Patents by Inventor Rostyslaw Dowbenko

Rostyslaw Dowbenko 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: 4591518
    Abstract: An air oxidizable coating composition is disclosed comprising an ungelled urethane modified alkyd resin containing pendant polymerizable unsaturated groups attached to the alkyd through urethane linkages. The ungelled urethane modified alkyd is the reaction product of components comprising a hydroxyl containing, air oxidizable alkyd resin having an oil length of between about 20 percent and about 70 percent and an isocyanate-functional ethylenically unsaturated compound. Also disclosed are a process for coating the substrate with the coating composition and certain ungelled urethane modified alkyd resins.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: May 27, 1986
    Assignee: PPG Industries, Inc.
    Inventors: William J. Schillinger, J. Alden Erikson, Rostyslaw Dowbenko, Roger M. Christenson
  • Patent number: 4550137
    Abstract: In a curable composition capable of acid catalyzed crosslinking and having as its principal components an active hydrogen-containing resin, a crosslinking agent present externally and/or internally as a part of the active hydrogen-containing resin, and an acid catalyst, cure can be readily attained by using as the acid catalyst, a catalytic amount of a latent acid catalyst which is the reaction product of a member selected from a lactam, an amino acid, an amino ester and an aminoalkyl ester; an alcohol or water; and a member selected from a sulfonic acid, sulfuric acid, and phosphoric acid.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: October 29, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Rostyslaw Dowbenko, Barbara A. Greigger
  • Patent number: 4540740
    Abstract: A process for preparing polymeric microgel by aqueous dispersion polymerization techniques is disclosed. The emulsion can be inverted into organic diluent, and the water removed to form a dispersion of the microgel in the organic diluent. The microgel can be formulated into coating compositions where it improves the sag resistance and metallic pigment pattern control of the coating composition.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: September 10, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Kurt G. Olson, Suryya K. Das, Rostyslaw Dowbenko
  • Patent number: 4529665
    Abstract: In a curable composition which contains as its principal components an active hydrogen-containing resin, a curing agent, and an acid catalyst, improved properties result by utilizing as the acid catalyst an ammonium salt or substituted ammonium salt of a sulfocarboxylic acid ester. The resultant composition is capable of curing at a low temperature and exhibits good appearance, solvent resistance and intercoat adhesion.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: July 16, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Suryya K. Das, Samuel Porter, Jr., William P. Blackburn, Karl F. Schimmel, Rostyslaw Dowbenko
  • Patent number: 4517322
    Abstract: Non-gelled resins formed by reacting an ethylenically unsaturated polyester with ethylenically unsaturated monomers which include an ethylenically unsaturated acid are provided which are useful in coatings having better stability.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: May 14, 1985
    Assignee: PPG Industries, Inc.
    Inventors: William J. Birkmeyer, Ralph C. Gray, Rostyslaw Dowbenko, David C. Kapp, Ellor J. VanBuskirk, Rudolf Maska
  • Patent number: 4501854
    Abstract: An improved curable composition capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent and a sulfonate as latent acid catalyst. The catalyst is represented by the following structural formula: ##STR1## wherein: Z is a radical independently selected from C.sub.1 to C.sub.20 alkyl, C.sub.3 to C.sub.20 cycloalkyl, C.sub.6 to C.sub.18 aryl, halogen, alkoxy, hydroxyl, and aryloxy;R is independently selected from hydrogen, C.sub.1 to C.sub.20 alkyl, C.sub.3 to C.sub.20 cycloalkyl, and C.sub.6 to C.sub.18 aryl;R.sup.1 is independently selected from C.sub.1 to C.sub.20 alkyl, C.sub.3 to C.sub.20 cycloalkyl, hydroxyalkyl, and hydroxycycloalkyl;y is an integer from 0 to 4,w is an integer from 0 to 2, andx is an integer from 1 to 3, with the proviso that when w is 0, y is an integer from 1 to 4 and x is an integer from 2 to 3 and when y is 0, w is an integer from 1 to 2 and x is an integer from 1 to 3.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: February 26, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko
  • Patent number: 4500680
