Flame-retardant polycarbonate resin composition and molded articles
    4.
    发明授权
    Flame-retardant polycarbonate resin composition and molded articles 失效
    阻燃聚碳酸酯树脂组合物和模塑制品

    公开(公告)号:US06827882B1

    公开(公告)日:2004-12-07

    申请号:US09857865

    申请日:2001-06-12

    IPC分类号: C09K2100

    摘要: Provided is a non-halogen, flame-retardant polycarbonate resin composition that comprises a resin mixture of (A) from 60 to 99% by mass of a polycarbonate resin and (B) from 1 to 40% by mass of a polycarbonate copolymer having phosphorus atoms in its main chain, and contains (C) from 0.02 to 5 parts by mass, relative to 100 parts by mass of the resin mixture, of an anti-dripping agent. Also provided are moldings of the composition. The polycarbonate copolymer (B) that has phosphorus atoms in its main chain is typically a polycarbonate copolymer of which the repetitive structural units contain an aromatic organophosphate component. The resin moldings have good impact resistance, good heat resistance and high stiffness intrinsic to polycarbonate resin. Not depositing on the wall of molds, the melt of the resin composition is well flowable and is stably molded into high-quality moldings having good appearance, and its long-run workability is good.

    摘要翻译: 本发明提供一种无卤阻燃聚碳酸酯树脂组合物,其包含(A)60〜99质量%的聚碳酸酯树脂和(B)1〜40质量%的具有磷的聚碳酸酯共聚物的树脂混合物 相对于100质量份的树脂混合物,含有(C)为0.02〜5质量份的防滴落剂。 还提供了组合物的模制品。 在其主链中具有磷原子的聚碳酸酯共聚物(B)通常是重复结构单元含有芳族有机磷酸酯组分的聚碳酸酯共聚物。 树脂模制品具有良好的耐冲击性,良好的耐热性和高硬度聚碳酸酯树脂固有的特性。 不会在模具壁上沉积,树脂组合物的熔体流动性良好,并且稳定地模塑成具有良好外观的高质量模制品,并且其长期加工性良好。

    Crystalline polypropylene and its moldings and films
    8.
    发明授权
    Crystalline polypropylene and its moldings and films 失效
    结晶聚丙烯及其模制品和薄膜

    公开(公告)号:US06639038B2

    公开(公告)日:2003-10-28

    申请号:US09963591

    申请日:2001-09-27

    IPC分类号: C08F11006

    摘要: A first crystalline polypropylene of the present invention satisfies the relationships of the following formulae (1) and (2): &agr;≦−0.42×ln(Mp)+7.3  (1),and Tm>1.85×ln(Mp)+144.5  (2), wherein &agr; is a 0° C. soluble content (% by weight) as measured through programmed-temperature fractionation, Mp is a peak molecular weight in a molecular weight distribution curve as measured through gel permeation chromatography, and Tm is a melting point (° C.) as measured through differential scanning calorimetry. A second crystalline polypropylene of the present invention satisfies the relationship given in the following formula (3): &agr;≦1.11[&eegr;]−0.42+1.40  (3) wherein &agr; is the same as above and [&eegr;] an intrinsic viscosity (dl/g) as measured in a tetralin solvent at 135° C. Moldings and films made of the first or second crystalline polypropylene are highly rigid and have good heat resistance and good scratch resistance.

    摘要翻译: 本发明的第一结晶聚丙烯满足下式(1)和(2)的关系:其中α为通过程序温度分馏法测定的0℃可溶成分(重量%),Mp为峰 通过凝胶渗透色谱法测定的分子量分布曲线中的分子量,Tm是通过差示扫描量热法测定的熔点(℃)。 本发明的第二结晶聚丙烯满足下式(3)中给出的关系:其中α与上述相同,η在135℃下在四氢化萘溶剂中测得的特性粘度(dl / g) 由第一或第二结晶聚丙烯制成的模制品和薄膜是高度刚性的并且具有良好的耐热性和良好的耐擦伤性。

    Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers
    10.
    发明授权
    Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers 失效
    用于烯烃聚合的固体催化剂组分,用于烯烃聚合的催化剂,以及烯烃聚合物的制备方法

    公开(公告)号:US06495639B1

    公开(公告)日:2002-12-17

    申请号:US09665051

    申请日:2000-09-19

    IPC分类号: C08F21000

    CPC分类号: C08F10/00 C08F4/651

    摘要: Provided are a solid catalyst component for olefin polymerization and a catalyst comprising the component for olefin polymerization, in which the electron donor is free from the problem of lacking in safety and sanitation, and is inexpensive and easy to produce, and which exhibit high activity in producing olefin polymers with high stereospecificity, and also a method for producing olefin polymers in the presence of the catalyst. The solid catalyst component comprises titanium, magnesium and an electron donor compound of formula (I): wherein R1 and R2 each represent a linear or branched hydrocarbon residue having from 1 to 20 carbon atoms; R3 represents an alicyclic hydrocarbon residue having from 3 to 20 carbon atoms; and n represents an integer of from 1 to 10. The solid catalyst component is combined with an organic aluminium compound to prepare a catalyst, which is used in producing olefin polymers.

    摘要翻译: 提供了用于烯烃聚合的固体催化剂组分和包含用于烯烃聚合的组分的催化剂,其中电子给体没有安全和卫生缺乏的问题,并且便宜并且易于生产,并且其表现出高的活性 制备具有高立体定向性的烯烃聚合物,以及在催化剂存在下生产烯烃聚合物的方法。 固体催化剂组分包括钛,镁和式(I)的电子给体化合物:其中R 1和R 2各自表示具有1至20个碳原子的直链或支链烃残基; R3表示具有3至20个碳原子的脂环族烃残基; n表示1〜10的整数。将固体催化剂成分与有机铝化合物结合,制备用于制造烯烃聚合物的催化剂。