Polycarbonates with alkylphenyl end groups, their preparation and their
use
    5.
    发明授权
    Polycarbonates with alkylphenyl end groups, their preparation and their use 失效
    具有烷基苯基端基的聚碳酸酯,其制备及其用途

    公开(公告)号:US4269964A

    公开(公告)日:1981-05-26

    申请号:US75439

    申请日:1979-09-14

    CPC分类号: C08G64/14

    摘要: This development is concerned with aromatic thermoplastic polycarbonates with special chain terminators which give the polymers enhanced hydrolysis resistance and impact toughness. These chain terminators are alkyl substituted monohydroxy phenyls in which each phenyl is substituted by one alkyl group having 8 or 9 carbon atoms and about 47 to 89% of its hydrogen atoms trisubstituted on carbon atoms with up to about 20% of the substituents in the ortho position and the balance at the para position. This development is also concerned with a process for synthesizing such polymers by using such chain terminators as reactants in generically known synthesis methods for polycarbonates.

    摘要翻译: 这种发展涉及具有特殊链终止剂的芳族热塑性聚碳酸酯,其赋予聚合物增强的耐水解性和冲击韧性。 这些链终止剂是烷基取代的单羟基苯基,其中每个苯基被一个具有8或9个碳原子的烷基取代,并且其在碳原子上三取代的氢原子的约47-89%,在邻位上具有高达约20%的取代基。 位置和对位的余额。 这种发展也涉及通过使用这种链终止剂作为一般已知的聚碳酸酯合成方法中的反应物合成这种聚合物的方法。

    Polycarbonate molding compositions with improved resilience properties
    6.
    发明授权
    Polycarbonate molding compositions with improved resilience properties 失效
    聚碳酸酯模塑组合物具有改善的弹性

    公开(公告)号:US4252922A

    公开(公告)日:1981-02-24

    申请号:US16457

    申请日:1979-02-28

    摘要: Thermoplastic molding compositions are provided comprising from about 80 to 98% by weight of a polycarbonate obtained from diphenols, having a mean weight-average molecular weight M.sub.w from about 10,000 to 200,000 and from about 20 to 2% by weight of a polyester-carbonate and/or polyether-carbonate with mean weight-average molecular weights M.sub.w of from about 50,000 to 300,000, which contain between about 50 and 70% by weight of soft polyester segments or soft polyether segments with mean number-average molecular weights M.sub.n of from about 10,000 to 20,000. The instant invention also relates to a process for the production of said thermoplastic molding compositions. These thermoplastic molding compositions show markedly improved resilience properties compared with known polycarbonates and can be employed as films and shaped articles in all cases where, on the one hand, high notched impact strength at low temperatures, high toughness properties at relatively high wall thicknesses, and transparency are required.

    摘要翻译: 提供了热塑性模塑组合物,其包含约80至98重量%的由二酚获得的聚碳酸酯,其平均重均分子量Mw为约10,000至200,000和约20至2重量%的聚酯碳酸酯, /或聚醚 - 碳酸酯,其平均重均分子量Mw为约50,000至300,000,其含有约50至70重量%的平均数均分子量Mn为约10,000的软聚酯链段或软聚醚链段 至20,000。 本发明还涉及一种生产所述热塑性模塑组合物的方法。 这些热塑性成型组合物与已知的聚碳酸酯相比显示出显着改善的回弹性能,并且可以在所有情况下用作膜和成型制品,一方面,在低温下的高缺口冲击强度,较高的壁厚度下的高韧性,以及 需要透明度。

    Thermoplastic moulding composition
    7.
    发明授权
    Thermoplastic moulding composition 失效
    热塑性成型组合物

    公开(公告)号:US4204047A

    公开(公告)日:1980-05-20

    申请号:US886812

    申请日:1978-03-15

    CPC分类号: C08L69/00

    摘要: Thermoplastic moulding compositions of1. 80 to 20 parts by weight of a thermoplastic polycarbonate based on bis-(hydroxyaryl)-alkanes,2. 20 to 80 parts by weight of a graft polymer of 20 to 90% by weight of a mixture of 95 to 5 parts by weight of styrene and/or methyl methacrylate, 50 to 5 parts by weight of acrylonitrile or methacrylonitrile and 50 to 0 parts by weight of a N-substituted maleic imide the total being 100 parts by weight on 10 to 80% by weight of a rubber,3. 0 to 75 parts by weight of a copolymer of 95 to 50% by weight of styrene and/or methyl methacrylate and 50 to 5% by weight of acrylonitrile or methacrylonitrile,4. 2 to 75 parts by weight of a copolymer of 95 to 50 parts by weight of styrene and/or methyl methacrylate, 40 to 5 parts by weight of acrylonitrile or methacrylonitrile, 2 to 40 parts by weight of a N-substituted maleic imide.

