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:
Apr. 05, 2005
Filed:
Oct. 24, 2001
Mitsuru Kitada, Osaka-fu, JP;
Kazuo Kuba, Osaka-fu, JP;
Yutaka Hashimoto, Osaka-fu, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
An aqueous dispersion of a polyurethane resin obtainable from compounds including: (A) an organic polyisocyanate; (B) a polyester polyol containing an aromatic metal sulfonate group; (C) an aliphatic polyol being free from aromatic metal sulfonate and having a hydroxyl value of from 10 to 350; and (D) at least one of a polyamine and a polyol each having a molecular weight of 300 or lower, wherein the content of said aliphatic polyol unit (C) amounts to at least 55% by weight based on the solid content of said polyurethane resin. Also disclosed is an aqueous adhesive comprising the polyurethane resin aqueous dispersion.