Acrylonitrile polymer, process for the preparation thereof and fiber
prepared therefrom
    1.
    发明授权
    Acrylonitrile polymer, process for the preparation thereof and fiber prepared therefrom 失效
    丙烯腈聚合物,其制备方法和由其制备的纤维

    公开(公告)号:US4513126A

    公开(公告)日:1985-04-23

    申请号:US444327

    申请日:1982-11-24

    CPC分类号: C08F220/46

    摘要: An acrylonitrile polymer comprising acrylonitrile, at least one of vinyl chloride and vinylidene chloride, a sulfo group-containing vinyl monomer having a higher reactivity ratio than acrylonitrile and a methallyl sulfonic acid monomer, which is prepared by conducting a polymerization in a manner such that at least half amount of the methallyl sulfonic acid monomer to be used is added to the polymerization system in a substantial period of adding the sulfo group-containing vinyl monomer having a higher reactivity ratio than acrylonitrile to the system. The acrylonitrile polymer is suitable for the preparation of a modacrylic synthetic fiber, and the modacrylic fiber prepared therefrom has excellent flame resistance, devitrification preventing property and dyeing affinity.

    摘要翻译: 包含丙烯腈的丙烯腈聚合物,氯乙烯和偏二氯乙烯中的至少一种,具有比丙烯腈更高的反应性比的含磺基的乙烯基单体和甲代烯丙基磺酸单体,其通过以如下方式进行聚合而制备: 在向系统中加入具有比丙烯腈更高的反应性比例的含磺基的乙烯基单体的相当长的时间内,将至少一半的所用的甲代烯丙基磺酸单体加入到聚合体系中。 丙烯腈聚合物适用于制备改性聚丙烯腈合成纤维,由其制备的改性聚丙烯腈纤维具有优异的阻燃性,防失透性和染色亲和力。

    Basic metal nitrate, process for producing the same and gas generating agent composition
    3.
    发明申请
    Basic metal nitrate, process for producing the same and gas generating agent composition 审中-公开
    碱金属硝酸盐,其制备方法和气体发生剂组合物

    公开(公告)号:US20070119530A1

    公开(公告)日:2007-05-31

    申请号:US11216149

    申请日:2005-09-01

    IPC分类号: C06B31/00

    摘要: A basic metal nitrate suitable as an oxidizing agent for a gas generating agent, which is a basic metal nitrate having a good thermal stability and meeting at least one requirement of the following (a) to (d): (a) a particle diameter of 0.5 to 40 μm; (b) a degree of crystallinity having 0.4 deg or less of a half band width of the peak in the X-ray analysis; (c) an initiation temperature of weight loss being 220° C. or higher according to TG-DTA analysis; and (d) an impurity content of 1,000 ppm or less based on Na atom. Also, a gas generating composition which has a low toxicity, a high burning rate, and a low combustion temperature and which is used in a gas generator for an air bag. The gas generating composition comprises (a) tetrazole derivatives, guanidine derivatives or a mixture thereof, (b) a basic metal nitrate, and (c) a binder and/or a slag-forming agent.

    摘要翻译: 适合作为气体发生剂氧化剂的碱金属硝酸盐,其是具有良好热稳定性并满足以下(a)至(d)的至少一项要求的碱金属硝酸盐:(a) 0.5至40 mum; (b)在X射线分析中的峰的半带宽度为0.4度以下的结晶度; (c)根据TG-DTA分析,重量损失的起始温度为220℃以上; 和(d)基于Na原子的杂质含量为1,000ppm以下。 另外,一种气体发生剂组合物,其具有低毒性,高燃烧速率和低燃烧温度,并且用于气囊的气体发生器。 气体发生组合物包含(a)四唑衍生物,胍衍生物或其混合物,(b)碱金属硝酸盐,和(c)粘合剂和/或成渣剂。

    Nondirectional acoustic generator and speaker system
    6.
    发明授权
    Nondirectional acoustic generator and speaker system 失效
    非定向声发生器和扬声器系统

    公开(公告)号:US5253301A

    公开(公告)日:1993-10-12

    申请号:US499705

    申请日:1990-03-27

    IPC分类号: H04R1/02 H04R1/28 H04R1/40

    CPC分类号: H04R1/30 H04R1/2826 H04R1/403

    摘要: A nondirectional acoustic generator includes two acoustic generator units which are disposed facing each other as near as possible to the extent that diaphragms thereof do not become in contact with each other, drive units of the acoustic generator units being connected in series or in parallel to drive the acoustic generator units in phase and generate air compression sound waves which are radiated in the circumferential direction of the diaphragms.A speaker system includes a plurality of nondirectional acoustic generators coaxially disposed so as to align the centers of respective diaphragms and make the phases at sound generating areas coincident with each other.

