Ondeo Nalco Company

Nalco Chemical Company

Martin J Coffey

Steven John Severtson

Phillip W Carter

Patrick G Murray

Ross Gray

Arthur James Begala

Steven T Govoni

Sameer B Agarwal

This invention is directed to high molecular weight water-soluble polymers comprised of zwitterionic, nonionic and cationic or anionic monomer units, and to the use of these polymers in papermaking processes.

High molecular weight cationic and anionic polymers comprising zwitterionic monomers

Contaminant dispersants useful in recycling of treated containers

A method of dispersing hydrophobic particles in aqueous suspensions comprising adding to the suspension an effective amount of an ethylene oxide-propylene oxide block copolymer, wherein the copolymer has a molecular weight of from about 1,000 to about 50,000 and a HLB of from about 1 to about 4 and compositions comprising the ethylene oxide-propylene oxide block copolymer.

Method and composition for dispersing hydrophobic particles in aqueous suspensions

Methods for controlling wax and other contaminants by improving the dispersion of these materials through the addition of treatment agents such as plasticizers, dispersants or wetting agents to the process of recycling paper and paperboard are disclosed. Preferred treatment agents include polymeric wetting agents, dispersants, plasticizers and combinations thereof.

Use of additives to breakdown and stabilize wax during fiber recycle

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Wheaton, IL, United States of America

Martin J Coffey