Patents by Inventor Alfred E. Smith

Alfred E. Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4529767
    Abstract: A thermosetting latex paint is disclosed which cures to provide better gloss and gloss retention of ultraviolet exposure. This latex paint comprises water having suspended therein copolymer particles of aqueous emulsion copolymerized monomers consisting essentially of monoethylenically unsaturated monomers including at least about 30% up to about 80% of vinyl acetate, the balance of the monomers in the copolymer including from 2% up to about 15% of monomers providing reactive hydrogen atoms, like hydroxyethyl methacrylate, to enable the copolymer to thermoset in the presence of a curing agent which reacts with the reactive hydrogen atoms of the copolymer, like hexamethoxymethyl melamine. The copolymer particles are suspended in the water by surfactant comprising at least 2% up to about 8%, based on total monomers, of an ethylene oxide adduct of an alkyl-substituted phenol having from 10-18 carbon atoms in the alkyl group with 5-14 moles of adducted ethylene oxide per mole of said substituted phenol.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: July 16, 1985
    Assignee: DeSoto, Inc.
    Inventors: Christine P. Bashleben, Gregory D. Shay, Alfred E. Smith