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:
Jul. 09, 1996
Filed:
Apr. 25, 1994
Applicant:
Inventors:
Kenichi Ueyama, Tochigi-ken, JP;
Hiroshi Kawamukai, Tochigi-ken, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; G11B / ;
U.S. Cl.
CPC ...
428 642 ; 428 643 ; 428 651 ; 428 653 ; 428 655 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428447 ; 428522 ; 428704 ; 428900 ;
Abstract
A recording medium, showing sufficient resistance to contamination and having excellent reproducing characteristics, comprises a film provided on a surface thereof and this film comprises a copolymer formed by polymerizing a composition which comprises a compound A having a (meth)acryloyl group and a reactive antistatic agent B having a quaternary ammonium salt group, an alkylene glycol chain, a hydrocarbon group of which carbon number is four or more and a copolymerizable group.