US Patent 7501464 Process for producing aliphatic polyester composition
Patent 7501464 was granted and assigned to Kureha on March, 2009 by the United States Patent and Trademark Office.
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Patent abstract
For producing an aliphatic polyester resin composition containing a thermal stabilizer and a carboxyl group-capping agent, the aliphatic polyester resin is first mixed in a hot-melt state with the thermal stabilizer and then mixed in a hot-melt state with the carboxyl group-capping agent. As a result thereof, the resultant aliphatic polyester resin composition is provided with better moisture resistance and noticeably improved heat resistance (less coloring) than in the case where these additives are simultaneously added to effect the hot-melt mixing.
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Current Assignee
Patent Jurisdiction
Patent Number
75014640
Date of Patent
March 10, 2009
0Patent Application Number
115883410
Date Filed
October 27, 2006
0Patent Primary Examiner
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US Patent 07501464 Process for producing aliphatic polyester composition US Patent 7501464 Process for producing aliphatic polyester composition
Infobox
Patent Number
0750146400
Patent Number
750146400
Edits on 5 Apr, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
075014640
Date of Patent
March 10, 2009
0Patent Application Number
115883410
Date Filed
October 27, 2006
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
075014640
Date of Patent
March 10, 2009
0Patent Application Number
115883410
Date Filed
October 27, 2006
0Official Website
Patent Primary Examiner
Edits on 15 Jun, 2022
Golden AI
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US Patent 07501464 Process for producing aliphatic polyester composition
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07501464
Date of patent
March 10, 2009
Patent application number
11588341
Date Filed
October 27, 2006
Patent primary examiner
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