Preparation of polyphenylene ethers
    31.
    发明授权
    Preparation of polyphenylene ethers 失效
    聚苯醚的制备

    公开(公告)号:US4618668A

    公开(公告)日:1986-10-21

    申请号:US722154

    申请日:1985-04-11

    IPC分类号: C08G65/44 C08G65/46

    CPC分类号: C08G65/44

    摘要: High molecular weight polyphenylene ethers are prepared from monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a solvent and of a catalyst complex consisting of a copper salt and an organic amine of the general formula ##STR1## where R.sup.1 is C.sub.2 -C.sub.20 -alkylidene, preferably C.sub.2 -C.sub.12 -alkylidene, or alkenylidene, R.sup.2 is H or C.sub.1 -C.sub.12 -alkyl, preferably C.sub.1 -C.sub.4 -alkyl, or C.sub.5 -C.sub.8 -cycloalkyl, each of which is unsubstituted or substituted by functional groups, and n is an integer from 1 to 4, preferably 1 or 2. Preferred functional groups are --OR.sup.3, --NHR.sup.3 or --SR.sup.3, in which R.sup.3 is H C.sub.1 -C.sub.12 -alkyl or C.sub.5 -C.sub.8 -cycloalkyl, and the most suitable amines are 3-tert.-butoxypropylamine, 4-tert.-butoxybutylamine, 3-tert.-butoxy-2-methylpropylamine, 3-tert.-butoxy-2,3-dimethylpropylamine, 3-tert.-butoxy-2-methyloctylamine and N-methyl-N-(4-tert.-butoxybutyl)-amine. The polyphenylene ethers can be processed to moldings by a thermoplastic method.

    摘要翻译: 高分子量聚苯醚通过在溶剂存在下与氧气的氧化偶联反应和由通式为“IMAGE”的铜盐和有机胺组成的催化剂络合物由一元酚制备,其中R1为C2-C20 亚烷基,优选C 2 -C 12亚烷基或亚烯基,R 2是H或C 1 -C 12烷基,优选C 1 -C 4 - 烷基或C 5 -C 8 - 环烷基,其各自是未取代的或被官能团取代,n 是1至4的整数,优选1或2.优选的官能团是-OR 3,-NHR 3或-SR 3,其中R 3是H-C 1 -C 12 - 烷基或C 5 -C 8 - 环烷基,最合适的胺是3 叔丁氧基丙基胺,4-叔丁氧基丁胺,3-叔丁氧基-2-甲基丙胺,3-叔丁氧基-2,3-二甲基丙胺,3-叔丁氧基-2-甲基辛胺和N- 甲基-N-(4-叔丁氧基丁基) - 胺。 可以通过热塑性方法将聚苯醚加工成模制品。

    Continuous preparation of rubber-modified polymers of vinyl-aromatics
    32.
    发明授权
    Continuous preparation of rubber-modified polymers of vinyl-aromatics 失效
    连续制备乙烯基芳烃的橡胶改性聚合物

    公开(公告)号:US4567232A

    公开(公告)日:1986-01-28

    申请号:US650568

    申请日:1984-09-13

    CPC分类号: C08F279/02 C08F291/02

    摘要: A process for the continuous preparation of rubber-modified polymers of vinyl-aromatics, wherein a mixture which contains a monomeric aromatic vinyl compound and from 3 to 30% by weight, based on the monomer, of an elastomeric polymer, with or without a solvent, is polymerized, in the presence of a free radical initiator and in the presence or absence of a mercaptan as chain transfer agent, at from 80.degree. to 180.degree. C., with stirring, in a cascade of two or more isothermally operated reaction zones and of one or more additional reaction zones which can be operated isothermally or with a rising temperature profile in such a way that the residence time of the reactants in the first reaction zone is .ltoreq.35 minutes. The polymer obtained is freed from vinyl-aromatic monomer, and from any solvent, in a devolatilization zone. The product is useful for the production of injection moldings.

    摘要翻译: 用于连续制备乙烯基芳族化合物的橡胶改性聚合物的方法,其中含有单体芳族乙烯基化合物和基于单体的3-30重量%的弹性体聚合物的混合物,具有或不具有溶剂 在存在自由基引发剂的情况下,在作为链转移剂的硫醇存在或不存在下,在80-180℃下,在搅拌下,在两个或更多个等温操作的反应区的级联中聚合 以及一个或多个另外的反应区,其可以等温或以升高的温度曲线操作,使得反应物在第一反应区中的停留时间为35分钟。 获得的聚合物在脱挥发分区域中不含乙烯基芳族单体和任何溶剂。 该产品可用于生产注射成型品。

    Treatment of (Co)polymers to remove residual monomers
    34.
    发明授权
    Treatment of (Co)polymers to remove residual monomers 失效
    (Co)聚合物的处理以除去残留的单体

