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:
Aug. 22, 1995
Filed:
Oct. 04, 1993
Applicant:
Inventors:
Yoneho Tabata, Tokyo, JP;
Kazushige Otsuhata, Tokyo, JP;
Tetsuya Ikeda, Fukuoka, JP;
Kohji Ueno, Ehime, JP;
Yuichi Yoshida, Saitama, JP;
Akihiro Oshima, Tochigi, JP;
Tadao Suguchi, Gunma, JP;
Hisaaki Kudoh, Gunma, JP;
Assignee:
Raytech Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08J / ;
U.S. Cl.
CPC ...
522-5 ; 522156 ;
Abstract
Modified PTFE is produced by exposing a starting PTFE to an ionizing radiation for a total dose of at least 100 kGy in the absence of oxygen at a temperature not lower than the crystal melting point of the starting PTFE. The thus modified PTFE is improved in radiation resistance and has rubber characteristics.