US Patent 7465781 Method for making polybenzobisoxazole containing polymer
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Patent abstract
A method of making polybenzobisoxazole containing polymer by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming a solidified polymer and heating the solidified polymer wherein ring closure occurs in the hydroxylated polymer.
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US Patent 07465781 Method for making polybenzobisoxazole containing polymer US Patent 7465781 Method for making polybenzobisoxazole containing polymer
Infobox
Patent Number
0746578100
Patent Number
746578100
Edits on 30 Mar, 2023
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Infobox
Is a
Patent Jurisdiction
Patent Number
074657810
Date of Patent
December 16, 2008
0Patent Application Number
111802340
Date Filed
July 13, 2005
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
074657810
Date of Patent
December 16, 2008
0Patent Application Number
111802340
Date Filed
July 13, 2005
0Official Website
Patent Primary Examiner
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US Patent 07465781 Method for making polybenzobisoxazole containing polymer
Infobox
Is a
Patent jurisdiction
Patent number
07465781
Date of patent
December 16, 2008
Patent application number
11180234
Date Filed
July 13, 2005
Patent primary examiner
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