US Patent 7931967 Thermally foamable microsphere and production process thereof
Patent 7931967 was granted and assigned to Kureha on April, 2011 by the United States Patent and Trademark Office.
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Patent abstract
The invention provides a thermally foamable microsphere having a structure with a foaming agent encapsulated in a shell formed of a polymer, wherein the shell contains an organosilicon compound, and a process for producing a thermally foamable microsphere having a structure with a foaming agent encapsulated in a shell formed of a polymer by suspension polymerization of a polymerizable mixture containing at least a foaming agent and a polymerizable monomer in an aqueous dispersion medium, wherein the polymerizable mixture is suspension polymerized in the presence of the organosilicon compound.
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Patent Inventor Names
Genzo Asai0
Yasuhiro Tasaki0
Yoshikatsu Satake0
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Official Website
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US Patent 07931967 Thermally foamable microsphere and production process thereof US Patent 7931967 Thermally foamable microsphere and production process thereof
Infobox
Patent Number
079319670
Patent Number
79319670
Edits on 28 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079319670
Date of Patent
April 26, 2011
0Patent Application Number
104802070
Date Filed
June 10, 2002
0Official Website
Patent Primary Examiner
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Website URL
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US Patent 07931967 Thermally foamable microsphere and production process thereof
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07931967
Date of patent
April 26, 2011
Patent application number
10480207
Date Filed
June 10, 2002
Patent primary examiner
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