Nonwoven fabric from polymers containing particular types of copolymers and having an aesthetically pleasing hand

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5652051
SERIAL NO

08395218

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There is disclosed fibers and fabrics formed from a polymer which is a 'hand enhancing' polymer. The 'hand enhancing' polymer is a copolymer of polypropylene which contains ethylene, 1-butene, or 1-hexene or a terpolymer of propylene, ethylene and butene. If the polymer is an ethylene copolymer, the copolymer may be random or random and block and the ethylene must be present in an amount between greater than 5 and 7.5 weight percent of the copolymer. If the copolymer contains 1-butene, it must be present in an amount between 1 and 15.4 weight percent of the copolymer. If the copolymer contains 1-hexene, it must be present in an amount between 2 and 5 weight percent of the copolymer. If the polymer is a terpolymer of propylene, ethylene and butylene, the polypropylene is present in an amount between 90 and 98 weight percent, the ethylene is present in an amount between 1 and 6 weight percent and the butylene is present in an amount between 1 and 6 weight percent. The fibers may additionally have a second polymer adjacent the first polymer in a sheath/core, islands-in-the-sea or side-by-side conjugate orientation.

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Patent Owner(s)

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

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Connor, Linda Ann Roswell, GA 4 179
Estey, Paul Windsor Cumming, GA 15 824
Shawver, Susan Elaine Roswell, GA 31 1209

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