Patents by Inventor John Rimma

John Rimma 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: 4681910
    Abstract: Aqueous, air drying latex coating compositions contain a large proportion of wax which dries to provide a continuous and durable film from which the wax exudes slowly and progressively to the surface over a long period of time to provide long-term water repellency. The coatings are primarily intended for application to exterior wood surfaces.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: July 21, 1987
    Assignee: DeSoto, Inc.
    Inventors: William B. Crockatt, John Rimma
  • Patent number: 4576987
    Abstract: An aqueous coating composition is disclosed which contains a large proportion of wax which dries to provide a continuous and durable film from which the wax exudes slowly and progressively to the surface over a long period of time to provide long term water resistance. This composition comprises: (1) from 5% to 40% of an aqueous microcrystalline wax dispersion; (2) from 40% to 93% of an aqueous emulsion of copolymerized monoethylenically unsaturated monomers having a sufficiently low glass transition temperature to coalesce on air drying; and (3) from 1% to 20% of an N-methylol functional self crosslinking polyurethane aqueous dispersion in which the polyurethane contains sufficient volatile amine-neutralized carboxyl groups for water dispersibility, these proportions being by weight based on the solids content of the three components which are blended together.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: March 18, 1986
    Assignee: DeSoto, Inc.
    Inventors: William B. Crockatt, John Rimma
  • Patent number: 4539047
    Abstract: A clear air drying coating composition adapted for the coating of wood to preserve its freshly prepared appearance is disclosed in which a solution of an unsaturated oil-containing resin in a solvent medium containing at least 50% of mineral spirits has stably dispersed therein from about 13 to 63 parts of granulated paraffin wax having an average melting point in the range of 50.degree. C.-70.degree. C. and from 0.5 to 20 parts of a transparent ultraviolet-absorbing pigment per 100 parts of the resin, the pigment being preferably yellow to maintain the natural color of the freshly prepared wood.
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: September 3, 1985
    Assignee: DeSoto, Inc.
    Inventors: William B. Crockatt, John Rimma
  • Patent number: 4450247
    Abstract: An air drying coating adapted to deposit coatings possessing long term water repellency is disclosed in which a high viscosity unsaturated hydroxy functional alkyd resin is combined with from 13-63 parts by weight of dispersed particles of granulated wax per 100 parts of the alkyd resin, the solvent being mineral spirits which cannot itself dissolve the large amount of wax needed, and the wax being a paraffin wax having an average melting point in the range of 50.degree. C.-70.degree. C., preferably 55.degree. C.-65.degree. C.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: May 22, 1984
    Assignee: DeSoto, Inc.
    Inventors: William B. Crockatt, John Rimma