COPOLYESTER WITH HIGH CARBOXYL END GROUPS AND A METHOD FOR MAKING
    105.
    发明授权
    COPOLYESTER WITH HIGH CARBOXYL END GROUPS AND A METHOD FOR MAKING 有权
    共聚酯HIGH端羧基和方法

    公开(公告)号:EP1366103B1

    公开(公告)日:2009-08-05

    申请号:EP01946545.9

    申请日:2001-06-20

    Inventor: HUANG, Xiaoyan

    Abstract: The present invention relates to a composition comprising: a copolyester of polyethylene terephthalate and a dicarboxylic acid or its ester equivalent, and not more than 100 microequivalents per gram of said copolyester of an anhydride selected from the class consisting of succinic, glutaric, benzoic, maleic and phthalic anhydride, said composition having a CEG content greater than about 25 microequivalents per gram and an IV greater than about 0.65. The present invention also concerns a method of making a composition having reduced caustic stress cracking, comprising: reacting terephthalic acid or its ester equivalent and another dicarboxylic acid with ethylene glycol by esterification followed by polycondensation to make a polyethylene terephthalate copolyester; adding at the end of said polycondensation not more than 100 microequivalents per gram based on said copolyester of an anhydride selected from the class consisting of succinic, glutaric, maleic, benzoic, and phthalic anhydride, said composition having a CEG content greater than about 25 microequivalents per gram.

    Spandex having enhanced whiteness and fabrics and garments comprising the same

    公开(公告)号:EP2050844A1

    公开(公告)日:2009-04-22

    申请号:EP08075945.9

    申请日:2006-11-14

    CPC classification number: D01F1/10 D01F1/106 D01F6/70 D01F6/94

    Abstract: The invention provides spandex having an initial CIE whiteness of at least about 95 as measured by AATCC Test Method 110-1994, the spandex comprising an optical brightener selected from the group consisting of an oxazole, a biphenyl, a coumarin, a stilbene, a pyrazolene, a rhodamine, and a fluorescein, or a combination of such members, and an ultraviolet screener selected from the group consisting of a triazine, a benzotriazole, and oxalanilide, a benzophenone, and a bismalonate, or a combination of such members.

    Abstract translation: 本发明提供具有通过AATCC测试方法110-1994测量的至少约95的初始CIE白度的氨纶,该氨纶包含选自恶唑,联苯,香豆素,芪,吡唑啉的荧光增白剂 ,罗丹明和荧光素,或这些成分的组合,以及选自三嗪,苯并三唑和氧酰丙啶,二苯甲酮和铋酸盐的紫外线筛选剂,或其组合。

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