Patent Number: 6,281,289

Title: Polypropylene/ethylene polymer fiber having improved bond performance and composition for making the same

Abstract: The subject invention is directed to fibers and polymer blend compositions having improved bonding performance. In particular, the subject invention pertains to a multiconstituent fiber comprising a blend of a polypropylene polymer and a high molecular weight (i.e. low melt index or melt flow) ethylene polymer. The subject invention further pertains to the use of the fiber and polymer blend composition which has improved bonding performance in various end-use applications, especially woven and nonwoven fabrics such as, for example, disposable incontinence garments and diapers. The fibers have good spinnability and provide fabrics having improved bond strength and elongation.

Inventors: Maugans; Rexford A. (Lake Jackson, TX), Knickerbocker; Edward N. (Lake Jackson, TX), Stewart; Kenneth B. (Lake Jackson, TX)

Assignee: The Dow Chemical Company

International Classification: C08L 23/00 (20060101); C08L 23/10 (20060101); D01F 6/46 (20060101); C08L 23/08 (20060101); C08F 008/00 (); C08L 023/00 (); C08L 023/04 ()

Expiration Date: 08/28/2018