Polytrimethylene ether glycol and polytrimethylene ether ester with excellent quality
    3.
    发明授权
    Polytrimethylene ether glycol and polytrimethylene ether ester with excellent quality 有权
    聚三亚甲基醚二醇和聚三亚甲基醚酯具有优良的品质

    公开(公告)号:US07323539B2

    公开(公告)日:2008-01-29

    申请号:US10918079

    申请日:2004-08-12

    CPC分类号: C08G65/34

    摘要: A process is provided comprising contacting 1,3-propanediol with a suitable polymerization catalyst to produce polytrimethylene ether glycol or random polytrimethylene ether ester, wherein the 1,3-propanediol comprises about 10 microg/g or less peroxide compounds, based on the weight of 1,3-propanediol, and about 100 microg/g or less carbonyl compounds based on the weight of the 1,3-propanediol. Preferably, the 1,3-propanediol comprises about 100 microg/g or less of monofunctional alcohol compounds based on the weight of the PDO. In addition, polytrimethylene ether glycol and random polytrimethylene ether ester prepared by the process.

    摘要翻译: 提供了一种方法,其包括使1,3-丙二醇与合适的聚合催化剂接触以产生聚三亚甲基醚二醇或无规聚三亚甲基醚酯,其中1,3-丙二醇包含约10微克/克或更少的过氧化物,基于 1,3-丙二醇和约100微克/克以下的基于1,3-丙二醇重量的羰基化合物。 优选地,1,3-丙二醇基于PDO的重量包含约100微克/克或更少的单官能醇化合物。 另外,通过该方法制备聚三亚甲基醚二醇和无规聚三亚甲基醚酯。