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. 08, 1991
Filed:
Jan. 12, 1989
Applicant:
Inventor:
Jack H Witman, Lancaster, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428483 ; 428518 ; 428524 ; 4289088 ; 525 5421 ;
Abstract
An outermost wear layer comprising cellulose acetate propionate or butyrate, aminoplast, polyol, acid catalyst and chlorinated polyolefin releases readily from a release layer to provide improved stain and scratch resistance for vinyl surface coverings.