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:
Mar. 28, 2006
Filed:
Jun. 18, 2004
Rainer Schoenfeld, Duesseldorf, DE;
Corina Bisog, Franklin, WI (US);
David Sturgill, Brookfield, WI (US);
Kazuhiko Sato, Franklin, WI (US);
Rainer Schoenfeld, Duesseldorf, DE;
Corina Bisog, Franklin, WI (US);
David Sturgill, Brookfield, WI (US);
Kazuhiko Sato, Franklin, WI (US);
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Abstract
Blocked polyurethane prepolymers obtained by reacting at least one polyol, a first polyisocyanate comprising diphenylmethane diisocyanate, a second polyisocyanate having a viscosity at 25° C. of less than about 250 mPa·s, a phenol blocking agent, and an oxime blocking agent, wherein the weight ratio of second polyisocyanate:first polyisocyanate is not more than 0.65:1. The blocked polyurethane prepolymers are especially useful in formulating coating compositions additionally comprising at least one acrylic resin, at least one plasticizer, at least one filler, and optionally other ingredients and additives. A cured coating is obtained by applying a layer of the coating composition to a substrate surface and heating the coating composition layer.