Chargeable core/sheath-structured fiber, nonwoven fabric obtained from said fiber, composite nonwoven fabric, nonwoven fabric processed article, and method for producing nonwoven fabric processed article

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United States of America Patent

PATENT NO 11795584
APP PUB NO 20230122322A1
SERIAL NO

17915053

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Abstract

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The present invention provides a chargeable sheath/core-structured fiber that contains a polypropylene-based resin as a main resin, wherein the sheath part contains (a) a carboxylic anhydride-modified polyolefin and (b) at least one antioxidant selected from the group consisting of a combined antioxidant a phenolic antioxidant and a phosphorus-based antioxidant, and sulfur-based antioxidants; and (c) an oil containing a polyoxyalkylene alkyl ether represented by the general formula (I) as a finishing oil is deposited on the outer surface of the sheath part, and that can satisfy heat resistance and charge retainability. (In the formula, R1 represents a saturated or unsaturated aliphatic hydrocarbon group having 10 to 30 carbon atoms; R2 represents a hydrogen atom or a methyl group; and k is an integer of 1 to 4.)

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Patent Owner(s)

Patent OwnerAddress
UBE EXSYMO CO LTDALL OF CENTRAL JAPAN JAPAN TOKYO BRIDGE NO 19 TOWN 9 TIME FUZE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endou, Kouki Koriyama, JP 3 0
Tsukahara, Tatsunori Koriyama, JP 3 0

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