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. 23, 2014
Filed:
Aug. 03, 2010
Takeshi Yamada, Ube, JP;
Masahiro Naiki, Ube, JP;
Takeshi Yamada, Ube, JP;
Masahiro Naiki, Ube, JP;
Ube Industries Ltd., Ube-Shi, JP;
Abstract
An object of this invention is to obtain an aqueous polyurethane resin dispersion having excellent drying property, which can provide a coating film having high hardness. The aqueous polyurethane resin dispersion comprises a polyurethane resin obtained by reacting (a) a polyol compound, (b) a polyisocyanate compound, (c) an acidic group-containing polyol compound and (d) a chain-elongating agent, which is being dispersed in an aqueous medium, wherein the above-mentioned (a) polyol compound contains at least (a1) a polycarbonate polyol having an alicyclic structure at the main chain and (a2) a polymer polyol having a number average molecular weight of 500 to 5000 and having no alicyclic structure.