    摘要翻译: 基于双((羟基芳基) - 烷烃的热塑性聚碳酸酯为80〜20重量份的热塑性成型组合物,20〜80重量份20〜90重量%的95重量份的混合物 至5重量份的苯乙烯和/或甲基丙烯酸甲酯,50至5重量份的丙烯腈或甲基丙烯腈和50至0重量份的N-取代的马来酰亚胺,其总计为100重量份,10至80重量% 橡胶重量为0.03〜75重量份,95〜50重量%的苯乙烯和/或甲基丙烯酸甲酯和50〜5重量%的丙烯腈或甲基丙烯腈的共聚物,4.2〜75重量份 的95至50重量份的苯乙烯和/或甲基丙烯酸甲酯,40至5重量份的丙烯腈或甲基丙烯腈,2至40重量份的N-取代的马来酰亚胺的共聚物。

    Modified polycarbonates and a process for their preparation
    8.
    发明授权
    Modified polycarbonates and a process for their preparation 失效
    改性聚碳酸酯及其制备方法

    公开(公告)号:US4199540A

    公开(公告)日:1980-04-22

    申请号:US945150

    申请日:1978-09-22

    摘要: The present invention relates to a process for the modification of thermoplastic aromatic polycarbonates containing aromatically bonded halogen, primary alkyl, secondary alkyl and/or alkenyl substituents, characterized in that these polycarbonates are irradiated with UV light, after adding between about 1 and 5% by weight, preferably between about 1 and 3% by weight, relative to the weight of polycarbonate, of photoinitiators and optionally between about 0.05 and 5% by weight, preferably between about 0.1 and 2% by weight, relative to the weight of polycarbonate, of flame-proofing agents. The present invention also relates to the modified polycarbonates obtainable by the process according to the invention.

    摘要翻译: 本发明涉及一种用于改性含有芳香键合的卤素,伯烷基,仲烷基和/或烯基取代基的热塑性芳族聚碳酸酯的方法,其特征在于这些聚碳酸酯用紫外线照射,加入约1至5% 重量,优选约1至3重量%,相对于聚碳酸酯的重量为光引发剂,并且相对于聚碳酸酯的重量,优选约0.05至5重量%,优选约0.1至2重量% 防火剂。 本发明还涉及通过本发明的方法获得的改性聚碳酸酯。

    Aromatic thermoplastic polyphosphonatocarbonate
    10.
    发明授权
    Aromatic thermoplastic polyphosphonatocarbonate 失效
    芳香族热塑性聚磷酸酯

    公开(公告)号:US4762905A

    公开(公告)日:1988-08-09

    申请号:US735635

    申请日:1985-05-20

    CPC分类号: C08G79/04 C08G64/083

    摘要: Thermoplastic polyphosphonatocarbonate prepared by polycondensing at least one aromatic dihydroxy compound with a diaryl carbonate and a phosphonic acid diaryl ester in the presence of a basic polycondensation catalyst at a temperature of from 80.degree. to 340.degree. C. and under a pressure of 600 to 0.1 mm Hg in an inert gaseous atmosphere, the molar ratio of diaryl carbonate to phosphonic diaryl ester being from 5:95 to 95:5 and the molar ratio of aromatic dihydroxy compound to the sum of diaryl carbonate and phosphonic acid diaryl ester being from 0.91:1 to 0.99:1, and following polycondensation, neutralizing said basic catalyst.

    摘要翻译: 在碱性缩聚催化剂存在下,在80〜340℃的温度和600〜0.1mm的压力下,使至少一种芳族二羟基化合物与碳酸二芳基酯和膦酸二芳基酯缩聚制备的热塑性聚膦酸酯 Hg在惰性气体气氛中,碳酸二芳酯与膦酸二芳基酯的摩尔比为5:95至95:5,芳族二羟基化合物与碳酸二芳酯和膦酸二芳基酯的摩尔比为0.91:1 至0.99:1,并进行缩聚后中和所述碱性催化剂。