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:
Sep. 14, 1999
Filed:
Aug. 25, 1997
Shinichi Asano, Kobe, JP;
Hiroyuki Ohashi, Neyakawa, JP;
Hiromasa Kondo, Urawa, JP;
Kazuhiro Nojima, Kobe, JP;
Katsuyoshi Imabeppu, Amagasaki, JP;
Mamoru Sakaki, Yamato, JP;
Eiichi Suzuki, Asaka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Oji Paper Co., Ltd., Tokyo, JP;
Abstract
A cast coated paper for ink jet recording is constituted to include, in lamination: a base paper, an undercoating layer comprising a pigment and an adhesive, and a cast-coating layer comprising a polymer having a glass transition point of at least 40.degree. C. formed by polymerization of an ethylenically unsaturated monomer. The cast coated paper is preferably controlled to have an air permeability of at most 300 sec/100 cc. The undercoating preferably contains a cationic resin, particularly preferably a copolymer of a polyalkylenepolyamine and dicyandiamide. The cast coated paper thus produced with an excellent ink absorptivity suitable for ink jet recording while retaining a high surface gloss.