The Glidden Company

Scm Corporation

Kenneth G Hahn

Gary P Craun

Barbara L Kunz

David A Borovicka, Sr

John T Tupa

George P Rosekelly

An ambient dry water dispersed coating composition substantially free of volatile organic coalescing solvents, the coating composition containing a polymer film forming binder comprises between 40% and 50% copolymerized non-conjugated, unsaturated fatty acid triglyceride, between 40% and 55% copolymerized ethylenic monomer including styrene, and between 3% and 12% copolymerized maleic anhydride. The film forming copolymer is produced by first reacting maleic anhydride with the fatty acid triglyceride at high temperatures between 140&deg; C. to form a maleinized triglyceride having a pendent maleic anhydride structure. The maleinized triglyceride is then styrenated at temperatures between about 80&deg; C. and 200&deg; C. in the presence of at least 4% peroxide initiator based on the weight of monomers copolymerized to form a styrenated, maleinized fatty acid triglyceride copolymer having anhydride groups. The anhydride groups are neutralized with amine or ammonia and the neutralized copolymer is dispersed in water.

Styrenated maleinized fatty acid glyceride copolymer for aqueous dispersed binders in solvent free ambient dry paints

The invention pertains to an aqueous acrylic copolymer thickener particularly useful for thickening latex paints, the thickener copolymer comprising aqueous copolymerized ethylenically unsaturated monomers comprising between 10% and 90% carboxyl functional monomer, between 1% and 50% long alkyl ester of acrylate or methacrylate, and preferably between 20% and 90% methyl or ethyl acrylate or methacrylate. The mixture of monomers is mixed with water and surfactant, micronized to droplet size less than 5 microns, copolymerized to form a carboxyl functional copolymer, which is then neutralized with amine to form a thickener copolymer.

Acrylic aqueous miniemulsion copolymer thickeners and latex paints containing said thickeners

The pigmented paint coating composition is based on a cationic free polymeric binder comprising a cationic free, functional emulsion polymer and glycoluril where the emulsion polymer are adapted to coreact to form a thermoset paint film, and said polymeric binder is combined with a low-cation opacifying pigment. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium, to produce the reactive emulsion polymer. The emulsion polymer and the glycoluril derivative are treated with ion-exchange step to produce the cation-free polymeric binder.

Pigmented low temperature cure emulsion polymers

A stabilized aqueous, thermosetting coating composition substantially free of acid cure catalysts comprises a mixture of an ion-exchanged reactive function emulsion polymer and a glycoluril derivative adapted to coreact and crosslink the functional polymer where certain cations are added to the ion-exchanged mixture to provide a pH of the mixture between 2 and 5.

Process for producing low temperature cure emulsions

Low temperature cure emulsions

An aqueous thermosetting protective coating composition cures by water evaporation followed by thermosetting crosslinking of the polymeric binder. The polymeric binder is ion-exchanged to remove cations and reduce the pH to less than 2.5 and comprises copolymerized ethylenic monomers including a beta-hydroxy ester monomer, whereby the polymer is self-curing by crosslinking by transesterification through hydroxy groups and beta-ester groups.

Ion-exchanged, crosslinking latex paints

A paint coating comprising a self-curing emulsion polymer having functional carboxyl groups or hydroxyl groups as well as alkylol acrylamide, but is substantially free of amine groups, where the self-curing emulsion polymer is ion-exchanged to render said polymer self-curing.

Thermosetting arcylic latexes

Thermosetting acrylic latexes

The paint coating composition comprises a cationic free, functional emulsion polymer mixture adapted to be coreacted at room temperature with glycoluril to provide a cured thermoset paint film. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers, but excluding amine monomers, in an aqueous polymerization medium, followed by ion exchange of the resulting reactive emulsion polymer. Preferably, the glycoluril is processed through an ion exchange step separately or in conjunction with the reactive emulsion polymer. The resulting polymers are useful as binders in ambient cure surface coating application.

Ambient cure latex paint

The composition comprises a cationic free, functional emulsion polymer mixture adapted to be coreacted with glycoluril. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium. The resulting polymers are useful in surface coating application generally as well as specifically for wood substrates.

Pigmented low temperature cure emulsions

A process for treating wood substrate, including textured hardboard having surface irregularities consisting of high ridge areas protruding above the surface, with a low viscosity aqueous coating to produce a coated article having substantially uniform film thickness. A substantially uniform film can be obtained by preheating the substrate (about 250.degree. to 400.degree. F.), flooding the surface with the aqueous coating, partially dewatering and affixing the coating to the surface by coalescence and removing the excess coating. It is necessary to critically control the substrate temperature and time in which the coating remains in contact with the heated substrate before the excess coating is removed using an air knife.

Process for coating a woody substrate and product

Thermosetting low temperature cure coating compositions produced by combining certain acrylamide emulsion polymers containing both carboxyl and hydroxyl groups with a glycoluril whereby both the carboxyl and hydroxyl groups cross-link with the glycoluril upon curing.

Low temperature cure latexes

Thermosetting low temperature cure coating compositions produced by combining certain emulsion polymers containing reactive hydroxyl groups, carboxyl groups, and acrylamide groups with a dimethylol dihydroxy ethylene urea whereby the hydroxyl groups cross-link with the dimethylol dihydroxy ethylene urea upon curing. Preferred emulsion polymers are acrylamide polymers.

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Hinckley, OH, United States of America

Kenneth G Hahn