Preparation of benzoate ester terminated polycarbonate with aroyl halide
    12.
    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

    CPC classification number: C08G64/14

    Abstract: 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.

    Abstract translation: 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。

    Rubbery polycarbonates
    13.
    发明授权
    Rubbery polycarbonates 失效
    橡胶聚碳酸酯

    公开(公告)号:US4446285A

    公开(公告)日:1984-05-01

    申请号:US447030

    申请日:1982-12-06

    CPC classification number: C08G64/06

    Abstract: Novel polycarbonates are provided which exhibit rubbery and elastomeric properties which are the polymerized reaction products of:(i) a carbonate precursor; and(ii) at least one dihydric phenol represented by the general formula ##STR1## wherein R is selected from straight chain alkyl radicals containing from 8 to about 30 carbon atoms;each R.sup.1 is independently selected from halogen monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;each R.sup.2 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; andn and n' are independently selected from whole numbers having a value of from 0 to 4 inclusive.

    Abstract translation: 提供新的聚碳酸酯,其表现出橡胶和弹性体性质,其是以下的聚合反应产物:(i)碳酸酯前体; 和(ii)由通式“IMAGE”表示的至少一种二元酚,其中R选自含有8至约30个碳原子的直链烷基; 每个R 1独立地选自卤素一价烃和一价烃氧基; 每个R 2独立地选自卤素,一价烃和一价烃氧基; n和n'独立地选自0〜4的整数。

    Dihydric phenols
    15.
    发明授权
    Dihydric phenols 失效
    二元酚

    公开(公告)号:US4535191A

    公开(公告)日:1985-08-13

    申请号:US582946

    申请日:1984-02-23

    CPC classification number: C08G64/06 C07C39/16

    Abstract: Novel polycarbonates are provided which exhibit rubbery and elastomeric properties which are the polymerized reaction products of:(i) a carbonate precursor; and(ii) at least one dihydric phenol represented by the general formula ##STR1## wherein R is selected from straight chain alkyl radicals containing from 8 to about 30 carbon atoms;each R.sup.1 is independently selected from halogen monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;each R.sup.2 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; andn and n' are independently selected from whole numbers having a value of from 0 to 4 inclusive.

    Abstract translation: 提供新的聚碳酸酯,其表现出橡胶和弹性体性质,其是以下的聚合反应产物:(i)碳酸酯前体; 和(ii)由通式“IMAGE”表示的至少一种二元酚,其中R选自含有8至约30个碳原子的直链烷基; 每个R 1独立地选自卤素一价烃和一价烃氧基; 每个R 2独立地选自卤素,一价烃和一价烃氧基; n和n'独立地选自0〜4的整数。

    Fluorinated diphenols and method for their preparation
    16.
    发明授权
    Fluorinated diphenols and method for their preparation 失效
    氟化二酚及其制备方法

    公开(公告)号:US4467121A

    公开(公告)日:1984-08-21

    申请号:US402165

    申请日:1982-07-26

    CPC classification number: C07C37/115 C07C37/16 C07C37/20 C07C39/367

    Abstract: Fluorinated bisphenols having a fluorinated alkyl group and a hydrogen atom upon the methylene carbon atom are prepared at atmospheric pressure or at low pressures from a phenol reactant and a fluorinated aldehyde compound in the presence of gaseous hydrogen chloride or gaseous hydrogen bromide catalyst. The fluorinated bisphenols having the fluorinated alkyl group and a hydrogen atom upon the methylene carbon atom are produced in excellent yields and are used for making flame-retardant polycarbonates and polyester-carbonate copolymers.

    Abstract translation: 在气态氯化氢或溴化氢气体气体催化剂存在下,在大气压或低压下由苯酚反应物和氟化醛化合物制备具有氟代烷基和亚甲基碳原子上的氢原子的氟化双酚。 具有氟代烷基和亚甲基碳原子上的氢原子的氟化双酚以优异的收率生产,并用于制备阻燃聚碳酸酯和聚酯 - 碳酸酯共聚物。

    Rubbery polyarylates
    18.
    发明授权
    Rubbery polyarylates 失效
    橡胶聚芳酯

    公开(公告)号:US4454308A

    公开(公告)日:1984-06-12

    申请号:US447092

    申请日:1982-12-06

    CPC classification number: C08G63/19

    Abstract: There are provided novel polyarylates exhibiting rubbery or elastomeric properties which are derived from (i) at least one aromatic dicarboxylic acid or a reactive derivative thereof, and (ii) at least one dihydricphenol which contains as the briding group joining the aromatic residues a long straight chain 1,1-alkylidene radical.

    Abstract translation: 提供了表现出橡胶状或弹性体性质的新型聚芳酯,其衍生自(i)至少一种芳族二羧酸或其活性衍生物,和(ii)至少一种二元酚,其含有连接芳族残基的长直链 链1,1-亚烷基。

Patent Agency Ranking