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US 10,378,154 B2Granted
Composition for use as a paper strength agent
AssigneeKemira Oyj
InventorsYuping Luo, Jiang Li, Thomas J. Lynch, Jenna Sue Rabideau, Scott Rosencrance
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Abstract
The present disclosure relates to a method and composition for increasing wet and/or dry strength of a paper product. The method comprises adding a composition comprising at least one polymer having a molecular weight more than 0.5 million Dalton and a degradation agent to a pulp suspension, and forming said paper product.
Claims21
A method for increasing dry and/or wet strength of a paper product, comprising:
- adding a composition comprising at least one polymer having a molecular weight more than 0.5 million Dalton and a degradation agent to a pulp suspension, and
- forming said paper product.
A composition in a form of a dry premixed blend for increasing wet and/or dry strength of a paper product, comprising:
- polyacrylamide having a molecular weight of more than 1 million Dalton in a form of a dry powder;
- and
- a degradation agent in a form of a dry powder.
Dependencies are inferred from the claim text.