Calgon Corporation

Ronald J Falcione

Wood E Hunter

David L Elliott

W Eugene Hunter

Michael M Carpenter

Ronald R McManis

Joseph A Aufman

A method for flocculating suspended solids from an aqueous system containing water and said suspended solids comprising adding to said aqueous system an effective amount of a flocculating agent, wherein said flocculating agent is a pourable non-aqueous, polymer composition containing less than about 5%, water and greater than 60%, polymer solids. The polymer of the instant polymer compositions may be anionic, non-ionic, cationic or amphoteric. Related compositions are also claimed.

Method for using novel high solids polymer compositions as flocculation

A composition comprising aqueous cellulosic furnish, a high molecular weight cationic polymer, and a modified lignin wherein the ratio of the cationic polymer to the modified lignin is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making paper or paperboard having improved drainage, retention and formation properties is also provided.

Cellulosic, modified lignin and cationic polymer composition and process

A composition comprising an aqueous cellulosic furnish, a high molecular weight cationic polymer, and an anionic polymer comprising a modified lignin wherein the ratio of the cationic polymer to the anionic polymer is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making paper or paperboard having improved drainage, retention and formation properties is also provided.

A composition comprising an aqueous cellulosic furnish, a high molecular weight cationic polymer, and a modified lignin wherein the ratio of the cationic polymer to the modified lignin is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making paper or paperboard having improved drainage, retention and formation properties is also provided.

Cellulosic modified lignin and cationic polymer composition and process

A method of improving the retention of starch in papermaking using blends of high and low molecular weight acrylic acid/acrylamide copolymers.

Hydrolyzed polyacrylamide blends as starch retention aids

Use of polyacrylates to reduce slurry viscosity and permit utilization of higher solids slurries of magnesium oxide.

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Canonsburg, PA, United States of America

Ronald J Falcione