Method of making uniform spunbond filament nonwoven webs

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12037713
APP PUB NO 20220307175A1
SERIAL NO

17291452

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of making nonwoven webs comprising providing a spinneret wherein the spinneret includes a pattern of conduits, the pattern of conduits forming an extrusion region; directing only a first stream of molten propylene polymer having a first temperature into a region adjacent of the first side of the spinneret, directing only a second stream of molten propylene polymer having a second temperature into a region distal to the first side of the spinneret, extruding only the first stream of molten propylene polymer through the exit openings in a first zone; extruding only the second stream of molten propylene polymer through the exit openings of a second zone; the second zone is distal to the first side with the first zone being between the second zone and the first side.

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Patent Owner(s)

  • KIMBERLY CLARK WORLDWIDE INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bouchard, Isabelle R Maplewood, US 5 1
Conrad, John H Alpharetta, US 18 170
Lake, Matthew B Cumming, US 7 81
Lennon, Eric E Roswell, US 14 26

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