PROCESS FOR MAKING DICYCLOPENTADIENE POLYETHERESTER RESINS
    1.
    发明公开
    PROCESS FOR MAKING DICYCLOPENTADIENE POLYETHERESTER RESINS 有权
    方法来表示双环戊二烯聚醚

    公开(公告)号:EP1023355A1

    公开(公告)日:2000-08-02

    申请号:EP98947459.8

    申请日:1998-08-26

    摘要: A low-cost way to modulate the reactivity and acid number of polyetherester thermoset resins is disclosed. 'Beginning' and 'end' methods for making dicyclopentadiene (DCPD)-modified polyetherester resins are described. The 'beginning' method comprises first heating a polyether, DCPD, a diol, an insertion catalyst, and a carboxylic acid derivative to produce a mixture that contains the polyether and a DCPD-diol diester adduct. Increasing the temperature causes insertion of the DCPD-diol diester into the polyether to give a DCPD polyetherester resin. The 'end' method reacts a polyetherester resin made by insertion with DCPD to give a DCPD polyetherester resin. Compared with DCPD polyester resins, those of the invention give more flexible thermosets. Compared with unmodified polyetherester resins, the DCPD polyetherester resins offer formulators more control over curing, which eliminates mold distortion and shrinking or cracking of thermoset parts. Thermosets from blends of the subject resins and DCPD polyester resins show synergistic property improvements compared with thermosets from either resin alone.

    POLYETHERESTER RESINS FROM DIOL DIESTERS
    2.
    发明公开
    POLYETHERESTER RESINS FROM DIOL DIESTERS 失效
    来自二醇二酯的聚醚树脂

    公开(公告)号:EP0888396A1

    公开(公告)日:1999-01-07

    申请号:EP97914236.0

    申请日:1997-03-13

    IPC分类号: C07C69 C08G63 C08G65

    摘要: A process for making polyetherester resins is disclosed. The process comprises reacting a polyether with a diol diester in the presence of a catalyst that promotes random insertion of the diester into carbon-oxygen bonds of the polyether to produce the polyetherester resin. The process of the invention offers many advantages, including higher resin yields, reduced by-product generation, and the ability to make resins with low color and low acid numbers. The resins are useful for making polyetherester thermosets.

    摘要翻译: 公开了一种制备聚醚酯树脂的方法。 该方法包括使聚醚与二醇二酯在促进二酯随机插入聚醚的碳 - 氧键中以制备聚醚酯树脂的催化剂存在下反应。 本发明的方法提供许多优点,包括较高的树脂收率,减少的副产物产生,以及制造低色度和低酸值树脂的能力。 该树脂可用于制造聚醚酯热固性材料。

    PROCESS FOR MAKING HIGH-PERFORMANCE POLYETHERESTER RESINS AND THERMOSETS
    5.
    发明公开
    PROCESS FOR MAKING HIGH-PERFORMANCE POLYETHERESTER RESINS AND THERMOSETS 失效
    用于生产高,POLYÄTHERESTERHARZEN热固性组合物

    公开(公告)号:EP0883641A1

    公开(公告)日:1998-12-16

    申请号:EP97904419.0

    申请日:1997-02-12

    IPC分类号: C08G63 C08F283 C08G59

    CPC分类号: C08F283/06 C08G63/676

    摘要: A process for making high-performance polyetherester resins and thermosets is disclosed. A polyether polyol reacts with a dicarboxylic acid or anhydride in the presence of an insertion catalyst to produce an acid-terminated polyetherester resin. Reaction of this resin reacts with a primary diol or a diepoxy compound gives a chain-extended polyetherester resin that can be cured with a vinyl monomer to produce a high-performance polyetherester thermoset. Properties of the thermosets rival or exceed those or more expensive high-performance iso and vinyl ester resins.