发明授权
- 专利标题: Process for the production of polyether polyols
- 专利标题(中): 制备聚醚多元醇的方法
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申请号: US239247申请日: 1981-03-02
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公开(公告)号: US4380502A公开(公告)日: 1983-04-19
- 发明人: Hanns P. Muller , Claus-Dieter Sommerfeld , Gernot Becker
- 申请人: Hanns P. Muller , Claus-Dieter Sommerfeld , Gernot Becker
- 申请人地址: DEX Bayerwerk
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Bayerwerk
- 优先权: DEX3012001 19800328
- 主分类号: C08G18/00
- IPC分类号: C08G18/00 ; C08G18/48 ; C08G65/00 ; C08G65/26 ; C08G65/28 ; C08G65/32 ; C07H3/04 ; C09K3/00
摘要:
Polyether polyols are made by alkoxylating a mixture which is from 20-80 weight % sucrose and 80-20 weight % formitol. The product polyether polyols have an average hydroxyl functionality of at least 3 and a hydroxyl number of from 28 to 1000. These polyether polyols are particularly useful for the production of rigid polyurethane foams.
公开/授权文献
- US5491767A Germanate glass for mid-infrared medical optical fiber 公开/授权日:1996-02-13