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:
Sep. 17, 1991
Filed:
Dec. 22, 1986
Applicant:
Inventors:
Assignee:
Firma Carl Freudenberg, Weinheim/Bergstr., DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
156252 ; 156256 ; 428138 ;
Abstract
A method of manufacturing a floor covering presses a bottom layer of a polymeric material into apertures in a top layer having a higher pressure-flow viscosity than the bottom layer. The pressure also joins the layers into the floor covering and forms a continuous pressure-vulcanization skin on the top thereof for more uniform soiling and wear characteristics. Selecting the size and arrangement of the apertures in the top layer produces a corresponding pattern of the bottom-layer material in the top of the joined layers which is independent of any surface configuration also imparted in the pressing.