Thermoplastics, reinforced with glass fiber mats, which possess improved
rigidity
    1.
    发明授权
    Thermoplastics, reinforced with glass fiber mats, which possess improved rigidity 失效
    具有改善刚性的玻璃纤维毡增强的热塑性塑料

    公开(公告)号:US4146528A

    公开(公告)日:1979-03-27

    申请号:US874143

    申请日:1978-02-01

    CPC分类号: C08K7/00 Y10T442/67

    摘要: Thermoplastics reinforced with glass fiber mats contain from 10 to 60% by weight of such mats and from 5 to 60% by weight of a finely divided inert filler, the sum of the percentages by weight of glass fiber mats and filler being not greater than 70% by weight. The inert filler is a talc, having a foliated crystalline structure, which has a mean flake thickness of not more than 5 .mu.m and a ratio of mean flake diameter to mean flake thickness of from 5:1 to 500:1. When processing the thermoplastic filled with talc and glass fiber mats, homogeneous impregnation of the glass fiber mats with the filled thermoplastic is achieved.

    摘要翻译: 用玻璃纤维垫增强的热塑性塑料含有10至60重量%的这种垫和5至60重量%的细碎惰性填料,玻璃纤维垫和填料的重量百分比之和不大于70 重量%。 惰性填料是具有叶片结晶结构的滑石,其平均薄片厚度不大于5μm,平均薄片直径与平均薄片厚度之比为5:1至500:1。 当处理填充有滑石和玻璃纤维垫的热塑性塑料时,实现了用填充的热塑性材料均匀地浸渍玻璃纤维垫。

    Manufacture of electrically conductive polyolefin moldings, and their use
    7.
    发明授权
    Manufacture of electrically conductive polyolefin moldings, and their use 失效
    制造导电聚烯烃模制品及其用途

    公开(公告)号:US4350652A

    公开(公告)日:1982-09-21

    申请号:US254937

    申请日:1981-04-16

    摘要: A process for the preparation of finely divided polyolefin molding materials from 100 parts by weight of a polyolefin and from 0.01 to 30 parts by weight of an electrically conductive additive, with or without other additives, wherein the mixture of the finely divided polyolefin particles and the electrically conductive additives is brought to the crystallite melting point of the polyolefin by the heating effect of the mixing action, and is then brought to a temperature which is from 3.degree. to 40.degree. C. above the said crystallite melting point while being subjected to a defined mixing intensity, after which the mixture is either cooled within 120 seconds or is directly compression-molded.

    摘要翻译: 一种由100重量份的聚烯烃和0.01至30重量份的具有或不含其它添加剂的导电添加剂制备细分散的聚烯烃模塑材料的方法,其中细分散的聚烯烃颗粒和 导电性添加剂通过混合作用的加热效果达到聚烯烃的微晶熔点,然后在高于所述微晶熔点的温度下升温至3〜40℃,同时进行 混合物在120秒内冷却或直接压缩成型。

    Continuous hydrolytic preparation of polylactams
    8.
    发明授权
    Continuous hydrolytic preparation of polylactams 失效
    多聚内酰胺的连续水解制备

    公开(公告)号:US4539391A

    公开(公告)日:1985-09-03

    申请号:US581711

    申请日:1984-02-21

    IPC分类号: C08G69/00 C08G69/16

    CPC分类号: C08G69/16

    摘要: Polylactams are prepared continuously by a process in which a lactam containing from 1 to 25% by weight of water is heated in a prepolymerization zone under a pressure of from 1 to 10 bar at from 220.degree. to 280.degree. C. for 1 to 10 minutes, water being vaporized at the same time, with the proviso that the degree of conversion on emergence from the prepolymerization zone is not less than 85%, the prepolymer and the vapor are separated continuously, and the prepolymer is passed into a polymerization zone and is polymerized further under superatmospheric pressure at from 240.degree. to 290.degree. C.

    摘要翻译: 连续制备聚内酰胺,其中将含有1至25重量%的水的内酰胺在预聚合区中在220-280℃的1至10巴的压力下加热1至10分钟 ,同时蒸发水,条件是预聚合区出现的转化度不低于85%,预聚物和蒸气连续分离,预聚物进入聚合区,并且是 在240〜290℃的超大气压下进一步聚合。

    Thermoplastic molding materials based on nylons and ethylene copolymers
    9.
    发明授权
    Thermoplastic molding materials based on nylons and ethylene copolymers 失效
    基于尼龙和乙烯共聚物的热塑性成型材料

    公开(公告)号:US4847330A

    公开(公告)日:1989-07-11

    申请号:US135262

    申请日:1987-12-21

    摘要: Thermoplastic molding materials contain, as essential components,(A) from 40 to 95% by weight of a nylon and(B) from 5 to 60% by weight of a noncrosslinked copolymer based on(a) from 55 to 79.5% by weight of ethylene,(b) from 20 to 40% by weight of one or more primary or secondary C.sub.2 -C.sub.8 -alkyl esters of acrylic acid or methacrylic acid,(c) from 0.49 to 8% by weight of a monomer having an acid functional group or a latent acid functional group, or of an epoxy-containing monomer of an ethylenically unsaturated monocarboxylic acid, and(d) from 0.01 to 2% by weight of an ethylenically unsaturated dicarboxylic acid or of an anhydride of such an acid.

    摘要翻译: 热塑性成型材料含有(A)40至95重量%的尼龙和(B)5至60重量%的非交联共聚物,其基于(a)55至79.5重量%的 乙烯,(b)20至40重量%的一种或多种丙烯酸或甲基丙烯酸的一级或多级C 2 -C 8 - 烷基酯,(c)0.49至8重量%的具有酸官能团的单体 或潜在酸官能团,或烯属不饱和一元羧酸的含环氧基单体,和(d)0.01至2重量%的烯键式不饱和二羧酸或这种酸的酸酐。