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Linear copolycondensation product comprising recurring aromatic carbonate and carboxylic acid ester units in the polymer chain, and article formed thereof

机译:在聚合物链中包含重复的芳族碳酸酯和羧酸酯单元的线性共缩聚产物及其形成的制品

摘要

Copolymers, soluble in methylene chloride and dioxane, and suitable for the manufacture of lacquers, moulded articles or photographic film bases (see Group XX) are made by reacting (a) a low molecular weight polyester of a dicarboxylic acid and a glycol containing 2-10 carbon atoms with (b) a polycarbonate of a di-(monohydroxyaryl) alkane or the ingredients necessary to produce such a polycarbonate. In examples, a low molecular weight polyethylene terephthalate, polytrimethylene terephthalate, polyethylene isophthalate, polyethylene adipate or polytrimethylene adipate was reacted with diphenyl carbonate and bis-phenol A or a polycarbonate obtained therefrom using as a catalyst either zinc oxide or a mixture of zinc oxide and lead oxide. Other di-(monohydroxaryl) alkanes mentioned are the 4:41-dihydroxy diphenyl derivatives of methane, ethane and butane. Other dicarboxylic acids specified are sebacic acid and mixtures of isophthalic and terephthalic acids. According to the Provisional Specification (1) the copolymers may be made by reacting simultaneously ingredients necessary for the production of the polyester and the polycarbonate, e.g. by reacting a mixture of dimethyl terephthalate, bis-phenol A, the acetate of bis-phenol A and diphenyl carbonate or by reacting a mixture of dimethyl terephthalate, cyclic ethylene carbonate, bis-phenol A and diphenyl carbonate and (2) the alkane group in the di-(monohydroxy aryl) alkanes may be replaced by a sulphone, ether, carbonyl, sulphide or sulphoxide group. Specifications 772,627 and 870,096 are referred to.
机译:可溶于二氯甲烷和二恶烷,适用于制造清漆,模塑制品或照相底片(请参见第XX组)的共聚物是通过以下方法制得的:(a)低分子量的二羧酸聚酯与含有2- (b)二(单羟基芳基)烷烃的聚碳酸酯或生产这种聚碳酸酯所必需的成分,含10个碳原子。在实施例中,使低分子量聚对苯二甲酸乙二醇酯,聚对苯二甲酸丙二醇酯,聚间苯二甲酸乙二醇酯,聚己二酸酯或聚己二酸己二醇酯与碳酸二苯酯和双酚A或由此获得的聚碳酸酯反应,使用氧化锌或氧化锌的混合物作为催化剂。氧化铅。提及的其他二-(单氢氧芳基)烷烃是甲烷,乙烷和丁烷的4:41-二羟基二苯基衍生物。指定的其他二羧酸是癸二酸以及间苯二甲酸和对苯二甲酸的混合物。根据临时说明书(1),可以通过使生产聚酯和聚碳酸酯所需的成分同时反应来制备共聚物,例如聚酯和聚碳酸酯。通过使对苯二甲酸二甲酯,双酚A,双酚A的乙酸酯与碳酸二苯酯的混合物反应,或使对苯二甲酸二甲酯,环状碳酸亚乙酯,双酚A和碳酸二苯酯的混合物与(2)烷烃基反应在二(单羟基芳基)烷烃中的芳烃可以被砜,醚,羰基,硫化物或亚砜基取代。参考规格772,627和870,096。

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