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:
Jun. 09, 1998
Filed:
Jul. 07, 1997
Applicant:
Inventors:
Masayuki Okawa, Tochigi-Ken, JP;
Masayasu Sato, Tochigi-Ken, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427130 ; 427128 ; 427365 ;
Abstract
A process for producing a magnetic recording medium comprising applying a magnetic coating composition to a substrate to form a magnetic layer and subjecting the coated substrate to calendering, wherein the elastic roll used in the calendering has a water absorption of 0.1 to 5% by weight per unit volume and a Shore hardness of not less than 90, and the magnetic layer immediately before being calendered has a residual solvent content of 100 to 5000 ppm.