发明公开
- 专利标题： Production of polyol polyesters having reduced color content
- 专利标题（中）： 生产具有降低颜色含量的聚酯多元醇
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申请号： EP89306408.9申请日： 1989-06-23
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公开(公告)号： EP0349221A3公开(公告)日： 1990-05-02
- 发明人: Gibson, Michael Steven , Hawkins, Larry Nelson , Peffly, Marjorie Mossman , Kenneally, Corey James , Corrigan, Patrick Joseph
- 申请人： THE PROCTER & GAMBLE COMPANY
- 申请人地址： One Procter & Gamble Plaza Cincinnati, Ohio 45202 US
- 专利权人： THE PROCTER & GAMBLE COMPANY
- 当前专利权人： THE PROCTER & GAMBLE COMPANY
- 当前专利权人地址： One Procter & Gamble Plaza Cincinnati, Ohio 45202 US
- 代理机构： Gibson, Tony Nicholas
- 优先权： US364619 19890614; US213661 19880630
- 主分类号： C07H13/06
- IPC分类号： C07H13/06 ; C07C67/03
摘要：
Polyol polyesters having reduced color content are prepared by base-catalyzed transesterification of lower (i.e., C₁-C₃) alkyl fatty esters having a carbonyl content of less than about 200 ppm with polyols. The esters can be prepared by a pretreatment comprising distilling the said alkyl fatty esters (in a liquid state), preferably with a base, and discarding both the top cut in an amount that is about 5% or less and at least about 2% of the still bottoms.
公开/授权文献
- EP0349221B1 Production of polyol polyesters having reduced color content 公开/授权日：1996-09-18
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