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:
Nov. 10, 2020
Filed:
Jun. 17, 2016
Applicant:
Kaneka Corporation, Osaka, JP;
Inventors:
Assignee:
KANEKA CORPORATION, Osaka-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); B29C 41/24 (2006.01); B29C 41/46 (2006.01); C08G 73/10 (2006.01); C09D 179/08 (2006.01); B29C 55/02 (2006.01); C08L 79/08 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B29C 41/24 (2013.01); B29C 41/46 (2013.01); B29C 55/02 (2013.01); C08G 73/105 (2013.01); C08G 73/1042 (2013.01); C08G 73/1071 (2013.01); C08L 79/08 (2013.01); C09D 179/08 (2013.01); C08J 2379/08 (2013.01); C08L 2203/16 (2013.01);
Abstract
The present invention provides a process for producing a polymer film at high productivity: during a process for drying gripped portions of both edges of a gel film, a first heat treatment is performed by blowing hot air in the film width direction and a second heat treatment is performed by blowing hot air at gripped portions of both edges of the gel film in a direction parallel to the film running direction.