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:
Jul. 13, 2004
Filed:
Dec. 19, 2001
Applicant:
Inventors:
Michael D. Powers, Canton, GA (US);
Steven W. Fitting, Acworth, GA (US);
Assignee:
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 2/702 ; B32B 2/704 ; B32B 5/26 ; D04H 1/56 ; D04H 3/16 ;
U.S. Cl.
CPC ...
B32B 2/702 ; B32B 2/704 ; B32B 5/26 ; D04H 1/56 ; D04H 3/16 ;
Abstract
Nonwoven webs with good barrier properties are disclosed. The nonwoven webs can be, for instance, meltspun webs such as meltblown webs and spunbonded webs. In accordance with the present invention, a hydrophobic agent is incorporated into the polymer that is used to produce the web for improving the barrier properties of the web. Hydrophobic agents that may be used in accordance with the present invention include polydimethyl siloxanes and guerbet esters.