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.:
Date of Patent:
Oct. 22, 2013
Filed:
Mar. 23, 2009
Kei Makita, Nagoya, JP;
Takae Ono, Nagoya, JP;
Toshiya Takahashi, Nagoya, JP;
Hiroaki Akasaka, Nagoya, JP;
Tomohiro Sakane, Nagoya, JP;
Kei Makita, Nagoya, JP;
Takae Ono, Nagoya, JP;
Toshiya Takahashi, Nagoya, JP;
Hiroaki Akasaka, Nagoya, JP;
Tomohiro Sakane, Nagoya, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
This invention provides a process for producing fine PPS resin particles and dispersion thereof by industrially applicable simple operation. This invention further provides very fine PPS resin particles, and furthermore provides fine PPS resin particles uniform in particle size. This invention is a process for producing fine polyphenylene sulfide resin particles comprising the following steps (a) and (b); (a) a step of heating a polyphenylene sulfide resin in an organic solvent, for obtaining a solution with the polyphenylene sulfide resin dissolved therein (dissolution step) (b) a step of flushing-cooling the aforementioned solution, for precipitating the fine particles of the polyphenylene sulfide resin (precipitation step).