Nalco Chemical Company

Ondeo Nalco Company

Andrew J Dunham

Phillip W Carter

William J Ward

Patrick G Murray

Larry E Brammer, Jr

Anthony G Sommese

John W Sparapany

Cathy C Johnson

Kristine S Salmen

Andrei S Zelenev

This invention is directed to high molecular weight water-soluble zwitterionic polymers derived from zwitterionic and nonionic monomer units, and to the use of the polymers in papermaking processes.

High molecular weight zwitterionic polymers

This invention concerns a method of increasing retention and drainage in a papermaking furnish comprising adding to the furnish an effective amount of a structurally rigid polymeric coagulant and an effective flocculating amount of a flocculant and a microparticle.

Structurally rigid polymer coagulants as retention and drainage aids in papermaking

This invention concerns a method of increasing retention and drainage in a papermaking furnish comprising adding to the furnish an effective amount of a structurally rigid nonionic or anionic polymer.

Structurally rigid nonionic and anionic polymers as retention and drainage aids in papermaking

The invention provides novel cationic flocculant dispersion polymers that can be utilized in the methods disclosed herein. This invention also provides methods for detecting cationic flocculants wherein said flocculants may be made via a dispersion process, a latex process or a dry polymer process. The flocculants are used to flocculate solids from liquid components of an industrial food process. The detection method involves the use of monoclonal antibodies to determine the presence or concentration of the cationic flocculants in the liquids.

Detectable cationic flocculant and method of using same in industrial food processes

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DeKalb, IL, United States of America

Andrew J Dunham