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. 05, 1978
Filed:
Apr. 04, 1977
Applicant:
Inventors:
George A Butterworth, Western Springs, IL (US);
Frank Fillwalk, Oak Lawn, IL (US);
Assignee:
Johnson & Johnson, New Brunswick, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; D21H / ;
U.S. Cl.
CPC ...
4273 / ; 34 41 ; 128284 ; 128285 ; 128287 ; 1282 / ; 1282 / ; 156305 ; 427392 ; 427391 ;
Abstract
A method is provided for increasing the water-repellency of a normally water-wettable, bonded, non-woven fabric bearing a surfactant selected from the group consisting of non-ionic surfactants and anionic surfactants. The method comprises heating a selected region of the fabric to an elevated temperature at which the surfactant is unstable, and maintaining the region at the elevated temperature for a time period sufficient to denature the surfactant without damaging the fabric.