Paper strength improving additives, their manufacture and use in paper making
AssigneeKemira Oyj
InventorsChen LU, Jenna RABIDEAU
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Abstract
The present invention relates to a polymer composition comprising an anionic polymer composite having a synthesized polymer portion and a polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of the polysaccharide. The present invention further relates to a strength system and methods of production and use in providing a paper product.
Claims20
A polymer composition comprising an anionic polymer composite having a synthesized polymer portion and an anionic polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of an anionic polysaccharide.
A method of manufacturing a polymer composition comprising the steps of:
- (a) providing vinyl monomers and an anionic polysaccharide;
- (b) providing an aqueous mixture of said vinyl monomers and anionic polysaccharide;
- (c) providing an initiator system to the mixture and allowing the vinyl monomers to undergo polymerization to obtain the polymer composition, which comprises an anionic polymer composite having a synthesized polymer portion and an anionic polysaccharide portion.
Dependencies are inferred from the claim text.