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Title:
脂肪族オリゴカーボネートジオールの製造方法
Document Type and Number:
Japanese Patent JP2004533474
Kind Code:
A
Abstract:
The present invention relates to a process for producing an aliphatic oligocarbonate diol comprising a) reacting an aliphatic diol with dimethyl carbonate at an elevated pressure in a reaction mixture, and b) subsequently removing unreacted methanol and dimethyl carbonate under a reduced pressure to uncap the terminal OH groups.

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Inventors:
Jörg Tilak
Jörg Rayu
Herbert Witsek
Andreas Shremenato
Application Number:
JP2003509008A
Publication Date:
November 04, 2004
Filing Date:
June 27, 2002
Export Citation:
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Assignee:
Bayer Aktiengesellschaft
International Classes:
C07B61/00; C07C69/96; C08G64/30; C07C68/06; (IPC1-7): C07C68/06; C07C69/96
Attorney, Agent or Firm:
Aoyama Aoi
Muneo Yamamoto



 
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