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:
Jan. 21, 2003
Filed:
Jul. 26, 2000
Lutz Hoppe, Walsrode, DE;
Hans-Günter Poersch-Panke, Bomlitz, DE;
Klaus Nachtkamp, Walsrode, DE;
Wolff Walsrode AG, Walsrode, DE;
Abstract
An oil-in-water coating agent is described. The coating agent emulsion is prepared from a composition comprising: a) 5.0 to 50 wt. % of cellulose substance; b) 5.0 to 50 wt. % of at least one hydroxyl group-containing lacquer resin; c) 2.0 to 25 wt. % of at least one polyisocyanate having more than one free isocyanate group; d) 10.0 to 65 wt. % of water; e) 0.5 to 30 wt. % of plasticiser; f) 0.0 to 20 wt. % of emulsifier; and g) 0.0 to 45 wt. % of at least one organic solvent. The sum of components a) to g) of the composition is 100 wt. %, and the weight ratio of hydroxyl groups of the hydroxyl group-containing lacquer resin b) to NCO groups of the polyisocyanate c) is 1:0.05 to 1:5. Also described is a method of using the coating agent emulsion, and its application to the surface of materials, such as wood and metal.