Olin Corporation

Douglas A Farmer, Jr

Rahim Hani

Craig Waldron

Ellwood L Lines, Jr

John A Wojtowicz

Samuel I Trotz

Lawrence E Katz

David F Gavin

Charles E Branch

Philip M Pivawer

The present invention relates generally to paint and paint base and, more specifically, to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide in paint. In accordance with the process of the present invention, the paint or paint base contains a carboxylic acid in order to impart desired gelation inhibition to the paint.

Gel-free paint containing zinc pyrithione cuprous oxide and carboxylic

The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base contains an amine treated wood rosin in order to impart desired gelation-inhibition to the paint.

Gel-free paint containing zinc pyrithione, cuprous oxide, and amine

The present invention relates generally to paints and paint bases, and, more specifically to a process for providing a stable gel-free dispersion of biocidal amounts of 2,2'-dithiobis(pyridine-1-oxide) or its metal salt adducts of the formula (C.sub.5 H.sub.4 NOS).sub.2 MY.sub.t or their hydrates plus cuprous oxide biocide in paint, where M is an alkaline earth metal, Y is the anion of an organic or inorganic acid, and t is 1 or 2. The resulting paint is storage stable and remains gel-free after several months of storage at room temperature.

Gel-free paint containing cuprous oxide plus 2,2'-dithiobis

The present invention relates generally to paints and paint bases, and, more specifically to a process for providing in situ generation of copper pyrithione biocide in a paint or paint base which comprises incorporating a metal salt of pyrithione, cuprous oxide and a controlled amount of water into the paint or paint base either during or after formulation of the paint or paint base.

Process for generating copper pyrithione in-situ in a paint formulation

The present invention relates generally to paints and paint bases, and, more specifically to a process for providing in situ generation of copper pyrithione biocide in a paint or paint base which comprises incorporating a compound of pyrithione, cuprous oxide and a controlled amount of water into the paint or paint base either during or after formulation of the paint or paint base.

The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base is essentially water-free, and preferably contains a desiccant in order to impart desired gelation-inhibition to the paint.

Process for stabilizing zinc pyrithione plus cuprous oxide in paint

The present invention relates generally to paints and paint bases, and, more specifically to a process for providing a stable gel-free dispersion of copper pyrithione or pyrithione disulfide plus cuprous oxide biocide in paint. The resulting paint is storage stable and remains gel-free after several months of storage at room temperature.

Gel-free paint containing copper pyrithione or pyrithione disulfide plus

The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base contains a metal salt of wood rosin in order to impart desired gelation-inhibition to the paint.

The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base contains an amine compound or esterified wood rosin in order to impart desired gelation-inhibition to the paint.

The present invention relates generally to paints and paint bases, and, more specifically to a process for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the zinc pyrithione is purified to a purity assay of at least 98% in order to provide gellation-inhibition in the paint.

Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and preventing or reducing discoloration of sodium pyrithione solutions by treating said sodium pyrithione solutions (which are precursors to zinc pyrithione) with an effective amount of a selected reducing agent to prevent or reduce the discoloration, said reducing agent selected from the class consisting of alkali metal sulfites, alkali metal bisulfites, hydrazine, and mixtures thereof.

Process for the prevention or reduction of discoloration of sodium

Process for the prevention or reduction of discoloration of sodium or

A fire and heat resistant container having at least the sidewall partially formed from fibrous material with an inner surface and an outer surface that has a plurality of laminae of predetermined composition and thickness arrayed in a specific manner therebetween is provided to protect an object or substance adjacent the inner surface from a fire or heat generating source adjacent the outer surface. The laminae are bonded together by a fire resistant bonding agent of predetermined thickness.

Fire and heat resistant structure

Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and containing substantially no undesired 2-hydroxypyridine-N-oxide or metal salt complexes thereof, by

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Madison, CT, United States of America

Douglas A Farmer, Jr