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    • 8. 发明授权
    • Polyester-polycarbonate compositions
    • 聚酯 - 聚碳酸酯组合物
    • US07226985B2
    • 2007-06-05
    • US11179428
    • 2005-07-12
    • Wesley Raymond HaleDavid Gayle Salyer
    • Wesley Raymond HaleDavid Gayle Salyer
    • C08G63/00
    • C08L67/02C08K5/5205C08L69/00C08L2666/18
    • Disclosed are polymer compositions comprising: (A) a first component comprising about 1 to 99 percent by weight at least one polyester (A) comprising: (1) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixtures thereof, and (2) diol residues selected from the group consisting of 1,4 -cyclohexanedimethanol residues, ethylene glycol residues and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is less than 0.50; (B) a second component comprising about 99 to 1 percent by weight of a miscible blend of: (1) at least one polycarbonate (B) of bisphenol A (2) at least one polyester (C) comprising (a) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixture thereof, and (b) diol residues selected from the group consisting of 1,4-cyclohexanedimethanol residues, ethylene glycol residues, and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is 0.50 or greater; and, wherein the total weight percent for the first component and for the second component is equal to 100 weight percent; and wherein the total weight percent for the second component of polycarbonate (B) and polyester (C) is equal to 100 weight percent; and wherein the first component and second component have refractive indices which differ in absolute value by 0.008 or less; and wherein the total mole percent of the diacid residues of each of polyesters (A) and polyester (C) individually is equal to 100 mole percent; and wherein the total mole percent of the diol residues of each of polyesters (A) and polyester (C) individually is equal to 100 mole percent.
    • 公开的聚合物组合物包含:(A)包含约1-99重量%的至少一种聚酯(A)的第一组分,其包含:(1)选自对苯二甲酸残基,间苯二甲酸残基及其混合物的二酸残基 ,和(2)选自1,4-环己烷二甲醇残基,乙二醇残基及其混合物的二醇残基; 其中1,4-环己烷二甲醇与乙二醇的摩尔比小于0.50; (B)第二组分,其包含约99至1重量%的混合混合物:(1)至少一种双酚A的聚碳酸酯(B)(2)至少一种聚酯(C),其包含(a)选择的二酸残基 由对苯二甲酸残基,间苯二甲酸残基及其混合物组成的组,和(b)选自1,4-环己烷二甲醇残基,乙二醇残基及其混合物的二醇残基; 其中1,4-环己烷二甲醇与乙二醇的摩尔比为0.50以上; 并且其中第一组分和第二组分的总重量百分数等于100重量%; 并且其中聚碳酸酯(B)和聚酯(C)的第二组分的总重量百分比等于100重量%; 并且其中所述第一组分和第二组分的折射率绝对值不同于0.008或更小; 并且其中聚酯(A)和聚酯(C)各自的二酸残基的总摩尔百分数等于100摩尔%; 并且其中聚酯(A)和聚酯(C)各自的二醇残基的总摩尔百分数等于100摩尔%。