The Valspar Corporation

Philip J Ruhoff

Larry B Brandenburger

Robert B Edenborg

Rodney W Stockstad

James A Prevost

Richard F Tomko

Lonnie S Jones

Jeffrey L Anderson

Gamini S Samaranayake

Base alkyd resins are modified to provided increased hydrolytic stability by reacting them with a polybasic acid composition containing one or more cycloaliphatic polybasic acids, the resulting modified alkyd having an acid number in the range of 25-100 and having pendent carboxy-functional monoester groups derived from the cycloaliphatic polybasic acids.

Hydrolysis resistant alkyl resin coating composition

A method is provided for producing a modified addition polymer from an ethylenically unsaturated monomer composition that includes at least one monomer having hydroxyl or carboxyl functionality. The ethylenically unsaturated monomer composition, and a free radical initiator therefor, is dissolved in a solvent-free molten composition maintained at an addition polymerization temperature, the molten composition comprising a cyclic compound reactive via ring-opening with the hydroxyl or carboxyl functionality. The resulting material is useful in the manufacture of paints in liquid or powder form.

Modified-acrylate polymers and coating compositions made therefrom

To improve chip resistance of an alkyd-type electro-depositable coating composition, there may be added to the composition an ethylenically unsaturated, addition-polymerizable monomer or oligomer having a substantially linear backbone, having a molecular weight of at least about 150, and being reactive with fatty acid unsaturation of the alkyd.

Cationic electrodeposition compositions for producing chip-resistant

An alkyd-type electrodepositable coating composition derived from the reaction of a base alkyd with ethylenically unsaturated monomers including an amine-functional monomer is provided with improved resistance to chipping by chemically incorporating in it by covalent bonding one or more chemical agents selected from the group of:

Modified alkyd cationic electrodeposition compositions for producing

A cationic electrodeposition composition comprising the reaction product of one or more base alkyds, containing unsaturation of the fatty acid chains to provide oxidative curing and one or more ethylenically unsaturated monomers, and one or more amine functional monomers, which are added to the base alkyd and polymerized. This composition provides a vehicle which is hydrolytically stable. Paints are prepared by the addition of conventional driers, pigments and solvents to the vehicle composition.

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Minneapolis, MN, United States of America

Philip J Ruhoff