Strength agent, its use and method for increasing strength properties of paper

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United States of America Patent

PATENT NO 10273634
APP PUB NO 20170268176A1
SERIAL NO

15505086

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a strength agent for paper, board or the like. The strength agent comprises a first component, which is refined cellulosic fibers having a refining level of >70° SR, and a second component, which is a synthetic cationic polymer having a charge density of 0.1-2.5 meq/g, determined at pH 2.7, and an average molecular weight of >300 000 g/mol. The invention relates also to a use of the strength agent and to a method for increasing strength properties of paper, board or the like.

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Patent Owner(s)

  • KEMIRA OYJ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hietaniemi, Matti Espoo, FI 46 155
Koskimäki, Asko Helsinki, FI 2 32
Lillandt, Marcus Ingå, FI 4 44
Vanhatalo, Kari Espoo, FI 11 47

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