发明授权
- 专利标题： Process for preparing polyols
- 专利标题（中）： 多元醇制备方法
-
申请号： US107242申请日： 1979-12-26
-
公开(公告)号： US4282387A公开(公告)日： 1981-08-04
- 发明人: Franciszek Olstowski , John L. Nafziger
- 申请人： Franciszek Olstowski , John L. Nafziger
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C08G18/48
- IPC分类号： C08G18/48 ; C08G65/26 ; C08G65/28
摘要：
The invention describes an improved process for preparing polyols by reacting a mono-epoxy compound such as propylene oxide with a hydroxyl-containing initiator compound such as glycerine in the presence of a catalyst, the improvement being that the catalyst is added in the form of a calcium, strontium or barium salt of an organic acid such as acetic acid.Polyols prepared by this process can be employed to prepare polyurethanes without removing the catalyst.
公开/授权文献
- USD427841S Food fryer 公开/授权日：2000-07-11
信息查询
