PREPARATION OF ANTIPLASTICIZERS FOR THERMOPLASTIC POLYESTERS
    35.
    发明公开
    PREPARATION OF ANTIPLASTICIZERS FOR THERMOPLASTIC POLYESTERS 有权
    制造固化热固性聚酯

    公开(公告)号:EP2688950A4

    公开(公告)日:2015-05-27

    申请号:EP12765577

    申请日:2012-02-09

    申请人: STEPAN CO

    摘要: A process for making bis(aryloxyalkyl)terephthalates useful as antiplasticizers for thermoplastic polyesters is disclosed. Dimethyl terephthalate is reacted with an excess of an aryloxyalkanol in the presence of a condensation catalyst to produce an intermediate mixture comprising a bis(aryloxyalkyl)terephthalate, a mono(aryloxyalkyl)terephthalate, and unreacted aryloxyalkanol. This mixture continues to react at reduced pressure while unreacted aryloxyalkanol is removed and the mono-ester content is reduced to less than 1 mole % based on the combined amounts of mono- and bis-esters. Both steps are performed substantially in the absence of oxygen. Additional unreacted aryloxyalkanol is then removed to provide a purified bis(aryloxyalkyl)terephthalate having an overall purity of at least 98 mole % and a yellowness index less than 10. Careful control over catalysis, exposure to air, and other process conditions enables the preparation of high yields of bis(aryloxyalkyl)terephthalates that have low color and other valuable attributes. A method of producing bis(aryloxyalkyl)terephthalate articles having improved compressive strength is also disclosed.

    THERMOPLASTIC POLYMER COMPOSITION AND STABILISER COMPOSITION
    39.
    发明公开
    THERMOPLASTIC POLYMER COMPOSITION AND STABILISER COMPOSITION 审中-公开
    热塑性弹性体聚合物固体聚苯乙烯(STERMILLASTISCHE POLYMERZUSAMMENSETZUNG UND STABILISATORZUSAMMENSETZUNG)

    公开(公告)号:EP2559736A1

    公开(公告)日:2013-02-20

    申请号:EP11768915.8

    申请日:2011-04-14

    摘要: The present invention provides a thermoplastic polymer composition containing a particular phenol compound or organic phosphorous compound, trehalose and a thermoplastic polymer, as well as a stabilizer composition containing a particular phenol compound or organic phosphorous compound and trehalose. A combined use of a particular phenol compound or organic phosphorous compound and trehalose can improve processing stability of a thermoplastic polymer composition.

    摘要翻译: 本发明提供含有特定的酚化合物或有机磷化合物,海藻糖和热塑性聚合物的热塑性聚合物组合物,以及含有特定的酚化合物或有机磷化合物和海藻糖的稳定剂组合物。 特定的酚化合物或有机磷化合物和海藻糖的组合使用可以提高热塑性聚合物组合物的加工稳定性。

    THERMOPLASTIC POLYMER COMPOSITION AND PROCESSING STABILISER
    40.
    发明公开
    THERMOPLASTIC POLYMER COMPOSITION AND PROCESSING STABILISER 审中-公开
    热塑性弹性体聚合物

    公开(公告)号:EP2559734A1

    公开(公告)日:2013-02-20

    申请号:EP11768913.3

    申请日:2011-04-14

    摘要: The present invention provides a thermoplastic polymer composition containing a particular phenol compound or organic phosphorous compound, glucose and a thermoplastic polymer, as well as a processing stabilizer containing a particular phenol compound or organic phosphorous compound and glucose. A combined use of a particular phenol compound or organic phosphorous compound and glucose can improve processing stability of a thermoplastic polymer composition.

    摘要翻译: 本发明提供含有特定的酚化合物或有机磷化合物,葡萄糖和热塑性聚合物的热塑性聚合物组合物,以及含有特定的酚化合物或有机磷化合物和葡萄糖的加工稳定剂。 特定的酚化合物或有机磷化合物和葡萄糖的组合使用可以提高热塑性聚合物组合物的加工稳定性。