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:
Mar. 15, 1994
Filed:
Mar. 11, 1993
Yukichi Deguchi, Otsu, JP;
Yukio Noguchi, Shiga, JP;
Masaaki Sudo, Kyoto, JP;
Kiyohiko Ito, Otsu, JP;
Toray Industries, Inc., , JP;
Abstract
The present invention provides a polyphenylene sulfide film which consists essentially of a resin composition containing polyphenylene sulfide as major constituent, in which fine particles with an average particle size of 0.05-3 .mu.m are dispersed, the fine particles having a single particle index of not less than 0.5. The polyphenylene sulfide film of the present invention is excellent in not only the slipping property but also the number of electrical insulation defects are extremely small, so that the film of the present invention is useful for the dielectric film of film capacitor with stable initial characteristics. Further, since the film of the present invention is excellent in the slipping property and surface smoothness, so that it is useful as a base film for magnetic recording media with excellent magnetic conversion characteristics and excellent drop out characteristics.