Polycarbonate from nonaromatic cyclic anhydride having improved optical
properties
    51.
    发明授权
    Polycarbonate from nonaromatic cyclic anhydride having improved optical properties 失效
    来自具有改善的光学性质的非芳族环酸酐的聚碳酸酯

    公开(公告)号:US4587326A

    公开(公告)日:1986-05-06

    申请号:US700097

    申请日:1985-02-11

    CPC分类号: C08G63/64

    摘要: Carbonate polymer comprised of the reaction products of:(i) at least one dihydric phenol;(ii) a carbonate precursor; and(iii) an optical property improving amount of at least one cyclic anhydride represented by the general formula ##STR1## wherein: X represents a divalent nonaromatic cyclic hydrocarbon radical;R is independently selected from monovalent hydrocarbon radicals; andn is a positive integer having a value of from 0 up to the number of replaceable hydrogen atoms present on X.

    摘要翻译: 由以下反应产物组成的碳酸酯聚合物:(i)至少一种二元酚; (ii)碳酸酯前体; 和(iii)由通式“IMAGE”表示的至少一种环状酸酐的光学性质改进量,其中:X表示二价非芳族环状烃基; R独立地选自一价烃基; 并且n是具有0至0之间存在的可替代氢原子数的正整数。

    Polycarbonate resin impact modified with polyolefins and containing
paraffin derivatives
    53.
    发明授权
    Polycarbonate resin impact modified with polyolefins and containing paraffin derivatives 失效
    聚碳酸酯树脂用聚烯烃进行冲击改性并含有链烷烃衍生物

    公开(公告)号:US4521562A

    公开(公告)日:1985-06-04

    申请号:US397718

    申请日:1982-07-13

    IPC分类号: C08K5/103 C08L69/00 C08K5/10

    摘要: A polycarbonate composition having improved melt flow and improved impact strength after aging at elevated temperatures, comprising polycarbonate resin with polyolefins and a paraffin derivative. A preferred composition comprises, in admixture, a high molecular weight aromatic carbonate polymer and a minor amount of a polyolefin and pentaerythritol tetrastearate.

    摘要翻译: 一种聚碳酸酯组合物,其在升高的温度下老化后具有改善的熔体流动性和改善的冲击强度,包括聚碳酸酯树脂与聚烯烃和链烷烃衍生物。 优选的组合物包含高分子量芳族碳酸酯聚合物和少量的聚烯烃和季戊四醇四硬脂酸酯。

    Preparation of benzoate ester terminated polycarbonate with aroyl halide
    54.
    发明授权
    Preparation of benzoate ester terminated polycarbonate with aroyl halide 失效
    用芳酰卤制备苯甲酸酯封端的聚碳酸酯

    公开(公告)号:US4448953A

    公开(公告)日:1984-05-15

    申请号:US409304

    申请日:1982-08-18

    IPC分类号: C08G64/14 C08G63/62

    CPC分类号: C08G64/14

    摘要: A process for preparing an aromatic polycarbonate of controlled molecular weight which comprises interfacially reacting in water and an organic solvent, a dihydric phenol, a carbonate precursor and a molecular weight controlling effective amount of a compound of the formula ##STR1## wherein n is an integer having a value of from 0 to 5 inclusive; Y is a halide or hydroxyl; and each R is independently selected from the group consisting of alkyl radicals, aryl radicals, alkaryl radicals, aralkyl radicals, alkoxy radicals, aryloxy radicals, halides, ##STR2## radicals wherein R.sup.2 is selected from hydrogen, alkyl radicals or acyl radicals or R.sup.3 is an acyl radical or --C.tbd.N. The polymers are useful in injection molded articles.

    摘要翻译: 一种制备控制分子量的芳族聚碳酸酯的方法,其包括在水和有机溶剂中的界面反应,二元酚,碳酸酯前体和分子量控制有效量的下式化合物其中n是整数 值为0到5(含); Y是卤素或羟基; 并且每个R独立地选自烷基,芳基,烷芳基,芳烷基,烷氧基,芳氧基,卤化物,其中R 2选自氢,烷基或酰基或R 3是 酰基或-C 3BOND N.聚合物可用于注塑制品。

    Process for the manufacture of polycarbonate-oligomers without solvent
    57.
    发明授权
    Process for the manufacture of polycarbonate-oligomers without solvent 失效
    无溶剂制造聚碳酸酯低聚物的方法

    公开(公告)号:US5461121A

    公开(公告)日:1995-10-24

    申请号:US278358

    申请日:1994-07-21

    CPC分类号: C08G64/186 C08G77/448

    摘要: Polycarbonate oligomers having hydroxy end groups are produced by a melt reaction with bisphenol-A and a basic catalyst. The oligomers may then be reacted with chloro end-group siloxanes in the presence of a solvent and an acid acceptor to yield polycarbonate-polysiloxane block co-polymers. The melt reaction occurs at elevated temperature without the direct use of phosgene gas.

    摘要翻译: 具有羟基端基的聚碳酸酯低聚物通过与双酚A和碱性催化剂的熔融反应而制备。 然后可以在溶剂和酸受体的存在下使低聚物与氯端基硅氧烷反应,得到聚碳酸酯 - 聚硅氧烷嵌段共聚物。 熔融反应在升高的温度下进行,而不直接使用光气。

    Cross linked polycarbonate resin by thermolytic degradation
    58.
    发明授权
    Cross linked polycarbonate resin by thermolytic degradation 失效
    交联聚碳酸酯树脂通过热分解降解

    公开(公告)号:US4973665A

    公开(公告)日:1990-11-27

    申请号:US434393

    申请日:1989-11-13

    IPC分类号: C08G64/14

    CPC分类号: C08G64/14

    摘要: A polycarbonate resin, containing in the polymer chain at least one divalent moiety of the formula: ##STR1## wherein E is selected from the group consisting of alkylene containing from 1 to 15 carbon atoms, inclusive, and halogen-substituted alkylene containing from 1 to 15 carbon atoms, inclusive, a is an integer of 0 or 1 and R' is hydrogen or hydrocarbyl or halogen substituted hydrocarbyl amenable to beta elimination upon thermal degradation.

    摘要翻译: 在聚合物链中含有下式的至少一个二价部分:(I)的聚碳酸酯树脂,其中E选自含有1至15个碳原子的亚烷基,和含有卤素取代的亚烷基 1至15个碳原子,包括端值,a为0或1的整数,R'为氢或烃基或卤素取代的烃基,可在热降解时进行β消除。

    Hydroxy terminated polycarbonate from hydroxy benzene alkanol
    59.
    发明授权
    Hydroxy terminated polycarbonate from hydroxy benzene alkanol 失效
    羟基封端的聚碳酸酯由羟基苯烷醇

    公开(公告)号:US4933424A

    公开(公告)日:1990-06-12

    申请号:US292136

    申请日:1988-12-30

    CPC分类号: C08G64/14

    摘要: A method for the preparation of aromatic polycarbonate resins bearing terminal hydroxy groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula: ##STR1## wherein R and R' each independently represent hydrogen and hydrocarbyl of 1 to about 12 carbons; or R and R' when taken together with the carbon atom between them represent cycloalkyl of 3 to 8 carbon atoms, inclusive. The novel product resins are useful as intermediates in the preparation of copolymers with, for example, polyesteramides and as cross-linking agents, to cross-link polycarbonates and like resins.