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. 16, 1993
Filed:
Nov. 15, 1990
Applicant:
Inventors:
Assignee:
Somar Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ;
U.S. Cl.
CPC ...
428141 ; 428142 ; 428143 ; 428341 ; 428336 ; 428334 ; 4284735 ; 4284777 ; 4284744 ; 428483 ; 4284763 ; 428500 ; 428501 ; 428502 ; 428504 ; 428505 ; 428506 ; 4284774 ; 428480 ; 428525 ; 428408 ; 428340 ; 428323 ; 428327 ; 428422 ; 428421 ; 524496 ; 524520 ; 252511 ;
Abstract
A composite film is disclosed which includes (a) a synthetic resin substrate film having a roughened surface, and (b) a thin, slippery, electrically conducting layer coated over the roughened surface. The conducting layer contains 2-10% by weight of carbon black, 10-40% by weight of a fluorine resin, 25-78% by weight of a hardened binder resin selected from hardened amino resins, hardened phenol resins and mixtures thereof, and 7-25% by weight of a modifying resin selected from polyurethane resins, acrylic resins, polyester resins and mixtures thereof, the total amount of the hardened binder resin and the modifying resin being 50-85% by weight.