Nalco Chemical Company

Nalco Company

Ondeo Nalco Company

Chidambaram Maltesh

Jane B Wong Shing

John R Hurlock

Ananthasubramanian Sivakumar

Wesley Lamar Whipple

Cathy C Johnson

Angela P Zagala

Ramasubramanyam Nagarajan

Tracey M Guddendorf

Elise E Maury

This invention is directed to structurally-modified water-soluble polymers prepared by initiating polymerization of an aqueous solution of monomers under free radical polymerization conditions to form a polymer solution and adding at least one structural modifier to the polymer solution after at least 30% polymerization of the monomers has occurred, and to use of the water-soluble cross-linked polymers as flocculating agents.

Structurally-modified polymer flocculants

This invention is directed to a method of increasing retention and drainage in a papermaking furnish comprising adding to the furnish an effective flocculating amount of a high molecular weight water-soluble anionic or nonionic dispersion polymer.

Method of increasing retention and drainage in papermaking using high molecular weight water-soluble anionic or nonionic dispersion polymers

Method of increasing retention and drainage in papermaking using high molecular weight water-soluble anionic or monionic dispersion polymers

Use of diallyldimethylammonium chloride acrylamide dispersion copolymer in a papermaking process

This invention is directed to a method of clarifying and dewatering industrial waste water using anionic and nonionic dispersion polymers.

Anionic and nonionic dispersion polymers for clarification and dewatering

A method for improving retention and drainage performance in a papermaking process is disclosed. The method comprises forming an aqueous cellulosic papermaking slurry, adding an effective amount of a hydrophilic dispersion polymer to the slurry, draining the slurry to form a sheet and drying the sheet. The hydrophilic dispersion polymer is preferably a copolymer of diallyldimethyl ammonium chloride and acrylamide.

Papermaking process utilizing hydrophilic dispersion polymers of

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Naperville, IL, United States of America

Chidambaram Maltesh