US Patent 7589136 Process for the preparation of a polymer composition
Patent 7589136 was granted and assigned to DSM (company) on September, 2009 by the United States Patent and Trademark Office.
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Patent abstract
The invention relates to a process for the preparation of a polymer composition, the process comprising a step of contacting a polymer that comprises carboxyl groups with a cyclic imino ether compound characterized in that the cyclic imino ether compound is a phenylene oxazine according to formula (I), in which formula R=an oxazine group according to formula (II) n=0, 1, 2, 3, 4 or 5 and that the polymer is contacted with said oxazine in an extruder at a temperature above 100° C.
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US Patent 07589136 Process for the preparation of a polymer composition US Patent 7589136 Process for the preparation of a polymer composition
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Patent Number
0758913600
Patent Number
758913600
Edits on 4 Apr, 2023
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
075891360
Date of Patent
September 15, 2009
0Patent Application Number
105723710
Date Filed
September 17, 2004
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
075891360
Date of Patent
September 15, 2009
0Patent Application Number
105723710
Date Filed
September 17, 2004
0Official Website
Patent Primary Examiner
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US Patent 07589136 Process for the preparation of a polymer composition
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07589136
Date of patent
September 15, 2009
Patent application number
10572371
Date Filed
September 17, 2004
Patent primary examiner
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