Continuous hydrolytic preparation of polylactams
    3.
    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。

    Thermoplastics, reinforced with glass fiber mats, which possess improved
rigidity
    5.
    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。

    Preparation of high-impact nylon molding materials
    9.
    发明授权
    Preparation of high-impact nylon molding materials 失效
    高冲击尼龙成型材料的制备

    公开(公告)号:US4574131A

    公开(公告)日:1986-03-04

    申请号:US645813

    申请日:1984-08-30

    CPC分类号: C08L77/00

    摘要: A process for the preparation of high-impact nylon molding materials, containing 30-88% by weight of a thermoplastic nylon, 10-50% by weight of an organosilane-coated silicate reinforcing filler, 0.1-5% by weight of a polyurethane ionomer, 2-30% by weight of a carboxyl-containing thermoplastic elastomer and, where appropriate, effective amounts of conventional additives, by mixing the silicate filler, coated with an organosilane and a polyurethane ionomer, with the thermoplastic elastomer and the nylon at above the melting point of the nylon, wherein, in a first stage, the silicate filler coated with an organosilane and a polyurethane ionomer is mixed with the nylon at above the melting point of the latter, and in a second stage the thermoplastic elastomer is finely dispersed in the filler-containing nylon at above the melting point of the latter.

    摘要翻译: 一种用于制备高冲击尼龙成型材料的方法,其包含30-88重量%的热塑性尼龙,10-50重量%的有机硅烷涂覆的硅酸盐增强填料,0.1-5重量%的聚氨酯离聚物 ,2-30重量%的含羧基的热塑性弹性体,并且在合适的情况下,通过将涂覆有机硅烷和聚氨酯离子交联聚合物的硅酸盐填料与热塑性弹性体和尼龙混合,在适当的情况下, 尼龙的熔点,其中,在第一阶段中,涂覆有有机硅烷和聚氨酯离子交联聚合物的硅酸盐填料在尼龙的熔点之上与尼龙混合,第二阶段将热塑性弹性体细分散在 含有填料的尼龙在其熔点以上。

    Thermoplastic molding materials based on nylons and ethylene copolymers
    10.
    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。