    Abstract: Curable compositions with improved humidity resistance are composed of an active hydrogen-containing resin which is essentially free of glycidyl groups, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a sulfonic acid having a molecular weight of less than 500 and represented by the following structural formula: ##STR1## wherein: Z is a radical independently selected from C.sub.1 to C.sub.20 alkyl, C.sub.3 to C.sub.20 cycloalkyl, C.sub.6 to C.sub.18 aryl, halogen, alkoxy, and aryloxy;R is independently selected from hydrogen, C.sub.1 to C.sub.20 alkyl, C.sub.3 to C.sub.20 cycloalkyl and C.sub.6 to C.sub.18 aryl;y is an integer from 0 to 4; w is an integer from 0 to 2;x is an integer from 1 to 3, with the proviso that when w is 0, y is an integer from 1 to 4 and x is an integer from 2 to 3 and when y is 0, w is an integer from 1 to 2 and x is an integer from 1 to 2.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: February 19, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko, James B. O'Dwyer
  • Patent number: 4499151
    Abstract: Disclosed is a method for coating a substrate comprising the steps of (a) forming a basecoat by coating the substrate with a pigmented basecoating composition; and (b) thereafter forming a topcoat by coating the basecoat with a clear topcoating composition; wherein at least one of the basecoating composition and topcoating composition contains an addition interpolymer having alkoxysilane and/or acyloxysilane moieties.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: February 12, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Rostyslaw Dowbenko, Raymond S. Stewart, Marvis E. Hartman, Barbara Gorman, Stephen J. Thomas
  • Patent number: 4499150
    Abstract: Disclosed is a method for coating a substrate comprising the steps of (a) forming a basecoat by coating the substrate with a pigmented basecoating composition; and (b) thereafter forming a topcoat by coating the basecoat with a clear topcoating composition; wherein at least one of the basecoating composition and topcoating composition contains an addition interpolymer having alkoxysilane and/or acyloxysilane moieties, a peak molecular weight of from about 2,000 to about 20,000, and a calculated glass transition temperature of at least about 25.degree. Celsius.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: February 12, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Rostyslaw Dowbenko, Raymond S. Stewart, Marvis E. Hartman, Barbara Gorman, Stephen J. Thomas
  • Patent number: 4482691
    Abstract: Air-drying fatty acid-modified acrylic resins and oxidizable resinous vehicles containing same, and a novel drier system comprising a coordination complex of titanium and cobalt are herein disclosed.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: November 13, 1984
    Assignee: PPG Industries, Inc.
    Inventors: John B. Saunders, Jr., Karl F. Schimmel, Rostyslaw Dowbenko
  • Patent number: 4477618
    Abstract: A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a non-ionic ester of a sulfonic acid. The sulfonic acid ester is represented by the following structural formula: ##STR1## wherein: Z is a radical selected from the group consisting of amino and an organic radical, said organic radical being connected to the sulfur atom by a carbon atom; ##STR2## C.sub.3 -C.sub.20 cycloalkyl; and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 are independently hydrogen or an organic radical. These groups can be particularly described as follows:R.sub.1 is hydrogen, carboalkoxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.2 is hydrogen, carboalkoxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 16, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko, Roger M. Christenson, Michael M. Chau, Wen-Hsuan Chang
  • Patent number: 4469832
    Abstract: A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a non-ionic, saturated or unsaturated organic polycyclic ester of a sulfonic acid.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: September 4, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Debra L. Singer, Karl F. Schimmel, Rostyslaw Dowbenko, Michael M. Chau, Wen-Hsuan Chang
  • Patent number: 4454274
    Abstract: A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin; and a catalytic amount of a non-ionic ester of a sulfonic acid. The sulfonic acid ester is represented by the following structural formulas: ##STR1## wherein: Z is a radical selected from the group consisting of amino and an organic radical, said organic radical being connected to the sulfur atom by a carbon atom;W is C.sub.1 -C.sub.18 alkylene, C.sub.2 -C.sub.18 alkenylene;V is C.sub.1 -C.sub.18 alkylene, C.sub.1 -C.sub.18 hydroxyl substituted alkylene, C.sub.2 -C.sub.18 alkenylene, C.sub.2 -C.sub.18 hydroxyl substituted alkenylene; andR.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 are independently hydrogen or an organic radical.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: June 12, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko, Roger M. Christenson
  • Patent number: 4410687
    Abstract: A polyester resin has an oxyalkylene content of from about 40 percent to about 75 percent. The polyester resin is especially useful as a pigment dispersant in coating compositions. Such compositions can be formulated without the need for conventional low molecular weight dispersants and surfactants which oftentimes adversely affect the film properties of the applied compositions.
