Calgon Corporation

Nancy S Sherwood

Nicholas J Alfano

Gary F Matz

Jasbir S Gill

Lawrence J Guilbault

Monica A Yorke

Christine A Costello

Ramon A Muia

Miklos Tamas Szabo

Charles J Schell

Synergistic antimicrobial combinations of polyether polyamino methylene phosphonates and one or more members selected from the group consisting essentially of the following non-oxidizing biocides:

Synergistic antimicrobial combination of polyether phosphonates and

Polyether polyamino methylene phosphonates, when added to various industrial water systems in concentrations between 0.1 mg/L and 50 mg/L, stabilize soluble zinc, manganese and iron ions and their reaction products, in desirable forms and reduced particle sizes. In particular, this stabilization can be achieved under severe conditions which include elevated pH, high dissolved solids content, and high saturation levels of calcium carbonate.

Zinc, iron and manganese stabilization using polyether polyamino

Compositions containing a water soluble carboxylic/sulfonic/polyoxyalkylene terpolymer and a water soluble phosphonate effectively control calcium carbonate scaling in aqueous systems under severe pH, alkalinity, calcite saturation and/or temperature conditions.

Method for controlling calcium carbonate scaling in high pH aqueous

The present invention is directed to a method of inhibiting the corrosion of copper and copper alloys in an aqueous system containing oxygen using an effective amount of a polymer prepared from:

Method of inhibiting the corrosion of copper and copper alloys

The instant invention is directed to a method of recovering oil and/or gas from a subterranean formation which is penetrated by a well bore, and for reducing the concomitant production of reservoir water therefrom comprising injecting into said formation through said well bore an aqueous treating solution or emulsion containing a polyampholyte prepared from:

Use of polyampholytes to enhance oil and/or gas recovery

Improved secondary and tertiary oil recovery process in which water-soluble, salt-insensitive, block polymers of the A-B-A type wherein the A block is derived from a water-soluble monomer and the B block is derived from N-vinyl pyrrolidone are used as viscosity control agents.

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Coraopolis, PA, United States of America

Nancy S Sherwood