Cytec Technology Corporation

American Cyanamid Company

Bayer Corporation

American Cyanamid

Gerald J Guerro

David L Dauplaise

Balwant Singh

Rajiv Bazaj

William A Henderson, Jr

Robert J Proverb

Robert F Tarvin

William Arthur

Leigh Ann Lawrence

Nicole Richards

Wendy L DiNicola

Gregory G Borsinger

A paper or board is coated with a composition comprising from 30-95 parts by weight of a synthetic, carboxylated surface size containing at least about 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene/acrylic acid copolymer, and from 5-70 parts by weight of a substantially hydrophilic polyacrylamide such as a cationic or anionic polyacrylamide.

Paper or board with surface of carboxylated surface size and polyacrylamide

Papermaking processes are provided which utilize mixtures of wet strength agents and dry strength agents in amounts that provide paper formed therefrom with decreased wet strength, and hence increase repulpability, without unduly compromising dry strength. Stable compositions comprised of mixtures of wet strength agents and dry strength agents, are also provided which may be advantageously used in said processes.

Papermaking methods and compositions

A composition useful in paper and board making comprises a carboxylated surface size containing at least 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene-(meth)acrylic aicd copolymers or styrene-maleic acid (anhydride or salt) copolymers, a hydrophilic polyacrylamide and a crosslinking agent such as glyoxylated vinylamide polymers, formaldehyde, melamine-formaldehyde condensates and glyoxyl-extended materials.

Paper or board treating composition of carboxylated surface size, polyacrylamide and crosslinker

A composition used in paper and board making comprises a carboxylated surface size containing at least 40 mole percent of hydrophobic groups such as styrene/(meth)acrylic acid copolymers or styrene/maleic acid (anhydride or salt) copolymers, and a hydophilic polyacrylamide.

Paper or board treating composition of carboxylated surface size and

Compositions containing hydrophilic polyacrylamide and hydrophobic surface size agents and the methods for using such compositions in paper and board to improve printability, sizing and strength are provided in the instant invention.

Methods and agents for improving paper printability and strength

Compositions comprising polyamine and melamine polymers in certain ratios are provided for coagulating suspended solids in wastewaters such as deinking process waters and raw waters.

Compositions comprising polyamine and melaminealdehyde

Compositions comprising a blend of (1) an ionic, water-soluble, vinylamide polymer containing sufficient vinylamide and --CHOHCHO substituents to be thermosetting and a ratio of glyoxal substituents to glyoxal-reactive substituents in excess of about 0.02:1.0 and (2) a glyoxalated, cationic, water-soluble vinylamide polymer having a molecular weight of about 500 to about 6000, sufficient glyoxal-reactive and glyoxal substituents to be thermosetting and a ratio of glyoxal substituents to vinylamide substituents being in an excess of about 0.1:1.0, are disclosed.

Temporary wet strength resins

Methods of coagulating and decolorizing waste streams

The binder composition of this invention contains a beta-hydroxy urethane functional material and a polycarboxylic acid. Coated glass fibers are prepared by contacting said fibers with the binder composition of the invention and thereafter curing the composition. This invention is also an improved method of treating glass fibers by contacting them with the improved binder composition of the invention.

Water soluble binder compositions containing beta-hydroxy urethanes and

In the phenolic bond used for making abrasive tools such as grinding wheels and the like, the addition of certain alkyl or hydroxyalkylcarbamylmethyl triazines improves wet strength properties of the tools.

Bond for abrasive tools

A method for the production of improved bonded particulate articles, and the articles so produced, are disclosed. Specifically, the manufacture of particulate articles having a reduced tendency to undergo humidity-induced sag is disclosed. These articles have utility in such application as ceiling tiles.

Method of manufacturing a sag-resistant bonded particulate article

The rate of set of an aqueous slurry of hydraulic cement can be retarded by means of an additive comprising a water-soluble polymer which contains hydroxamic acid pendant groups. Hydroxamated acrylamide polymers and copolymers are preferred additives for retarding set in cement slurries.

Hydroxamated polymers as additives for retarding the rate of set of

A cationic, water-soluble acrylamide polymer containing an acrylamide, a cationic comonomer and, optionally, a second comonomer and having sufficient glyoxal-reactive amide substituents and --CH.sub.O HCHO substituents to be thermosetting, the polymer, before glyoxylation, having a molecular weight ranging from about 500 to about 6000, a process for imparting temporary wet strength to paper and the paper per se, are disclosed.

Growing community of inventors

Trumbull, CT, United States of America

Gerald J Guerro