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, 1994
Filed:
Aug. 02, 1991
Yvon Levesque, Montreal, CA;
Johnson & Johnson Inc., Montreal, CA;
Abstract
A composite absorbent structure capable of extremely short fluid penetration time, well-suited for use as an absorbent core in disposable absorbent products such as adult disposable briefs, diapers, incontinence pads, sanitary napkins, wound dressings and bandages. The composite absorbent structure comprises a highly absorbent fluid transfer sheet having a low fluid retentiveness, and a laminated, wicking reservoir with a high fluid retentiveness in intimate fluid communication with the fluid transfer sheet to draw fluid therefrom under the effect of capillary action. The laminated reservoir includes superposed layers, the layer closest to the fluid transfer sheet being provided with a fluid distribution well. A highly porous and hydrophilic spacer element is inserted between the reservoir layers establishing a high void volume area which forms an extension of the fluid absorptive well between the reservoir layers. The invention also comprehends a method for providing a rapid fluid absorption in a disposable absorbent product.