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:
Nov. 05, 2002
Filed:
Nov. 12, 1998
Applicant:
Inventors:
Tryggvi Magnusson, Wausau, WI (US);
Guenther Pollak, Wausau, WI (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 2/738 ; B32B 2/700 ; B32B 2/109 ; B32B 9/00 ;
U.S. Cl.
CPC ...
B32B 2/738 ; B32B 2/700 ; B32B 2/109 ; B32B 9/00 ;
Abstract
A multi-layered protective finish for use on hardwood surfaces includes ceramic additives in selected layers. The finish is comprised of multiple sealant layers (preferably epoxy) and top coat layers (preferably polyurethane), some of which contain ceramic components, namely, aluminum oxide and zirconium oxide. The multi-layered, ceramic-based finish exhibits enhanced abrasion and stain resistance. The required concentrations of zirconium oxide provide enhanced hardness without sufficiently compromising flexibility which is important to maintain integrity of the finish.