logo

For the Inventor, By the Inventor

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 9410004 B1

PDFFull Text
Date of Patent:
Aug. 09, 2016

Filed:

Aug. 08, 2013

Aromatic polyethersulfone microparticles having narrow particle diameter distribution index

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Itaru Asano, Nagoya, JP;

Yuji Echigo, Nagoya, JP;

Hiroshi Takezaki, Nagoya, JP;

Assignee:

Toray Industries, Inc., , JP;

Attorney:

DLA Piper LLP (US)

Primary Examiner:

Holly Le

Int. Cl.
CPC ...
B32B 5/16 (2006.01); C08F 120/44 (2006.01); C08G 75/23 (2006.01); C08J 3/16 (2006.01); C08L 55/02 (2006.01); C08L 71/12 (2006.01); C08L 81/06 (2006.01); C08G 64/40 (2006.01); C08G 65/46 (2006.01); C08G 69/46 (2006.01); C08G 73/10 (2006.01); C08L 63/00 (2006.01); C08L 77/00 (2006.01); C08L 29/04 (2006.01); C08L 39/06 (2006.01);
U.S. Cl.
CPC ...
C08F 120/44 (2013.01); C08G 64/40 (2013.01); C08G 65/46 (2013.01); C08G 69/46 (2013.01); C08G 73/1046 (2013.01); C08G 75/23 (2013.01); C08J 3/16 (2013.01); C08L 55/02 (2013.01); C08L 63/00 (2013.01); C08L 71/12 (2013.01); C08L 77/00 (2013.01); C08L 81/06 (2013.01); C08J 2339/06 (2013.01); C08J 2381/06 (2013.01); C08L 29/04 (2013.01); C08L 39/06 (2013.01); Y10T 428/2982 (2015.01);
Abstract

A fine polymer particle production method includes producing an emulsion in a liquid prepared by dissolving and mixing a polymer A and a polymer B in organic solvents in which a solution phase composed primarily of the polymer A and a solution phase composed primarily of the polymer B are formed as separate phases, and bringing it into contact with a poor solvent for the polymer A to precipitate the polymer A. This method serves for easy synthesis of fine polymer particles with a narrow particle size distribution and the method can be effectively applied to production of highly heat-resistant polymers that have been difficult to produce with the conventional methods.

Find Patent Forward Citations

Asano, Itaru. (2016). Aromatic polyethersulfone microparticles having narrow particle diameter distribution index (U.S. Patent No. 9410004). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9410004

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

Loading…