Method of making uniform spunbond filament nonwoven webs

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12188158
APP PUB NO 20230033920A1
SERIAL NO

17791516

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of making nonwoven webs comprising providing a spinneret including a pattern of conduits forming an extrusion region; directing only a first stream of molten propylene polymer into a region adjacent the first side of the spinneret, directing only a second stream of molten propylene polymer into a region distal to the first side of the spinneret, extruding only the first stream propylene polymer through the exit openings in a first zone where the exit opening comprises exit ports in the first zone having a first density; extruding only the second stream propylene polymer through the exit openings of a second zone where the exit opening comprises exit ports in the second zone having a second density less than the first density; and 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)

Patent OwnerAddress
KIMBERLY-CLARK WORLDWIDE INC2300 WINCHESTER ROAD NEENAH WI 54956

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barnes, Craig A Cumming, US 6 4
Haynes, Bryan D Jasper, US 37 530
Honarbakhsh, Sara Alpharetta, US 6 13
Lennon, Eric E Roswell, US 14 26
Palzewicz, David A Canton, US 9 61

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