发明授权
US07005552B2 Single reactor synthesis of KOH-capped polyols based on DMC-synthesized intermediates 有权
基于DMC合成的中间体的单体反应器合成KOH-封端的多元醇

  • 专利标题: Single reactor synthesis of KOH-capped polyols based on DMC-synthesized intermediates
  • 专利标题(中): 基于DMC合成的中间体的单体反应器合成KOH-封端的多元醇
  • 申请号: US10699951
    申请日: 2003-11-03
  • 公开(公告)号: US07005552B2
    公开(公告)日: 2006-02-28
  • 发明人: Bryan D. Kaushiva
  • 申请人: Bryan D. Kaushiva
  • 申请人地址: US PA Pittsburgh
  • 专利权人: Bayer Materialscience LLC
  • 当前专利权人: Bayer Materialscience LLC
  • 当前专利权人地址: US PA Pittsburgh
  • 代理商 Joseph C. Gil; John E. Mrozinski, Jr.
  • 主分类号: C07C41/02
  • IPC分类号: C07C41/02
Single reactor synthesis of KOH-capped polyols based on DMC-synthesized intermediates
摘要:
The present invention relates to processes for preparing ethylene oxide (EO)-capped polyols in which removal of catalyst residues or salts formed by the neutralization of the basic catalyst is not required prior to discharging the polyol from the reactor because neutralization occurs during or after the starter charge of a subsequent batch. The inventive processes allow for the preparation of DMC-catalyzed intermediates and their base-catalyzed EO caps within the same reactor. Polyols produced by the processes of the invention have a high content of primary hydroxyl groups and may be useful for producing polyurethane foams, elastomers, sealants, coatings, adhesives and the like.
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