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:
Sep. 11, 2001
Filed:
Sep. 17, 1999
Applicant:
Inventors:
Shoji Kawachi, Settsu, JP;
Kunihiko Honji, late of Tsurugashima, JP;
Tatsuro Uchida, Settsu, JP;
Osamu Shirasaki, Settsu, JP;
Masahiko Yamada, Settsu, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27J 5/00 ;
U.S. Cl.
CPC ...
B27J 5/00 ;
Abstract
A large molded article block free from distortion and residual stress can be obtained by means of a method of producing a polytetrafluoroethylene molded article by compression-molding a polytetrafluoroethylene powder to form a preform and baking the resulting preform with rotating. Furthermore, a film or sheet having less curling and wrinkle can be obtained by cutting the molded article block.