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. 22, 1983
Filed:
Dec. 28, 1981
Applicant:
Inventors:
Wayne K Erickson, Seneca, SC (US);
Lewis R Mulligan, Seneca, SC (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428286 ; 28107 ; 28111 ; 28240 ; 156148 ; 428284 ; 428296 ; 428297 ; 428298 ; 428299 ; 428300 ; 428303 ;
Abstract
A multi-layer nonwoven fabric is provided comprising at least one layer of waste fibers positioned between layers of virgin synthetic fibers joined by, for example, needle punching. A process for producing the fabric comprises the steps of forming a base web of virgin staple fibers, adding a second web of waste fibers, adding a top web of virgin staple fibers, and consolidating the webs as by needle punching to form a composite fabric.