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:
Feb. 12, 1985
Filed:
May. 03, 1983
Marvin T Tetenbaum, Wexford, PA (US);
Burlon C Crowley, Toms River, NJ (US);
NL Industries, Inc., New York, NY (US);
Abstract
A water dispersible, modified polyurethane which is the reaction product of polyisocyanate, polyether polyol, modifying agent containing at least two active hydrogen moieties and capping agent. The modified polyurethane is preferably prepared by reacting the polyisocyanate, the polyether polyol and the modifying agent and then adding the capping agent. The modified polyurethane resists microbial attack, exhibits superior efficiency in thickening aqueous compositions and imparts improved leveling. Included among the modifying agents are ethylene diamine, 1,6-diaminohexane, 1,10-diaminodecane, N-phenyl-p-phenylenediamine, succinic acid, suberic acid, sebacic acid, 1,10-decanedicarboxylic acid, 1,4-benzene-dicarboxylic acid, ethanolamine, 2-(ethylamino)ethanol, and p-carboxyphenol and mixtures thereof.