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:
May. 12, 1987
Filed:
Aug. 30, 1985
Applicant:
Inventor:
Toru Katsura, Tokyo, JP;
Assignee:
Mitsubishi Paper Mills, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430538 ; 162135 ; 162158 ; 162175 ; 162169 ; 1621683 ; 428513 ;
Abstract
A photographic paper support comprising a base paper coated on both sides with a polyolefin resin is markedly improved in resistance to the stain occurring around the edges after development processing (edge stain), by the inclusion of an anionic polyacrylamide and a cationic starch in said base paper.