US Patent 7645853 Processes for producing random polytrimethylene ether ester
Patent 7645853 was granted and assigned to E.I. Du Pont De Nemours And Company on January, 2010 by the United States Patent and Trademark Office.
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Patent abstract
Processes for preparing random polytrimethylene ether ester are provided. The processes include contacting 1,3-propanediol with a suitable polymerization catalyst, wherein the 1,3-propanediol comprises about 10 microg/g or less peroxide compounds, based on the weight of 1,3-propanediol, and about 100 microg/g or less carbonyl compounds based on the weight of the 1,3-propanediol.
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US Patent 07645853 Processes for producing random polytrimethylene ether ester US Patent 7645853 Processes for producing random polytrimethylene ether ester
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Patent Number
0764585300
Patent Number
764585300
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076458530
Date of Patent
January 12, 2010
0Patent Application Number
119501810
Date Filed
December 4, 2007
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076458530
Date of Patent
January 12, 2010
0Patent Application Number
119501810
Date Filed
December 4, 2007
0Official Website
Patent Primary Examiner
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US Patent 07645853 Processes for producing random polytrimethylene ether ester
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07645853
Date of patent
January 12, 2010
Patent application number
11950181
Date Filed
December 4, 2007
Patent primary examiner
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