化物和含羟基的镁化合物和含氯的有机铝化合物的反应产物组成,其中Al:Cl的比例为4:1 至0.8:1。 聚合在100至160℃的温度下进行。

    Sinterable, finely particular molding composition based on vinyl
chloride polymers
    8.
    发明授权
    Sinterable, finely particular molding composition based on vinyl chloride polymers 失效
    基于氯乙烯聚合物的可烧结,精细特殊的模塑组合物

    公开(公告)号:US4636547A

    公开(公告)日:1987-01-13

    申请号:US756970

    申请日:1985-07-19

    Abstract: A molding composition which is essentially composed of a mixture of at least two polymers based on vinyl chloride and at least one water-soluble surfactant is described. One of the polymers is a sinterable vinyl chloride/alkyl acrylate copolymer which can contain, in addition, polymerized units of vinyl acetate and ethylene. At least one further polymer is a vinyl chloride polymer which can contain up to 5% by weight of polymerized units of vinyl acetate and ethylene. The molding composition is suitable for the production of sintered, porous, flexible moldings, in particular separator compartments for electric cells.

    Abstract translation: 描述了基本上由基于氯乙烯和至少一种水溶性表面活性剂的至少两种聚合物的混合物组成的模塑组合物。 其中一种聚合物是可烧结的氯乙烯/丙烯酸烷基酯共聚物,此外还可包含乙酸乙烯酯和乙烯的聚合单元。 至少一种另外的聚合物是氯乙烯聚合物,其可以含有高达5重量%的乙酸乙烯酯和乙烯的聚合单元。 该模塑组合物适用于生产烧结,多孔,柔性模制品,特别是用于电池的隔离隔室。

    Process for preparing vinyl chloride polymers
    9.
    发明授权
    Process for preparing vinyl chloride polymers 失效
    制备氯乙烯聚合物的方法

    公开(公告)号:US4464516A

    公开(公告)日:1984-08-07

    申请号:US445966

    申请日:1982-12-01

    CPC classification number: C08F2/004

    Abstract: A process is described for preparing vinyl chloride polymers. The polymerization is carried out in an apparatus the inside walls and internal fitments of which have been coated with a reaction product which forms on reacting certain silanes with inhibitors for free-radical polymerizations and which contain in the molecule at least one aromatic or at least one quinonoid ring and at least one hydrogen atom which is bonded to an oxygen, sulfur or nitrogen atom with subsequent reaction with water, drying and heat treatment.The wall-deposit formation observed with the new process is markedly smaller, in particular after several polymerization batches, than in the case of known processes.

    Abstract translation: 描述了制备氯乙烯聚合物的方法。 聚合在设备中进行,其内壁和内部装置已经涂覆有反应产物,反应产物在某些硅烷上与形成自由基聚合的抑制剂形成,并且在分子中含有至少一个芳族或至少一个 醌型环和至少一个与氧,硫或氮原子键合的氢原子,随后与水反应,干燥和热处理。 与已知方法相比,用新方法观察到的壁沉积形成显着较小,特别是在几次聚合批次之后。

    Continuous process for the production of vinyl chloride polymers in
aqueous suspension
    10.
    发明授权
    Continuous process for the production of vinyl chloride polymers in aqueous suspension 失效
    在水性悬浮液中生产氯乙烯聚合物的连续方法

    公开(公告)号:US4456735A

    公开(公告)日:1984-06-26

    申请号:US406219

    申请日:1982-08-09

    CPC classification number: C08F14/06

    Abstract: The process is described for the continuous suspension polymerization of vinyl chloride in aqueous phase, in which the polymerization mixture is subjected, in 2 zones, to treatment employing different process parameters in respect of final conversion, dwell time, number of theoretical cascade stages and stirrer power applied. This procedure gives, at good space-time yields, very uniform products which have a narrow particle size distribution, a high bulk density, good flow and a low speck count. In spite of using standard kettle material, only a very low formation of deposit on the kettle walls is observed.

    Abstract translation: 描述了将氯乙烯在水相中连续悬浮聚合的过程,其中将聚合混合物在2个区域中进行处理,使用关于最终转化,停留时间,理论级联级数和搅拌器的不同工艺参数 施加电力。 该程序以良好的时空产率提供了具有窄粒度分布,高体积密度,良好流动性和低斑点数的非常均匀的产品。 尽管使用标准的水壶材料,但在釜壁上只形成非常低的沉积物。

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