    Basic metal nitrate, process for producing the same and gas generating agent composition
    8.
    发明授权
    Basic metal nitrate, process for producing the same and gas generating agent composition 有权
    碱金属硝酸盐,其制备方法和气体发生剂组合物

    公开(公告)号:US08613821B2

    公开(公告)日:2013-12-24

    申请号:US12877632

    申请日:2010-09-08

    摘要: Provided is a basic metal nitrate suitable as an oxidizing agent for a gas generating agent, which is a basic metal nitrate having a good thermal stability and meeting at least one requirement of the following (a) to (d): (a) a particle diameter of 0.5 to 40 μm; (b) a degree of crystallinity having 0.4 deg or less of a half band width of the peak in the X-ray analysis; (c) an initiation temperature of weight loss being 220° C. or higher according to TG-DTA analysis; and (d) an impurity content of 1,000 ppm or less based on Na atom. Further provided is a gas generating composition which has a low toxicity, a high burning rate and a low combustion temperature and which is used in a gas generator for an air bag. The gas generating composition comprises (a) tetrazole derivatives, guanidine derivatives or a mixture thereof, (b) a basic metal nitrate and (c) a binder and/or a slag-forming agent.

    摘要翻译: 提供适合作为气体发生剂的氧化剂的碱性金属硝酸盐,其是具有良好热稳定性并满足以下(a)至(d)的至少一项要求的碱性金属硝酸盐:(a)颗粒 直径0.5〜40um; (b)在X射线分析中的峰的半带宽度为0.4度以下的结晶度; (c)根据TG-DTA分析,重量损失的起始温度为220℃以上; 和(d)基于Na原子的杂质含量为1,000ppm以下。 还提供了一种气体发生组合物,其具有低毒性,高燃烧速率和低燃烧温度,并且其用于气囊的气体发生器。 气体发生组合物包含(a)四唑衍生物,胍衍生物或其混合物,(b)碱金属硝酸盐和(c)粘合剂和/或成渣剂。

    BASIC METAL NITRATE, PROCESS FOR PRODUCING THE SAME AND GAS GENERATING AGENT COMPOSITION
    10.
    发明申请
    BASIC METAL NITRATE, PROCESS FOR PRODUCING THE SAME AND GAS GENERATING AGENT COMPOSITION 有权
    基本金属硝酸盐,其生产方法和气体生成剂组合物

    公开(公告)号:US20100326574A1

    公开(公告)日:2010-12-30

    申请号:US12877632

    申请日:2010-09-08

    IPC分类号: C06B45/04 C06B31/00 C06B45/10

    摘要: Provided is a basic metal nitrate suitable as an oxidizing agent for a gas generating agent, which is a basic metal nitrate having a good thermal stability and meeting at least one requirement of the following (a) to (d): (a) a particle diameter of 0.5 to 40 μm; (b) a degree of crystallinity having 0.4 deg or less of a half band width of the peak in the X-ray analysis; (c) an initiation temperature of weight loss being 220° C. or higher according to TG-DTA analysis; and (d) an impurity content of 1,000 ppm or less based on Na atom. Further provided is a gas generating composition which has a low toxicity, a high burning rate and a low combustion temperature and which is used in a gas generator for an air bag. The gas generating composition comprises (a) tetrazole derivatives, guanidine derivatives or a mixture thereof, (b) a basic metal nitrate and (c) a binder and/or a slag-forming agent.

    摘要翻译: 提供适合作为气体发生剂的氧化剂的碱性金属硝酸盐,其是具有良好热稳定性并满足以下(a)至(d)的至少一项要求的碱性金属硝酸盐:(a)颗粒 直径为0.5〜40μm; (b)在X射线分析中的峰的半带宽度为0.4度以下的结晶度; (c)根据TG-DTA分析,重量损失的起始温度为220℃以上; 和(d)基于Na原子的杂质含量为1,000ppm以下。 还提供了一种气体发生组合物,其具有低毒性,高燃烧速率和低燃烧温度,并且其用于气囊的气体发生器。 气体发生组合物包含(a)四唑衍生物,胍衍生物或其混合物,(b)碱金属硝酸盐和(c)粘合剂和/或成渣剂。