Patent Number: 6,169,045

Title: Nonwoven filter media

Abstract: There is provided in accordance with the present invention a lofty filter medium for filtering fluid-borne particles, which comprises a nonwoven fiber web of crimped fibers selected from the group consisting of spunbond fibers and staple fibers, wherein the filter medium has a density between about 0.005 g/cm.sup.3 and about 0.1 g/cm.sup.3. The lofty filter medium is highly suitable for fluid-borne particle filtration applications, such as filtration media for transmission fluids, hydraulic fluids, swimming pool water, coolant oil or cutting fluid for metalworking, metal forming and metal rolling, air-borne particle filtration and the like.

Inventors: Pike; Richard Daniel (Norcross, GA), Lassig; John Joseph (Lawrenceville, GA), Shipp, Jr.; Peter Wyndham (Woodstock, GA), Williams; Barbara Jean (Powder Springs, GA)

Assignee: Kimberly-Clark Worldwide, Inc.

International Classification: B01D 39/16 (20060101); D01F 8/12 (20060101); D01F 8/06 (20060101); D01F 8/14 (20060101); D04H 3/16 (20060101); D04H 001/00 ()

Expiration Date: 01/02/2018