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:
Jun. 16, 1981
Filed:
Sep. 24, 1979
Walter L Harmer, Arden Hills, MN (US);
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Abstract
A tough, wear-resistant polyurethane coating composition particularly suited for providing a protective coating on an elastomeric flooring is provided by the moisture-cured reaction product of an organic isocyanate-terminated prepolymer produced by reacting a diol component comprising at least one diol having a weighted average molecular weight between about 500 and 1200 and two primary hydroxyl groups, sufficient diisocyanate compound having two terminal isocyanate groups and sufficient compatible catalyst to facilitate the cure of the prepolymer. The invention also includes a floor covering material having a traffic surface coated with the coating composition.