Process for the preparation of carbonic acid aryl esters of
polyester-diols lengthened via carbonate groups and their use for the
preparation of polyester-diol bis-diphenol carbonates and
polyester/polycarbonates
    72.
    发明授权
    Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups and their use for the preparation of polyester-diol bis-diphenol carbonates and polyester/polycarbonates 失效
    通过碳酸酯基延长的聚酯二醇的碳酸芳酯的制备方法及其用于制备聚酯 - 二醇双二酚碳酸酯和聚酯/聚碳酸酯的用途

    公开(公告)号:US4297455A

    公开(公告)日:1981-10-27

    申请号:US910986

    申请日:1978-05-30

    IPC分类号: C08G63/64 C08G63/00 C08G63/76

    CPC分类号: C08G63/64

    摘要: The present invention relates to a process for the preparation of bis-carbonic acid aryl esters of polyester-diols, lengthened via --OCOO-- groups, characterized in that polyester-diols with molecular weights Mn (number-average) of over 250, preferably over 600, are heated with carbonic acid bis-aryl esters at temperatures between about 100.degree. C. and 200.degree. C., preferably between about 110.degree. C. and 180.degree. C., in vacuo below about 35 mm Hg, preferably between about 25 and 1 mm Hg, in the presence of catalysts, less than one mol of carbonic acid bis-aryl ester being employed per OH group of the polyester-diol and the hydroxyaryl compounds formed being distilled off.The invention further relates to the bis-carbonic acid aryl esters of polyester-diols lengthened via --OCOO-- groups obtained according to the instant invention and their use for the preparation of polyester diol bis-diphenol carbonates, lengthened via carbonate groups, characterized in that polyester-diol bis-aryl carbonates are reacted with a diphenol at a temperature of from about 100.degree. to about 200.degree. C. in vacuo below about 35 mm Hg in the presence of a catalyst, wherein more than 1 mol of diphenol is employed per mol of carbonic acid aryl ester groups of the polyester-diol bis-aryl carbonate, lengthened via carbonate groups, and the resulting hydroxyaryl compound is distilled off.The invention finally relates to the polyester-diol bis-diphenol carbonates, lengthened via carbonate groups obtained according to the instant invention and their use for the preparation of polyester/polycarbonates and the polycarbonate/polyesters so prepared.

    摘要翻译: 本发明涉及通过-OCOO-基团延长的聚酯二醇的双碳酸芳基酯的制备方法,其特征在于分子量Mn(数均分子)超过250的聚酯二醇优选超过 600,在约100℃至200℃之间,优选约110℃至180℃之间的温度下,用碳酸双芳基酯加热,真空度低于约35mmHg,优选约25mm 和1mm Hg,在催化剂的存在下,每聚酯二醇的OH基和所形成的羟基芳基化合物使用少于1摩尔的碳酸双芳基酯。 本发明还涉及通过根据本发明获得的-OCOO-基团延长的聚酯二醇的双碳酸芳基酯及其用于制备通过碳酸酯基团延长的聚酯二醇双 - 二酚酚酸酯的用途,其特征在于 在催化剂存在下,聚酯 - 二醇双芳基碳酸酯与二酚在约100至约200℃的温度下在真空下在约35mm Hg下真空反应,其中每次使用多于1mol的二酚 将通过碳酸酯基延长的聚酯 - 二醇双芳基碳酸酯的碳酸芳基酯基和所得羟基芳基化合物蒸馏出。 本发明最终涉及通过根据本发明获得的碳酸酯基团延长的聚酯 - 二醇双 - 二酚碳酸酯及其制备聚酯/聚碳酸酯和如此制备的聚碳酸酯/聚酯的用途。

    Process for the preparation of carbonic acid aryl esters of
polyester-diols lengthened via carbonate groups
    75.
    发明授权
    Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups 失效
    通过碳酸酯基团延长的聚酯二醇的碳酸芳酯的制备方法

    公开(公告)号:US4217297A

    公开(公告)日:1980-08-12

    申请号:US886212

    申请日:1978-03-13

    CPC分类号: C08G63/64

    摘要: The present invention relates to a process for the preparation of bis-carbonic acid monoaryl esters of polyester-diols, lengthened via --OCOO-- groups, characterized in that polyester-diols with molecular weights Mn (number-average) of over 250, preferably over 600, are heated with carbonic acid bis-aryl esters at temperatures between about 100.degree. C. and 200.degree. C., preferably between about 110.degree. C. and 180.degree. C., in vacuo below about 35 mm Hg, preferably between about 25 and 1 mm Hg, in the presence of catalysts, less than one mol of carbonic acid bis-aryl ester being employed per mol of OH group of the polyester-diol and the hydroxyaryl compounds formed being distilled off.The invention further relates to the bis-carbonic acid aryl esters of polyester-diols lengthened via --OCOO-- groups.

