Process for producing new polyester resin and product thereof
    1.
    发明授权
    Process for producing new polyester resin and product thereof 失效
    新型聚酯树脂的制造方法及其制造方法

    公开(公告)号:US4387211A

    公开(公告)日:1983-06-07

    申请号:US332891

    申请日:1981-12-21

    CPC分类号: C08G63/668

    摘要: A new polyester resin is produced by condensation polymerization of (a) a diol component of the formula: ##STR1## wherein R.sup.1 is an alkylene group of 2 to 4 carbon atoms; and x and y are positive integers, the sum of them being 2 to 16 on an average, and (b) an acid component of polybasic (at least dibasic) carboxylic acid, anhydride thereof, and lower alkyl ester thereof, said acid component (b) containing 1 to 50 mol % of a dibasic carboxylic acid or anhydride thereof of the formula: ##STR2## where R.sup.2 and R.sup.3 are saturated or unsaturated hydrocarbon groups of 4 to 20 carbon atoms and 10 to 30 mol % of trimellitic acid or anhydride thereof. The polyester has improved toughness, abrasion resistance and flexibility.

    摘要翻译: 通过(a)下式的二醇组分:其中R 1是2至4个碳原子的亚烷基;(I)的二醇组分的缩聚制备新的聚酯树脂; 和x和y是正整数,它们的平均值为2-16,和(b)多元酸(至少二元)羧酸,其酸酐和其低级烷基酯的酸组分,所述酸组分( b)含有1至50mol%下式的二元羧酸或其酸酐:其中R 2和R 3是4至20个碳原子的饱和或不饱和烃基和10至30mol%的偏苯三酸或酸酐 其中。 聚酯具有改善的韧性,耐磨性和柔韧性。