Nalco Company

Cathy C Doucette

Manian Ramesh

Kin-Tai Chang

Jeffery Atkins

Jane B Wong Shing

Andrew J Cooper

Joseph Paul Street

Angela P Zagala

Alessandra Gerli

Xavier S Cardoso

Przem Pruszynski

Jeffery M Atkins

An antimicrobial composition prepared by mixing a polymer-ammonium salt formulation comprising one or more polymers and one or more ammonium salts with alkali and a chlorine source in a molar ratio of chlorine (as Cl) to ammonium ion of about 1:10 to about 10:1 and methods of using the composition to control biofouling of aqueous systems.

Antimicrobial composition

The present disclosure is directed to compositions and methods for enhanced oil recovery, for modifying the permeability of subterranean formations and for increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations. The compositions may include, for example, expandable cross-linked polymeric microparticles having unexpanded volume average particle size diameters of from about 0.05 to about 5,000 microns and cross linking agent contents of from about 100 to about 200,000 ppm of labile cross linkers and from 0 to about 300 ppm of non-labile cross linkers that may be used in combination with other components such as, for example, a second and different polymeric microparticle, a viscosified aqueous solution, a subterranean reservoir treatment, or combinations thereof.

Compositions comprising at least two different polymeric microparticles and methods for recovering hydrocarbon fluids from a subterranean reservoir

A method of preparing a modified diallyl-N,N-disubstituted ammonium halide polymer and use of the polymer in combination with one or more high molecular weight, water soluble cationic, anionic, nonionic, zwitterionic or amphoteric polymers for increasing retention and drainage in a papermaking furnish.

Method of preparing modified diallyl-N,N-disubstituted ammonium halide polymers

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Sugar Grove, IL, United States of America

Cathy C Doucette