Patents by Inventor Edwin A. Zychowski

Edwin A. Zychowski 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: 4661550
    Abstract: A thermosetting solvent solution coating composition is disclosed in which a solution copolymer of copolymerized monomers consisting essentially of from 55% to 75% of vinyl acetate, from 15% to 40% of C.sub.2 -C.sub.8 alkyl acrylate or methacrylate, from 3% to 10% of C.sub.2 -C.sub.4 hydroxyalkyl acrylate or methacrylate, and from about 0.5% to about 5% of monoethylenically unsaturated copolymerizable carboxylic acid if formed by copolymerization in organic solvent solution medium consisting essentially of C.sub.1 -C.sub.8 alkoxy C.sub.2 -C.sub.4 alkanol at a solids content of at least about 75% and at an average temperature of from 95.degree. C. to 105.degree. C. at which reflux does not occur. This copolymer is used in admixture with from 8% to 20%, based on the mixture, of polyalkoxymethyl melamine in which a volatile alcohol provides the alkoxy groups.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: April 28, 1987
    Assignee: DeSoto, Inc.
    Inventor: Edwin A. Zychowski
  • Patent number: 4649045
    Abstract: The present invention relates to coating compositions that include an admixture or blend of at least two solution copolymers that provide combinations of properties which are not possessed by coating compositions that include only one of the copolymers. Each solution copolymer contains at least one aromatic monoethylenic monomer and at least one monoethylenic ester in amounts sufficient to provide a first solution copolymer having a glass transition temperature between about 40 and 70 degrees Centigrade and a second solution copolymer having a glass transition temperature between about -10 and +10 degrees Centigrade. Pigments can be readily wetted and dispersed in the copolymer blend to provide stable pigment concentrates that are useful in the preparation of coating compositions suitable for use on human fingernails.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: March 10, 1987
    Assignee: DeSoto, Inc.
    Inventors: Joseph E. Gaske, Edwin A. Zychowski
  • Patent number: 4450251
    Abstract: Aqueous thermosetting varnish compositions that are particularly water resistant after curing are disclosed. These compositions contain by weight (A) about 20-40 percent of a solution copolymer polymerized from monomers consisting essentially of (a) about 50-75 percent vinyl ester of a C.sub.1 -C.sub.3 carboxylic acid, (b) about 10-45 percent of C.sub.1 -C.sub.8 alkyl acrylate or methacrylate ester and (c) about 5-15 percent of a mixture of (i) at least about 0.5 percent monoethylenically unsaturated C.sub.3 -C.sub.5 carboxylic acid and (ii) at least about 2 percent C.sub.2 -C.sub.4 hydroxyalkyl acrylate or methacrylate. The copolymer is polymerized at a temperature of at least 110.degree. C. and at a non-volatile solids content of 60-80 percent.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: May 22, 1984
    Assignee: DeSoto, Inc.
    Inventors: Edwin A. Zychowski, Ronald L. Richards