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:
Jun. 29, 1999
Filed:
Nov. 07, 1994
Applicant:
Inventors:
Shmuel Dabi, Highland Park, NJ (US);
Kays Chinai, Burlington, NJ (US);
Assignee:
McNeil-PPc, Inc., Skillman, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; D04H / ; D04H / ; D04H / ;
U.S. Cl.
CPC ...
264113 ; 156 622 ; 156 628 ; 264119 ; 264122 ; 264126 ;
Abstract
A method of constructing multi-layer products for absorbing fluids is disclosed. In the methods of the present invention, two or more layers of materials chosen to vary in recovery are compressed such that an absorption gradient forms through the continuous intimately associated layers. A first layer preferably remains densified while a second layer 'blooms' to form an open, absorptive layer, which acts as a reservoir, drawing absorbed fluids into the densified layer, where they are retained.