发明授权
- 专利标题: Process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups
- 专利标题(中): 制备具有伯羟基端基的聚亚油酸酯多元醇的方法
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申请号: US13988606申请日: 2011-11-18
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公开(公告)号: US09328196B2公开(公告)日: 2016-05-03
- 发明人: Hartmut Nefzger , Jörg Hofmann , Erika Bauer , Bert Klesczewski , Klaus Lorenz
- 申请人: Hartmut Nefzger , Jörg Hofmann , Erika Bauer , Bert Klesczewski , Klaus Lorenz
- 申请人地址: DE Leverkusen
- 专利权人: Bayer MaterialScience AG
- 当前专利权人: Bayer MaterialScience AG
- 当前专利权人地址: DE Leverkusen
- 代理机构: Drinker Biddle & Reath LLP
- 优先权: EP10192094 20101122
- 国际申请: PCT/EP2011/070477 WO 20111118
- 国际公布: WO2012/069383 WO 20120531
- 主分类号: C08G63/91
- IPC分类号: C08G63/91 ; C08G63/06 ; C08G63/664 ; C08G63/87 ; C08G18/42 ; C08G18/36 ; C08G63/82 ; C08G18/40 ; C08G18/48 ; C08G18/66 ; C08G18/76 ; C08G18/08 ; C08G101/00
摘要:
The present invention relates to a process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups. It furthermore relates to polyricinoleic acid ester polyols obtainable according to the invention and polyurethane polymers prepared using these polyols. The process comprises the steps: a) polycondensation of ricinoleic acid until a hydroxyl number of >0 mg of KOH/g to 80% by weight to
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