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:
Aug. 05, 1997
Filed:
Feb. 28, 1996
Toshiyuki Hasegawa, Osaka, JP;
Yoshifumi Yoshida, Hyogo, JP;
Akira Tanikawa, Osaka, JP;
Fujiko Kumei, Osaka, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A paper coating composition comprising (I) a pigment, (II) an aqueous binder, and (III) a water-soluble resin obtainable by the reaction of at least (a) an alkylenediamine or a polyalkylenepolyamine, (b) an urea compound, and (c) a compound selected from aldehydes, epihalohydrins and is further improved by incorporating therein, (IV) a compound selected from the group consisting of (f) amines selected from the group consisting of monoamines, diamines and their salts each having at least 4 carbon atoms, (g) quaternary organic ammonium salts, and (h) polyamides obtainable by the reaction between a dibasic carboxylic compound and a polyamine. The water-soluble resin of the component (III) may be further allowed to react with a dibasic carboxylic compound, an alicyclic amine and/or an alicyclic epoxy compound in addition to the above three ingredients. Paper coated by using the above composition is especially excellent in ink receptivity and water resistance.