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:
Oct. 10, 2006
Filed:
May. 31, 2001
Mary Lucille Delucia, Roswell, GA (US);
Sandy Chi-ching Tan, Roswell, GA (US);
Eugenio Go Varona, Marietta, GA (US);
Jessica B. King, Roswell, GA (US);
Mary Lucille DeLucia, Roswell, GA (US);
Sandy Chi-Ching Tan, Roswell, GA (US);
Eugenio Go Varona, Marietta, GA (US);
Jessica B. King, Roswell, GA (US);
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A method for producing an apertured structured material for accommodating passage of fluids, particularly high viscosity fluids, through the apertured structured material. In one embodiment, the apertured structured material is a composite material formed by differential shrinkage of a shrinkable second layer, for example an ethylene-propylene copolymer, which is laminated to a first layer, for example a polypropylene polymer. During the differential shrinkage process, a plurality of slits which are formed in the second layer open to form uniformly-shaped apertures. In another embodiment, an apertured structured heterogenous material is made of a heterogeneous mixture of at least two homogeneous fiber sets or components having different shrinkage extents.