    公开(公告)号:US4503219A

    公开(公告)日:1985-03-05

    申请号:US489558

    申请日:1983-04-28

    IPC分类号: C08F6/00 C08G6/00 C08J3/00

    CPC分类号: C08F6/006

    摘要: (Co)polymers which are composed of one or more monomers from the group comprising(a) the vinyl-aromatic monomers and(b) the ethylenically unsaturated monomersand furthermore contain one or more monomer components (a) or (b), or (a) and (b), as unreacted residual monomers are treated at above the glass temperature of the (co)polymer and in the presence of one or more assistants, which have been added to the (co)polymer. The assistant used is a bicyclic compound of the general formula I ##STR1## where X is a methylene, ethylene, 1,1-ethenyl, 1,2-ethenyl, carbonyl, azo, amino, ether or thioether group which is unsubstituted or substituted by halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyl, carboxyalkyl, an ether group or a thioether group, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen, halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyalkyl or nitrile, R.sup.5 and R.sup.6 are each hydrogen, halogen, alkyl or carboxyalkyl, and R.sup.7 and R.sup.8 are each hydrogen, halogen, alkyl, alkenyl, aryl, carboxyalkyl, carboxyl or nitrile.

    摘要翻译: (a)乙烯基芳族单体和(b)烯键式不饱和单体并且还含有一种或多种单体组分(a)或(b)或(a)的单体组分 a)和(b)中,作为未反应的残余单体在(共)聚合物的玻璃化温度以上和在已加入到(共))聚合物中的一种或多种助剂的存在下进行处理。 使用的助剂是通式I的双环化合物,其中X是未取代或取代的亚甲基,亚乙基,1,1-乙烯基,1,2-乙烯基,羰基,偶氮,氨基,醚或硫醚基 卤素,烷基,烯基,环烷基,芳基,羧基,羧基烷基,醚基或硫醚基,R1,R2,R3和R4各自为氢,卤素,烷基,烯基,环烷基,芳基,羧烷基或腈,R5和 R 6各自为氢,卤素,烷基或羧基烷基,R 7和R 8各自为氢,卤素,烷基,烯基,芳基,羧基烷基,羧基或腈。

    Thermoplastic molding materials
    35.
    发明授权
    Thermoplastic molding materials 失效
    热塑性成型材料

    公开(公告)号:US4433102A

    公开(公告)日:1984-02-21

    申请号:US399208

    申请日:1982-07-19

    IPC分类号: C08L25/12 C08L51/00

    CPC分类号: C08L25/12 C08L51/003

    摘要: A thermoplastic molding material contains 50-90% by weight of a hard component A comprising one or more copolymers of styrene and/or .alpha.-methylstyrene with acrylonitrile, and 50-10% by weight of a graft copolymer B comprising 40-80% by weight of a crosslinked acrylate polymer which has a mean particle size greater than 0.8 .mu.m (d.sub.50 value of the cumulative mass distribution) and onto which 20-60% by weight of a mixture of styrene and acrylonitrile in a weight ratio of from 88:12 to 65:35 is grafted.The novel molding material is used for the production of moldings.

    摘要翻译: 热塑性成型材料含有50-90重量%的包含苯乙烯和/或α-甲基苯乙烯与丙烯腈的一种或多种共聚物的硬组分A和50-10重量%的接枝共聚物B,其包含40-80% 平均粒度大于0.8μm的交联丙烯酸酯聚合物的重量(累积质量分布的d50值),其中以重量比为88:20的苯乙烯和丙烯腈的混合物的20-60重量% 12至65:35接枝。 该新型成型材料用于生产模制品。

    Preparation of polyphenylene ethers
    38.
    发明授权
    Preparation of polyphenylene ethers 失效
    聚苯醚的制备

    公开(公告)号:US4404359A

    公开(公告)日:1983-09-13

    申请号:US399211

    申请日:1982-07-19

    IPC分类号: C08G65/00 C08G65/38 C08G65/44

    CPC分类号: C08G65/44

    摘要: A process for the preparation of high molecular weight polyphenylene ethers from monohydric phenols which have alkyl substituents in both ortho-positions and may additionally have an alkyl substituent in one meta-position but not in the para-position, by an oxidative coupling reaction, employing oxygen, at from 10.degree. to 25.degree. C., in the presence of a catalyst complex comprising a copper salt and an N-substituted imidazole, in the presence of an aromatic C.sub.8 -C.sub.10 -hydrocarbon solvent.N-Methylimidazole, N-ethylimidazole, N-isopropylimidazole, N-n-butylimidazole, N-cyclohexylimidazole, N-octylimidazole and N-phenylimidazole are preferably used as the imidazole, advantageously in amounts of from 0.5 to 5 percent by weight.

    摘要翻译: 一种从一元酚制备高分子量聚苯醚的方法,其在两个邻位具有烷基取代基,并且可以通过氧化偶联反应另外在一个间位而不是在对位具有烷基取代基,采用 在含有铜盐和N-取代的咪唑的催化剂络合物存在下,在芳族C 8 -C 10 - 烃溶剂存在下,在10〜25℃下进行。 N-甲基咪唑,N-乙基咪唑,N-异丙基咪唑,N-正丁基咪唑,N-环己基咪唑,N-辛基咪唑,N-苯基咪唑优选用作咪唑,有利地为0.5〜5重量%。