Polycarbonate molding compositions with improved resilience properties
    2.
    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。

    Polycarbonates with end groups containing double bonds which can be
crosslinked by UV light
    3.
    发明授权
    Polycarbonates with end groups containing double bonds which can be crosslinked by UV light 失效
    具有端基的聚碳酸酯含有双键,其可以通过UV光交联

    公开(公告)号:US4221645A

    公开(公告)日:1980-09-09

    申请号:US50899

    申请日:1979-06-21

    摘要: High molecular weight aromatic polycarbonates having molecular weights M.sub.w (weight average) of between about 10,000 and 200,000, which are based on diphenols and monofunctional chain stoppers, which correspond to the general formula ##STR1## in which Z denotes the radical of a diphenol,n denotes an integer from 20 to 400,E denotes ##STR2## m is 0 or 1 and R denotes a hydrogen atom or a C.sub.1 to C.sub.3 alkyl group, and in which between about 0.5 and 5 mol % of Z are radicals of aromatic dihydroxyketones. These polycarbonates share mechanical and thermal properties with known polycarbonates but in addition are suitable for crosslinking, for example in the presence of photoinitiators and optionally photo-reducing agents and under irradiation with UV light. When crosslinked they are resistant to organic solvents and insensitive to stress-cracking, and have particularly good flame-repellent properties when additionally incorporating flameproofing agents.

    摘要翻译: 分子量Mw(重均分子量)在10,000和200,000之间的高分子量芳族聚碳酸酯,它们基于二酚和单官能链终止剂,其对应于通式(I),其中Z表示 二苯酚,n表示20〜400的整数,E表示m为0或1,R表示氢原子或C1〜C3烷基,其中约0.5〜5摩尔%的Z为 芳族二羟基酮。 这些聚碳酸酯与已知的聚碳酸酯共享机械和热性能,但另外适用于交联,例如在光引发剂和任选的光还原剂的存在下,并且在用UV光照射下。 当交联时,它们对有机溶剂具有耐受性并且对应力开裂不敏感,并且当额外加入防火剂时具有特别好的阻燃性能。

    Polycarbonates with end groups containing bonds which can be crosslinked
by UV light
    6.
    发明授权
    Polycarbonates with end groups containing bonds which can be crosslinked by UV light 失效
    具有端基的聚碳酸酯含有可以通过UV光交联的键

    公开(公告)号:US4230548A

    公开(公告)日:1980-10-28

    申请号:US34839

    申请日:1979-04-30

    摘要: The present invention relates to high-molecular weight aromatic polycarbonates, based on diphenols and monofunctional chain stoppers, corresponding to the formula (I) ##STR1## in which Z denotes the radical of a diphenol,n denotes an integer from about 20 to 400,E denotes ##STR2## wherein m denotes 0 or 1 andR denotes H or C.sub.1 -C.sub.3 -alkyl.The present invention also relates to a process for the preparation of the polycarbonates of the formula (I) comprising reacting diphenols of the formula (II)HO--Z--OH (II)whereinZ is a divalent aromatic radical, and/or their chlorocarbonic acid esters in accordance with the processes which are known for the preparation of polycarbonates, in a homogeneous or heterogeneous phase system, with compounds of the formula (III) ##STR3## wherein m denotes 0 or 1 andR denotes H or C.sub.1 -C.sub.3 -alkyl.The present invention also relates to a process for cross-linking the polycarbonates of the formula (I) with UV light, after adding a photoinitiator and, optionally, flameproofing and photo-reducing agents. Finally, the present invention relates to the cross-linked polycarbonates obtained via this process.

    摘要翻译: 本发明涉及对应于其中Z表示二酚的基团的式(I)的式(I)的二酚和单官能链终止剂的高分子量芳族聚碳酸酯,n表示约20的整数 至400,E表示,其中m表示0或1,R表示H或C 1 -C 3 - 烷基。 本发明还涉及制备式(I)的聚碳酸酯的方法,包括使式(II)的二酚HO-Z-OH(II)其中Z是二价芳族基团和/或它们的氯碳 (III)化合物,其中m表示0或1,R表示H或C1(III)的化合物,其在均相或非均相系统中制备聚碳酸酯的方法是酸酯, -C 3-烷基。 本发明还涉及在加入光引发剂和任选的阻燃和光还原剂之后使式(I)的聚碳酸酯与UV光交联的方法。 最后,本发明涉及通过该方法获得的交联聚碳酸酯。

    Polycarbonate molding materials
    7.
    发明授权
    Polycarbonate molding materials 失效
    聚碳酸酯成型材料

    公开(公告)号:US4046836A

    公开(公告)日:1977-09-06

    申请号:US648992

    申请日:1976-01-14

    CPC分类号: C08L69/00 Y10S260/24

    摘要: This invention relates to thermoplastic polycarbonate molding materials having improved flame resistance and hydrolysis resistance. These materials comprise intimate blends of aromatic high molecular weight polycarbonates and about 0.5 to 50 wt. % of polyphenylene sulphides. This invention also relates to a process for improving the flame resistance and hydrolysis resistance of aromatic polycarbonates by intimately blending them with about 0.5 to 50 wt. % polyphenylene sulphide.

    摘要翻译: 本发明涉及具有改善的阻燃性和耐水解性的热塑性聚碳酸酯成型材料。 这些材料包括芳族高分子量聚碳酸酯的紧密共混物和约0.5至50wt。 %的聚苯硫醚。 本发明还涉及一种通过将它们与约0.5至50重量%的密切混合来改进芳族聚碳酸酯的耐火性和耐水解性的方法。 %聚苯硫醚。