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:
Mar. 21, 2006
Filed:
Jan. 16, 2002
Charles Eric Pearce, Charlotte, NC (US);
Sergio DE Leon, Clayton, NC (US);
Michael Putnam, Fuquay-Varina, NC (US);
Cheryl Carlson, Willow Springs, NC (US);
Ping Hao, Charlotte, NC (US);
Charles Eric Pearce, Charlotte, NC (US);
Sergio de Leon, Clayton, NC (US);
Michael Putnam, Fuquay-Varina, NC (US);
Cheryl Carlson, Willow Springs, NC (US);
Ping Hao, Charlotte, NC (US);
Polymer Group, Inc., North Charleston, SC (US);
Abstract
A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3%, preferably less than about 2%. The filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross-direction tensile strength of at least about 110 lb/in.