Betz Laboratories, Inc.

Deborah L Purnell

David W Reichgott

Brenda S Morris

Wen P Liao

William L Harpel

Gene A Merrell

Richard J Pilny

Rachel Turoscy

Mitchell J Kassouf

Daniel W Yankovich, Jr

A non-chromate conversion coating for metal surfaces such as aluminum, steel, galvanized steel and zinc-aluminum steel consisting of an aqueous solution of a cationic polymer, an alkaline aqueous silicate and an organofunctional silane.

Composition and process for treating metal surfaces

A method of dewatering paint spray booth sludge by adding to the water system of a paint spray booth a water soluble graft copolymer having the structure: ##STR1## wherein E is the repeat unit obtained after polymerization of an, ethylenically unsaturated compound, the molar percentage of a:b is from about 95:5 to 5:95, with the proviso that the sum of a and b equals 100%; G comprises the structure: ##STR2## wherein d is a cationic monomer, R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or a lower alkyl group having C.sub.1 to C.sub.3, F is the salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%.

Water soluble graft copolymers for paint spray booth sludge dewatering

In a paint spray booth wherein water is used to collect oversprayed paint, a process for detackifying and coagulating the oversprayed paint by the addition of specific amounts of specific anions and cationic polymers blended prior to addition to the water system.

On-line blending method for activator catalyzed paint detackification

A method and composition for detackifying or coagulating and flocculating waterborne and solventborne paints with organofunctional silane compounds.

Organofunctional silane paint coagulants and detackifiers

One drum activator catalyzed paint detackification program

A process for the detackification and coagulation of oversprayed water-borne and mixed water-borne and oil based paint particles in the water collection system of a paint spray booth comprising adding a unitary blend of an inorganic anion and a cationic polymer selected from the group consisting of polydiallyl dimethyl ammonium chloride, a condensation product of dimethylamine plus epichlorohydrin and a condensation product of dimethylamine plus ethylene diamine plus epichlorohydrin.

Paint spray booth treatment program for water base and water base and

This invention relates to an improved method for treating paint wastes and paint oversprays encountered in wet paint spray booths or any areas where these wastes and oversprays exist.

Paint spray booth treatment

Paint spray booth detackifying and clarification compositions and methods are disclosed. The compositions are pumpable, hectorite clay containing slurries. In addition to hectorite, which has been proven as a most effective detackifying agent, the slurries include thinning agents such as water soluble aliphatic and/or alicyclic amines. Water conditioning agents, such as water soluble polyphosphates are also made part of the slurry formulation.

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Philadelphia, PA, United States of America

Deborah L Purnell