US Patent 7678729 Process for the preparation of polyether polyols
Patent 7678729 was granted and assigned to Bayer MaterialScience on March, 2010 by the United States Patent and Trademark Office.
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Patent abstract
The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials.
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Patent Inventor Names
Jorg Hofmann0
Klaus Lorenz0
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US Patent 07678729 Process for the preparation of polyether polyols US Patent 7678729 Process for the preparation of polyether polyols
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Patent Number
07678729
Patent Number
7678729
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Official Website
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US Patent 07678729 Process for the preparation of polyether polyols
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Is a
Current assignee
Patent jurisdiction
Patent number
07678729
Date of patent
March 16, 2010
Patent application number
11804546
Date Filed
May 18, 2007
Patent primary examiner
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