US Patent 7462649 Method for recycling pet bottle
Patent 7462649 was granted and assigned to Teijin on December, 2008 by the United States Patent and Trademark Office.
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Patent abstract
A through process comprising depolymerization reaction of used PET bottles with EG, recovering DMT by ester interchange reaction with MeOH, obtaining terephthalic acid by hydrolysis of the recovered DMT, and manufacturing a PET polymer which can be used for manufacturing PET bottles again by using the terephthalic acid.
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US Patent 07462649 Method for recycling pet bottle US Patent 7462649 Method for recycling pet bottle
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Patent Number
0746264900
Patent Number
746264900
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Current Assignee
Patent Jurisdiction
Patent Number
074626490
Date of Patent
December 9, 2008
0Patent Application Number
104917830
Date Filed
October 16, 2002
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
074626490
Date of Patent
December 9, 2008
0Patent Application Number
104917830
Date Filed
October 16, 2002
0Official Website
Patent Primary Examiner
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US Patent 07462649 Method for recycling pet bottle
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07462649
Date of patent
December 9, 2008
Patent application number
10491783
Date Filed
October 16, 2002
Patent primary examiner
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