US Patent 7217780 Polyether ketone and method of producing the same
Patent 7217780 was granted and assigned to Mitsui Chemicals on May, 2007 by the United States Patent and Trademark Office.
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Patent abstract
There are disclosed, a polyether ketone having a primary particle size of 50 μm or less; and a method of producing a polyether ketone by a desalting polycondensation, which contains a step of conducting a polymerization reaction under a condition of deposition of the polymer. The polyether ketone obtained by the present invention has small particle size, high molecular weight and sufficiently small content of impurities such as alkali metal components.
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US Patent 07217780 Polyether ketone and method of producing the same US Patent 7217780 Polyether ketone and method of producing the same
Infobox
Patent Number
0721778000
Patent Number
721778000
Edits on 29 Mar, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072177800
Date of Patent
May 15, 2007
0Patent Application Number
104980960
Date Filed
December 10, 2002
0Official Website
Patent Primary Examiner
Edits on 25 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072177800
Date of Patent
May 15, 2007
0Patent Application Number
104980960
Date Filed
December 10, 2002
0Official Website
Patent Primary Examiner
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US Patent 07217780 Polyether ketone and method of producing the same
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07217780
Date of patent
May 15, 2007
Patent application number
10498096
Date Filed
December 10, 2002
Patent primary examiner
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