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:
Jan. 09, 2007
Filed:
Mar. 16, 2005
Applicants:
Hidekazu Yamazaki, Kanagawa, JP;
Tadahiro Tsujimoto, Kanagawa, JP;
Yukihiro Katai, Kanagawa, JP;
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for the preparation of polymer solutions contains a stirring device, a cooling device connected to the stirring device and a warming device connected to the cooling device. Both the warming device and the cooling device are characterized by including a rotary screw. The stirring device functions to mix a polymer with a solvent to produce a swelled polymer in the solvent. The incorporation of a screw into the warming or cooling device allows the temperature of the solution to change while simultaneous mixing and shear is provided.