National Starch and Chemical Investment Holding Corporation

Akzo Nobel N.v.

Alvie L Foster, Jr

Ivonne C Weidner

Klein A Rodrigues

Allen M Carrier

James C Long

Maurice R Smith

Michael Lee Standish

Eric C Ward

Bick Hicks

Alternative inhibitors that offer an improvement over tolyltriazole in inhibiting yellow metal corrosion. The dithiocarbamate compounds and their salts were compared to that of tolyltriazole under identical conditions. These comparative tests were conducted in common corrosion testing systems, using both electrochemical corrosion cells and pilot cooling rigs, using various water conditions. The test methods included electrochemical studies such as linear polarization resistance, open circuit potential versus time, Tafel and cyclic polarization.

Sulfur based corrosion inhibitors

The present invention relates to novel catalysts for use with a fiberglass non-woven binder. The catalyst can be a Lewis acid, an organic acid salt, a free-radical generator, or a mixture thereof. The catalyst provides stronger bonding, increased crosslinking density, reduced curing times, and reduced curing temperatures. Fiberglass mats made with polymer binder compositions containing the catalyst exhibit both flexibility and elasticity, allowing the mats to be compressed for storage, yet return to original thickness once the compressive forces are removed. Formaldehyde-free wood composites, such as plywood and fiberboard, may also be produced with polymer binder compositions containing the catalyst.

Fiberglass non-woven catalyst

The present invention is directed to a solid chelating resin consisting of a reactive hydrophobic backbone having pendent carbodithioic groups. Preferably the resin is a poly(dithiocarbamate) containing no tertiary nitrogen groups. The invention is also directed to a novel process for making a chelating resin involving a) reacting a nucleophilic compound with carbon disulfide in a suitable solvent, to form a carbodithioic acid, b) neutralizing the carbodithioic acid with a base to form a carbodithioic acid salt; and c) reacting said carbodithioic acid salt with a crosslinking reagent in a suitable solvent to form a solid chelating resin. The chelating resin is useful in removing metals and cationic compounds from effluent streams.

Polydithiocarbamate resin

A laundry article effective for inhibiting transfer of extraneous dyes and soil to articles in a wash liquor, said laundry article comprising a support matrix and a functionalized polyamine attached to or entrapped in the support matrix. The functionalized polyamine comprises the reaction product of (A) a cyano- or guanidino-containing compound and (B) a polyamine prepared from at least one monomeric amine. The laundry article inhibits dye transfer, soil redeposition, and provides color protection to fabrics in a wash liquor. In addition, the laundry article does not interfere with the removal of stains from fabrics washed in the presence of the laundry article. Furthermore, the laundry article containing the functionalized polyamines are economical and environmentally safe.

Laundry article which attracts soil and dyes

A functionalized polyamine comprising the reaction product of (A) a cyano- or guanidino-containing compound selected from the group consisting of cyanamides or salts thereof, dicyanamides or salts thereof, dicyandiamides or salts thereof, guanidines or salts thereof, biguanidines or salts thereof, and combinations thereof, and (B) a polyamine prepared from at least one monomeric amine, wherein the cyano- or guanidino-functional groups are attached to the polyamine or incorporated therein to form the functionalized polyamine, provided that the monomeric amine and the cyano- or guanidino-containing compound are present in the functionalized polyamine in a molar ratio of from 1.1:1 to 100:1, respectively. The functionalized polyamines are especially useful as anti-dye transfer and color protection agents in laundry detergent compositions.

Growing community of inventors

Chattanooga, TN, United States of America

Alvie L Foster, Jr