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:
Jul. 14, 2015
Filed:
Sep. 27, 2011
Yuji Echigo, Nagoya, JP;
Itaru Asano, Nagoya, JP;
Hiroshi Kobayashi, Nagoya, JP;
Hiroshi Takezaki, Nagoya, JP;
Yuji Echigo, Nagoya, JP;
Itaru Asano, Nagoya, JP;
Hiroshi Kobayashi, Nagoya, JP;
Hiroshi Takezaki, Nagoya, JP;
Toray Industries, Inc., , JP;
Abstract
A process of producing polymer microparticles wherein, in a system which includes a polymer (A), a polymer (B) and an organic solvent and can cause phase separation into two phases of a solution phase mainly composed of the polymer (A) and a solution phase mainly composed of the polymer (B) when the polymer (A), the polymer (B) and the organic solvent are dissolved and mixed together, after an emulsion is formed at a temperature of 100° C. or higher, the polymer (A) is precipitated by bringing a poor solvent for the polymer (A) into contact with the emulsion.