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:
Aug. 18, 2020
Filed:
Apr. 17, 2017
Valspar Sourcing, Inc., Minneapolis, MN (US);
Valspar Sourcing, Inc., Minneapolis, MN (US);
Abstract
The present disclosure is directed to a two-component polyurethane topcoat, comprising: a) a film-forming resin composition comprising i) an active hydrogen-containing polymer, having a hydroxyl value of 70 mg KOH/g polymer or more; ii) a polyester resin, having a hydroxyl value of less than 50 mg KOH/g resin and a viscosity of less than 6000 mPa·s at 25° C.; and iii) a package of flatting agents comprising a polysiloxane containing an effective silicon content of 30 wt % or more and an acrylics polymer having a weight average molecular weight in the range of 6,000 to 20,000 g/mol, wherein the weight ratio of the polysiloxane to the acrylics polymer is in the range of 1:5 to 1:15; and b) a polyisocyanate curing agent, wherein the ratio by weight of the component a) to the component b) is in the range of 100:10 to 100:25.