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.

Date of Patent:
Dec. 31, 1996

Filed:

Nov. 26, 1991
Applicant:
Inventors:

Peter Maddern, Clwyd, GB;

Kenneth J Currie, Clwyd, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428286 ; 156 622 ; 156167 ; 156181 ; 156290 ; 428288 ; 428290 ; 428296 ;
Abstract

Nonwoven material comprising a web of spunbonded polymer filaments in combination with at least one other spunbond or meltblown nonwoven layer with the combination impregnated with a stabilizing agent and the spunbond layer having been hot calendered to improve surface abrasion resistance. Preferred embodiments using a coating bath also including a surfactant and smooth calendering.


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