    摘要翻译: 本发明涉及通过-OCOO-基团来制备聚酯二醇的双碳酸单芳基酯的方法,其特征在于分子量Mn(数均分子)超过250的聚酯二醇优选超过 600,在约100℃至200℃之间,优选约110℃至180℃之间的温度下,用碳酸双芳基酯加热,真空度低于约35mmHg,优选约25mm 和1mm Hg,在催化剂的存在下,每摩尔聚酯二醇的OH基和所形成的羟基芳基化合物使用少于1摩尔的碳酸双芳基酯。 本发明还涉及通过-OCOO-基团延长的聚酯二醇的双碳酸芳基酯。

    Power circuit-breaker
    76.
    发明授权
    Power circuit-breaker 失效
    电源断路器

    公开(公告)号:US5898149A

    公开(公告)日:1999-04-27

    申请号:US662939

    申请日:1996-06-12

    摘要: This power circuit-breaker has at least one cylindrically constructed arcing chamber which is provided with a stationary contact, with a moving contact and with a quenching zone between the two contacts. A shaft of the moving contact is permanently connected to a blowout volume which is closed off on the stationary contact side by an insulating nozzle through which at least one flow channel passes. The arcing chamber has a first compression volume which is operatively connected to the blowout volume and to a second compression volume. It is intended to provide a power circuit-breaker in which the blowing-out of the arc with pure SF.sub.6 gas is made stronger. This is achieved by providing a moving auxiliary piston between the first compression volume and the second compression volume and by the auxiliary piston being connected to the moving contact via a direction-changing device.

    摘要翻译: 该电源断路器具有至少一个圆柱形构造的电弧室,该电弧室设置有具有可移动触点的固定触点和两个触点之间的淬火区域。 可移动触点的轴永久地连接到通过至少一个流动通道通过的绝缘喷嘴在固定触点侧封闭的吹出口。 电弧室具有可操作地连接到吹出体积和第二压缩体积的第一压缩体积。 旨在提供一种电源断路器,其中使具有纯SF6气体的电弧吹出更强。 这通过在第一压缩容积和第二压缩容积之间提供移动的辅助活塞,并且辅助活塞经由方向改变装置连接到移动触点来实现。

    Polycarbonate molding compositions
    78.
    发明授权
    Polycarbonate molding compositions 失效
    聚碳酸酯成型组合物

    公开(公告)号:US5126404A

    公开(公告)日:1992-06-30

    申请号:US517084

    申请日:1990-05-01

    CPC分类号: C08L51/04 C08L69/00

    摘要: Thermoplastic molding composition comprisingA. 5 to 99% by weight (based on A+B) of a polycarbonate based on substituted dihydroxydiphenyl cycloalkanesB. 1 to 95% by weight (based on A+B) of a graft polymer prepared by a special process of5 to 90 parts by weight of a mixture ofB.1.1. 50 to 95 parts by weight styrene, .alpha.-methyl styrene, C.sub.1-4 alkyl- or halogen-nucleus-substituted styrenes, C.sub.1-8 alkyl methacrylates, C.sub.1-8 alkyl acrylates or mixtures thereof andB.1.2. 5 to 50 parts by weight acrylonitrile, methacrylonitrile, C.sub.1-8 alkyl methacrylates, C.sub.1-8 alkyl acrylates, maleic anhydride, C.sub.1-4 alkyl-N-maleic imides, phenyl-N-maleic imides or mixtures thereof onB.2. 10 to 95 parts by weight of a diene rubber having an average particle diameter d50 of from 0.09 to 1 .mu.m and a gel content of more than 50% by weight and optionally at least one other thermoplastic resin which replaces up to 75% by weight of the polycarbonate A.

    摘要翻译: 含有5至99重量%(基于A + B)的基于取代的二羟基二苯基环烷烃的聚碳酸酯的热塑性模制组合物.B.1至95重量%(基于A + B)由特殊的 方法为5〜90重量份B.1.1的混合物。 50至95重量份苯乙烯,α-甲基苯乙烯,C 1-4烷基或卤素 - 核取代的苯乙烯,甲基丙烯酸C 1-8烷基酯,丙烯酸C 1-8烷基酯或其混合物和B.1.2。 5至50重量份丙烯腈,甲基丙烯腈,甲基丙烯酸C 1-8烷基酯,丙烯酸C 1-8烷基酯,马来酸酐,C 1-4烷基-N-马来酰亚胺,苯基-N-马来酰亚胺或其在B.2上的混合物。 10至95重量份平均粒径d 50为0.09至1微米且凝胶含量大于50重量%的二烯橡胶和任选的至少一种其它热塑性树脂,其代替75重量% 的聚碳酸酯A.

    Thermoplastic silicon rubber graft polymers (II)
    80.
    发明授权
    Thermoplastic silicon rubber graft polymers (II) 失效
    热塑性硅橡胶接枝聚合物(II)

    公开(公告)号:US4885209A

    公开(公告)日:1989-12-05

    申请号:US204022

    申请日:1988-06-08

    IPC分类号: C08F283/12 C08F285/00

    摘要: The invention relates to thermoplastic particulate graft polymers of a rubber (AB), consisting of a core (A) of rubber-like polymer of olefinically unsaturated monomers having softening temperatures (glass temperatures) below 0.degree. C. and a shell (B) of organopolysiloxane, and a polymer (C) of at least one ethylenically unsaturated monomer grafted into the rubber (AB) and to their use, optionally in admixture with brittle thermoplastic vinyl resins, as thermoplastic molding compositions.

    摘要翻译: 本发明涉及橡胶(AB)的热塑性颗粒接枝聚合物,其由软化温度(玻璃温度)低于0℃的烯属不饱和单体的橡胶状聚合物的芯(A)和壳(B)组成 有机聚硅氧烷和至少一种接枝到橡胶(AB)中的烯键式不饱和单体的聚合物(C),以及它们的用途,任选地与脆性热塑性乙烯基树脂混合,作为热塑性模塑组合物。