发明公开
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON POLYESTERPOLYOLEN, DIE DAMIT HERGESTELLTEN POLYESTERPOLYOLE UND DARAUS ERHALTENE POLYURETHANE
- 专利标题（英）： Method for producing polyester polyols, polyester polyols produced by said method and polyurethanes obtained therefrom
- 专利标题（中）： 用于生产所产生的聚酯多元醇聚酯多元醇以及它们的得到的聚氨酯
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申请号： EP10796362.1申请日： 2010-12-15
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公开(公告)号： EP2513189A1公开(公告)日： 2012-10-24
- 发明人: GEHRINGER, Lionel , DUWENHORST, Jörn , LAMMERS, Fin , WILMS, Axel
- 申请人： BASF SE
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： 67056 Ludwigshafen DE
- 代理机构： Jacobi, Markus Alexander
- 优先权： EP09179515 20091216
- 国际公布： WO2011083000 20110714
- 主分类号： C08G63/12
- IPC分类号： C08G63/12 ; C08G63/16 ; C08G18/00 ; C08G18/08 ; C08G63/78 ; C08K5/524
摘要：
The invention relates to a method for producing a polyester polyol comprising the following method steps: (a) producing a reaction mixture comprising the following components: A: at least one carboxylic acid obtained from natural raw materials, having at least two acid groups, B: at least one multivalent alcohol, C: at least one organic phosphite compound, D: at least one Lewis acid; (b) heating the reaction mixture to a temperature of at least 160°C and separating the water that is generated during the reaction; (c) heating the reaction mixture to a temperature of at least 210°C at a pressure below 1013 mbar for a period of 0.1 to 25 hours.
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