Modified cellulose-based natural binder for nonwoven fabrics

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12168842
APP PUB NO 20210054548A1
SERIAL NO

16963586

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Abstract

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Aqueous cellulosic binder comprising modified cellulose (carboxymethylcellulose and/or sodium carboxymethylcellulose), water, and optionally binder modifier (crosslinking agent and/or wet strength agent); with a weight ratio of water modified cellulose of 99.9:0.1 to 1,000:500, with a weight ratio of binder modifier:modified cellulose of 1:2 to 1:1,000; wherein crosslinking agent comprises carboxylic acid having two or more carboxyl groups; and wherein wet strength agent comprises a reactive functional group (halide, chloride, fluoride, hydroxyl). A method of making aqueous cellulosic binder comprising contacting modified cellulose with water to form modified cellulose solution; and optionally contacting modified cellulose solution with binder modifier to form aqueous cellulosic binder. A nonwoven fabric comprising fiber web (85-99.9 wt. %); and cured cellulosic binder (0.1-15 wt. %). An article formed from the nonwoven fabric. A method of making nonwoven fabric comprising forming fiber web; contacting web with aqueous cellulosic binder to form binder impregnated fiber web; and curing to form the nonwoven fabric.

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Patent Owner(s)

Patent OwnerAddress
GLATFELTER CORPORATION4350 CONGRESS STREET SUITE 600 CHARLOTTE NC 28209

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kistemaker, Timothy Mooresville, US 3 4
Lemere, Mark A Hobart, US 1 2
Salam, Abdus Harrisburg, US 9 23
Stallsmith, Kirk Denver, US 1 2

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