JOSEPH W MCLAUGHLIN
Broker in Philadelphia, PA

RE31309, Jul 12, 1983

Jul 7, 1981

6/281201

Joseph A. Antonelli - Riverton NJ
Renee J. Kelly - Media PA
Joseph E. McLaughlin - Philadelphia PA

E. I. Du Pont de Nemours and Company - Wilmington DE

C08L 2514, C08L 3312

523459

A high solids coating composition that dries rapidly to a tack-free finish and cures under ambient temperature conditions to a durable finish useful for metals, plastics, wood, fiberglass reinforced plastics; the coating composition is used as a finish for automobiles, trucks, trailers, tractors, appliances and airplanes and also used to refinish automobiles and trucks; the film forming polymer of the coating composition has a backbone of polymerized monomers of an alkyl methacrylate such as methyl methacrylate or styrene, an alkyl acrylate and hydroxyl containing monomers such as a hydroxy alkyl acrylate or a hydroxy alkyl methacrylate and has attached thereto pendant drying oil fatty acid groups to provide the composition with ambient curing characteristics; wherein these drying oil fatty acid groups are attached by a reaction of the carboxyl group of the drying oil fatty acid and pendant hydroxyl group of the polymer backbone.

4242243, Dec 30, 1980

Jul 18, 1979

6/058662

Joseph A. Antonelli - Riverton NJ
Renee J. Kelly - Media PA
Joseph E. McLaughlin - Philadelphia PA

E. I. Du Pont De Nemours and Company - Wilmington DE

C08L 2514, C08L 3312

260 23AR

A high solids coating composition that dries rapidly to a tack-free finish and cures under ambient temperature conditions to a durable finish useful for metals, plastics, wood, fiberglass reinforced plastics; the coating composition is used as a finish for automobiles, trucks, trailers, tractors, appliances and airplanes and also used to refinish automobiles and trucks; the film forming polymer of the coating composition has a backbone of polymerized monomers of an alkyl methacrylate such as methyl methacrylate or styrene, an alkyl acrylate and hydroxyl containing monomers such as a hydroxy alkyl acrylate or a hydroxy alkyl methacrylate and has attached thereto pendant drying oil fatty acid groups to provide the composition with ambient curing characteristics; wherein these drying oil fatty acid groups are attached by a reaction of the carboxyl group of the drying oil fatty acid and pendant hydroxyl group of the polymer backbone.

4849480, Jul 18, 1989

Oct 13, 1987

7/106660

Joseph A. Antonelli - Riverton NJ
Joseph E. McLaughlin - Philadelphia PA
Clifford H. Strolle - Springfield PA

E. I. Du Pont de Nemours and Company - Wilmington DE

C08F25702, C08F26504, C08F26506

525303

Crosslinked polymer microparticles that have a particle size of about 0. 1-5 microns of polymerized monomers of styrene, alkyl methacrylate having 1-12 carbons in the alkyl group, alkyl acrylate having 1-12 carbon atoms in the alkyl group and mixtures thereof, about 0. 1-5% by weight of a crosslinking monomer of an alkylene glycol dimethacrylate or diacrylate each having 1-8 carbon atoms in the alkyl group and about 0. 1-5% by weight of allyl methacrylate or allyl acrylate; said polymer having a weight average molecular weight of about 500,000 to 5,000,000; polymeric chains are grafted onto the polymer microparticles; the microparticles are useful as additives for coating compositions to control rheology and in particular for metallic pigment flake and sag control.

4282124, Aug 4, 1981

Nov 14, 1979

6/094284

Joseph E. McLaughlin - Philadelphia PA

E. I. Du Pont de Nemours and Company - Wilmington DE

B32B 1508, B32B 2740, C09D 364, C09D 380

260 22A

Diethyl fumarate can be used in proportions of up to 50% by weight to dilute oxidative-cure coating systems, e. g. , alkyds, to permit higher solids, i. e. , lower volatile solvents, content and to enhance through-cure of thick films without wrinkling.