Self-extinguishing thermoplastic molding compositions
    14.
    发明授权
    Self-extinguishing thermoplastic molding compositions 失效
    自熄性热塑性成型组合物

    公开(公告)号:US4200702A

    公开(公告)日:1980-04-29

    申请号:US912358

    申请日:1978-06-05

    摘要: Thermoplastic molding compositions based on rubber-modified styrene-acrylonitrile copolymers containing a halogenated styrene oligomer as the effective flame-proofing agent which is sufficiently heat-stable, does not interfere with processing on conventional machinery, does not corrode or cause coatings on such machinery, and has virtually no adverse effect on the impact strength of the polymers. The flameproofing agent as a rule has a degree of polymerization of from 3 to 200 and can be incorporated into the polymer by conventional methods; the polymer may or may not contain additional synergistic agents and processing auxiliaries, which are incorporated in the conventional manner and in the conventional amounts.

    摘要翻译: 含有卤代苯乙烯低聚物作为充分热稳定性的有效阻燃剂的橡胶改性苯乙烯 - 丙烯腈共聚物的热塑性模塑组合物不影响常规机械的加工,不会在这种机械上腐蚀或引起涂层, 并且对聚合物的冲击强度几乎没有不利影响。 通常防火剂的聚合度为3〜200,可以通过常规方法加入到聚合物中; 聚合物可以包含或可以不含有以常规方式和常规量掺入的其它协同剂和加工助剂。

    Polymerizable compounds containing tribromomethyl groups
    15.
    发明授权
    Polymerizable compounds containing tribromomethyl groups 失效
    含有三溴甲基的可聚合化合物

    公开(公告)号:US4158097A

    公开(公告)日:1979-06-12

    申请号:US782613

    申请日:1977-03-30

    IPC分类号: C08F20/24 C07C69/54

    CPC分类号: C08F20/24

    摘要: New compounds containing tribromomethyl groups, of the general formula ##STR1## WHEREIN X is chlorine or bromine, R is hydrogen or methyl and R.sup.1 is hydrogen or a group of the formula --COO--CHX--CBr.sub.3 and a process for their preparation. The compounds may be used for the manufacture of homopolymers or copolymers which find diverse uses, eg. for the manufacture of moldings, coatings or adhesives. The compounds are manufactured by reacting the corresponding acid chlorides or acid bromides with equivalent amounts of tribromoacetaldehyde. The acid chlorides and bromides have the formula ##STR2## wherein X is chlorine or bromine, R is hydrogen or methyl and R.sup.2 is hydrogen or --COX. The reaction is carried out in the presence of from 0.1 to 10 per cent by weight of a Lewis acid, preferably AlBr.sub.3 or FeBr.sub.3, at from 0 to 80.degree. C., generally with reaction times of from 1 to 10 hours, preferably from 2 to 3 hours. The reaction is carried out without solvents or, with particular advantage, in a solution, of about 50 per cent strength, in an inert aliphatic, cycloaliphatic or aromatic solvent, eg. hexane mixtures, octane mixtures, cyclohexane or toluene. From 0.1 to 10 per cent by weight of magnesium oxide is added to the reaction mixture, prior to the distillation to achieve good yields and compound purity.

    摘要翻译: 含有三溴甲基的新化合物,通式为:其中X为氯或溴,R为氢或甲基,R 1为氢或式-COO-CHX-CBr 3基团及其制备方法。 这些化合物可以用于制造均聚物或共聚物,其可以找到不同的用途,例如。 用于制造模制品,涂料或粘合剂。 该化合物通过使相应的酰氯或酸性溴化物与等量的三溴乙醛反应制备。 酰氯和溴化物具有式“其中X是氯或溴,R是氢或甲基,R 2是氢或-COX”。 反应在0.1至10重量百分比的路易斯酸,优选AlBr 3或FeBr 3存在下进行,在0至80℃下,通常反应时间为1至10小时,优选2 至3小时。 该反应在惰性脂族,脂环族或芳族溶剂(例如)中没有溶剂或特别有利的是在约50%的强度溶液中进行。 己烷混合物,辛烷混合物,环己烷或甲苯。 在蒸馏之前,将0.1至10重量%的氧化镁加入到反应混合物中以获得良好的收率和化合物纯度。

    Preparation of electrically conductive polymers
    19.
    发明授权
    Preparation of electrically conductive polymers 失效
    导电聚合物的制备

    公开(公告)号:US4407739A

    公开(公告)日:1983-10-04

    申请号:US344020

    申请日:1982-01-29

    摘要: A process for the preparation of electrically conductive polymers which have conductivities greater than 10.sup.-2 S/cm and possess improved stability to oxygen, comprising treating an organic unsaturated polymer of the series of the polyphenylenes, heterophenylenes and polyacetylenes, in the absence of moisture and of oxygen, first with an organic nitroso compound and then with a conventional dopant, the latter being, in particular H.sub.2 SO.sub.4, AsF.sub.5, SbF.sub.5, UF.sub.6, SbCl.sub.5, AlCl.sub.3, BF.sub.3, CF.sub.3 SO.sub.3 H, VOCl.sub.3, HClO.sub.4, NO.sup.+ SbF.sub.6.sup.-, NO.sub.2.sup.+ SbF.sub.6.sup.-, NO.sup.+ AsF.sub.6, NO.sup.+ PF.sub.6.sup.-, I.sub.2, Br.sub.2, ICl, PF.sub.5, CrO.sub.2 Cl.sub.2, NO.sub.2.sup.+ PF.sub.6.sup.-, NO.sup.+ BF.sub.4.sup.-, NO.sup.+ ClO.sub.4.sup.-, (CF.sub.3).sub.2 SO.sub.4, NbF.sub.5, TaF.sub.5, WF.sub.6, FeCl.sub.3, CdCl.sub.2, 2,4,6-trinitrophenol, 2,4,6-trinitrophenylsulfonic acid or 2,4,6-trinitrophenylcarboxylic acid or lithium, sodium, potassium, calcium, barium, radium or an amide of these metals.

    摘要翻译: 一种制备导电聚合物的方法,其导电率大于10-2S / cm并且具有改善的对氧气的稳定性,包括在没有水分的情况下处理一系列聚苯,异亚苯基和聚乙炔的有机不饱和聚合物,以及 的氧,首先用有机亚硝基化合物,然后与常规掺杂剂,后者特别是H 2 SO 4,AsF 5,SbF 5,UF 6,SbCl 5,AlCl 3,BF 3,CF 3 SO 3 H,VOCl 3,HClO 4,NO + SbF 6 - ,NO 2 + SbF 6 - ,NO + AsF6,NO + PF6-,I2,Br2,ICl,PF5,CrO2Cl2,NO2 + PF6-,NO + BF4-,NO + ClO4-,(CF3)2SO4,NbF5,TaF5,WF6,FeCl3,CdCl2 ,2,4,6-三硝基苯酚,2,4,6-三硝基苯磺酸或2,4,6-三硝基苯基羧酸或这些金属的锂,钠,钾,钙,钡,镭或酰胺。