The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8288475 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 16, 2012

Filed:

Jul. 06, 2011
Applicant:

Kimiaki Kashiwagi, Tokyo, JP;

Inventor:

Kimiaki Kashiwagi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 27/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process is disclosed for producing an electret, which includes a step of thermally treating a composition including a fluorinated polymer and a silane coupling agent, where the fluorinated polymer has an alicyclic structure in its main chain and has a carboxy group or an alkoxycarbonyl group as its terminal group. The silane coupling agent has an amino group; and the temperature for the thermal treatment is from 250° C. to 330° C.


Find Patent Forward Citations

Kashiwagi, Kimiaki. (2012). Process for producing electret, and electrostatic induction conversion device (U.S. Patent No. 8288475). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8288475

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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