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:
Oct. 28, 1980
Filed:
Aug. 09, 1978
Applicant:
Inventors:
William J Kauffman, Lancaster, PA (US);
George L Lilley, Manheim, PA (US);
Assignee:
Armstrong Cork Company, Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428159 ; 156 78 ; 156 79 ; 156220 ; 156272 ; 156277 ; 264 451 ; 264 51 ; 264 52 ; 264 53 ; 264 55 ; 264132 ; 264230 ; 264D / ; 427 35 ; 427 431 ; 427 44 ; 427 541 ; 427261 ; 427264 ; 427271 ; 427277 ; 427340 ; 427373 ; 2041592 ;
Abstract
A process of forming an embossed surface covering is disclosed. The process comprises forming a cross-linkable foam comprising at least one polymer and having a first phase region and a second phase region; heat the foam to a temperature at least equal to the flow temperature of the first phase region; compressing the heated foam and cooling the foam while compressed; cross-linking a portion of the compressed foam; and reheating the compressed foam to permit the noncross-linked portion of the foam to return or 'pop back' to substantially its precompressed shape and thus form an embossed surface covering.