Polycarbonates with end groups containing bonds which can be crosslinked
by UV light
    1.
    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

    CPC classification number: C08G63/64 C08G64/14 C08K5/07 C08K5/42

    Abstract: 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.

    Abstract translation: 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
    2.
    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 classification number: C08L69/00 Y10S260/24

    Abstract: 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.

    Abstract translation: 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。

    Process for the preparation of modified polycarbonate molding
compositions
    8.
    发明授权
    Process for the preparation of modified polycarbonate molding compositions 失效
    制备改性聚碳酸酯模塑组合物的方法

    公开(公告)号:US4367186A

    公开(公告)日:1983-01-04

    申请号:US319532

    申请日:1981-11-09

    CPC classification number: C08J3/28 C08G63/64 C08G64/40 C08L69/00 C08J2369/00

    Abstract: This development is concerned with an improved process of preparing polycarbonate molding compositions and molded articles having superior hydrolysis resistance, stress crack resistance and flame retardancy, by thermoplastically processing a partially crosslinked aromatic polycarbonate. A crosslinkable aromatic thermoplastic polycarbonate is subject to irradiation to cause crosslinking on its surface such that between about 5 and 50 wt. % of the polymer is crosslinked and it is then thermoplastically processed. This partially crosslinked polycarbonate may be blended with uncrosslinked thermoplastic aromatic polycarbonate or known flame retardant agents. This development is also concerned with the compositions or articles so produced.

    Abstract translation: 本发明涉及通过热塑性加工部分交联的芳族聚碳酸酯制备具有优异的耐水解性,抗应力开裂性和阻燃性的聚碳酸酯模塑组合物和模塑制品的改进方法。 可交联的芳族热塑性聚碳酸酯经受照射使其表面发生交联,使得约5至50重量% 聚合物的%交联,然后进行热塑性加工。 该部分交联的聚碳酸酯可以与未交联的热塑性芳族聚碳酸酯或已知的阻燃剂共混。 这种发展也涉及如此生产的组合物或制品。

    Polycarbonates with end groups containing double bonds which can be
crosslinked by UV light
    10.
    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

    CPC classification number: C08J3/28 C08G64/045 C08J2369/00

    Abstract: 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.

    Abstract translation: 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。

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