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. 25, 1993
Filed:
Oct. 19, 1990
Applicant:
Inventors:
Assignee:
Oji Paper Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428195 ; 428211 ; 428913 ; 428914 ; 428331 ;
Abstract
An aqueous ink-jet recording sheet capable of recording clear, brilliant color images, and having a high water resistance, storage durability and resistance to curling and undulations, comprises a neutral paper substrate sheet having a Stoechigt sizing degree of 1 to 15 seconds; and an aqueous ink image-receiving layer in a basis weight of 0.5 to 10 g/m.sup.2 and comprising (a) fine, oil absorbing silica particles, (b) polyvinyl alcohol binder and (c) a water resisting agent comprising a cationic, water-soluble acrylic copolymer having side chains attached to a vinyl backbone chain and each having at least two cationic radicals.