Thermoplastic molding compositions of a polysiloxane block
copolycarbonate and a polycarbonate based on certain
dihydroxydiphenylcycloalkanes
    4.
    发明授权
    Thermoplastic molding compositions of a polysiloxane block copolycarbonate and a polycarbonate based on certain dihydroxydiphenylcycloalkanes 失效
    基于某些二羟基二苯基甲烷的聚硅氧烷嵌段共聚碳酸酯和聚碳酸酯的热塑性成型组合物

    公开(公告)号:US5100960A

    公开(公告)日:1992-03-31

    申请号:US493036

    申请日:1990-03-12

    IPC分类号: C08L69/00 C08L83/10

    CPC分类号: C08L69/00 C08L83/10

    摘要: The invention relates to a thermoplastic molding composition comprising(A) from 10 to 98 parts by weight of a polydiorganosiloxane-polycarbonate block copolymer having a weight average molecular weight of from 10,000 to 200,000 and containing from 75 to 97.5 wt. % of aromatic carbonate structural units and from 25 to 2.5 wt. % of polydiorganosiloxane structural units;(B) from 2 to 90 parts by weight of a thermoplastic, aromatic polycarbonate having a weight average molecular weight of at least 10,000, andcontaining bifunctional carbonate structural units corresponding to ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.12 aralkyl;m represents an integer of from 4 to 7,R.sup.3 and R.sup.4, which may be selected individually for each X, independently represent hydrogen or C.sub.1 -C.sub.6 alkyl; andx represents carbon,with the proviso that, on at least one atom X, R.sup.3 and R.sup.4 both represent alkyl; and(C) from 0.5 to 30 parts by weight of a rubber having a glass transition temperature of less than -20.degree. C.The composition of the invention is useful for the preparation of injection molded articles having an excellent surface and a particularly good toughness at low temperatures.

    摘要翻译: 本发明涉及一种热塑性模塑组合物,其包含(A)10至98重量份的重均分子量为10,000至200,000的聚二有机硅氧烷 - 聚碳酸酯嵌段共聚物,并且含有75至97.5重量% %的芳族碳酸酯结构单元和25〜2.5wt。 %的聚二有机硅氧烷结构单元; (B)2至90重量份的重均分子量为至少10,000的热塑性芳族聚碳酸酯,并且含有对应于(Ia)的双官能碳酸酯结构单元,其中R 1和R 2独立地表示氢,卤素 C 1 -C 8烷基,C 5 -C 6环烷基,C 6 -C 10芳基或C 7 -C 12芳烷基; m表示4至7的整数,可以为每个X单独选择的R 3和R 4独立地表示氢或C 1 -C 6烷基; 并且x表示碳,条件是在至少一个原子X,R 3和R 4都表示烷基; 和(C)0.5〜30重量份玻璃化转变温度低于-20℃的橡胶。本发明的组合物可用于制备具有优异表面和特别良好韧性的注塑制品 在低温下。

    Polycarbonates with alkylphenyl end groups, their preparation and their
use
    8.
    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
    9.
    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
    10.
    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。