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    POLYCARBONATE AND POLYESTER COMPOSITIONS
    3.
    发明公开
    POLYCARBONATE AND POLYESTER COMPOSITIONS 失效
    聚碳酸酯和聚酯组成

    公开(公告)号：EP0789722A1

    公开(公告)日：1997-08-20

    申请号：EP95938924.0

    申请日：1995-10-27

    申请人： THE DOW CHEMICAL COMPANY

    发明人： BALES, Stephen, E. ,  HEFNER, Robert, E., Jr. ,  SINGH, Rina

    IPC分类号： C08L67 ,  C08G63 ,  C08G64 ,  C08L69 ,  C08L101

    CPC分类号： C08G63/547 ,  C08G63/64 ,  C08G64/045

    摘要： Described is a polycarbonate, polyester, or polyestercarbonate composition prepared from a reaction mixture comprising at least one diol and at least one carbonate precursor or ester precursor, wherein at least 95 mole percent of the diol present in the reaction mixture consists of one or more aromatic diols, at least 10 mole percent of which consists of one or more stilbene diols. The composition of the invention advantageously has a relatively high thermal resistance, melting temperature, tensile and flexural properties, and/or resistance to thermal embrittlement. Moreover, the polymers of the invention which are thermotropic liquid crystalline also advantageously possess a broad temperature range for liquid crystallinity, good melt processibility, a low coefficient of thermal expansion, a high ignition resistance, high solvent resistance, and/or good barrier properties.

    Unsaturated polyesters and their preparation
    4.
    发明公开
    Unsaturated polyesters and their preparation 失效
    UngesättigtePolyester und deren Herstellung。

    公开(公告)号：EP0379761A1

    公开(公告)日：1990-08-01

    申请号：EP89300786.4

    申请日：1989-01-27

    申请人： ARCO Chemical Technology, L.P.

    发明人： Harris, Stephen H.

    IPC分类号： C08G63/58 ,  C08G63/52

    CPC分类号： C08G63/547

    摘要： The claimed polyesters having alternating structures of saturated and unsaturated esters are prepared by direct esterification of a bis(hydroxyalkyl) ester of an aromatic diacid with an unsaturated diacid or an unsaturated diacid anhydride.

    摘要翻译： 具有饱和和不饱和酯交替结构的所要求保护的聚酯通过芳族二酸的双（羟烷基）酯与不饱和二酸或不饱和二酸酐直接酯化来制备。

    Process for the preparation of modified aromatic hydrocarbon resin
    6.
    发明公开
    Process for the preparation of modified aromatic hydrocarbon resin 失效
    一种用于改性的芳族烃类树脂的制备方法。

    公开(公告)号：EP0064866A1

    公开(公告)日：1982-11-17

    申请号：EP82302315.5

    申请日：1982-05-06

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Miyamoto, Akira ,  Yamagishi, Yoshitaka ,  Sato, Katsuo ,  Mitui, Yoshimasa ,  Nishimura, Toshiaki

    IPC分类号： C08G63/54 ,  C08G10/04

    CPC分类号： C08G63/547

    摘要： process for the preparation of a modified aromatic hydrocarbon resin which comprises reacting an aromatic hydrocarbon-formaldehyde resin with an unsaturated polybasic acid or an anhydride thereof, together with a saturated polybasic acid or an anhydride thereof if necessary, in the presence or absence of water, while introducing steam into the reaction system to remove by-produced formaldehyde out of the reaction system, and reacting the formed reaction product with at least one dihydroxy compound selected from the group consisting of (A) a glycol and (B) a hydroxy-terminated oligomer obtained by reacting a glycol with an unsaturated polybasic acid or an anhydride thereof; the cured product of the modified aromatic hydrocarbon resin being excellent in mechanical strength and resistance to water and alkalis.