    Type: Grant
    Filed: November 29, 1982
    Date of Patent: October 18, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Michael A. Traficante, Rostyslaw Dowbenko
  • Patent number: 4409376
    Abstract: There are herein provided reaction products of a compound containing an ethylenically unsaturated group and a compound containing at least two reactive groups of varying reactivity. One of the reactive groups such as a mercapto group reacts through the ethylenically unsaturated group. The resulting products are useful as reactive diluents or as film-formers.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: October 11, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Rostyslaw Dowbenko, Marvis E. Hartman, Thomas R. Hockswender
  • Patent number: 4403091
    Abstract: Ungelled hydroxyl-containing oligomers and their method of preparation are disclosed. The oligomers can be prepared by reacting an organic isocyanate with a half-ester formed from reacting a polyol with a 1,2-dicarboxylic acid anhydride followed by reaction with an epoxide. The oligomers are useful as resinous binders in high solids coating compositions. The coating compositions can be applied by spraying and do not result in a tacky overspray common with many high solids coating compositions.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: September 6, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Marvis E. Hartman, Barbara A. Greigger, Rostyslaw Dowbenko
  • Patent number: 4403093
    Abstract: Ungelled polyester oligomers which are formed from reacting polyols, 1,2-dicarboxylic acid anhydrides and polyepoxides are disclosed. The polyesters are useful as resinous binders in high solids coating compositions. The coating compositions can be applied by spraying and do not result in a tacky overspray common with many high solids coating compositions.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: September 6, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Marvis E. Hartman, Barbara A. Greigger, Rostyslaw Dowbenko
  • Patent number: 4380601
    Abstract: A cationic thermosetting latex, coating compositions prepared therefrom, and the process for providing a protective coating are disclosed. The thermosetting latex comprises a blocked isocyanate curing agent and a cationic acrylic latex which is prepared by copolymerizing ethylenically unsaturated monomers, at least one of which contains an active hydrogen group, in an acidic medium in the presence of a cationic surfactant, of which the gegen-ion is derived from certain phosphorous-containing acids. Such latices, when formulated into coating compositions, provide corrosion-resistant coatings.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: April 19, 1983
    Assignee: PPG Industries, Inc.
    Inventors: David A. Welsh, Rostyslaw Dowbenko, Suryya K. Das, Charles M. Kania, Roger M. Christenson
  • Patent number: 4337184
    Abstract: Rheology modifiers useful in water-based and organic solvent-based compositions are derived from the reaction of polyalkylene oxide, polyfunctional material, diisocyanate and little or no water. The modifiers are characterized by having a branched structure and containing substantially no terminal hydrophobic groups.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: June 29, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Jerome A. Seiner, Rostyslaw Dowbenko, Roger M. Christenson
  • Patent number: 4335829
    Abstract: An aqueous resinous dispersion and a method of coating employing the aqueous resinous dispersion are disclosed. The aqueous resinous dispersions are solubilized with base and comprise an acrylic polymer containing N-ethoxymethylacrylamide or methacrylamide moieties and an epoxy resin. The dispersion is useful for coating metal containers particularly as a coating for the interior of containers which are used for alcoholic beverages, for example, beer cans.
    Type: Grant
    Filed: November 29, 1978
    Date of Patent: June 22, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Roger M. Christenson, Rudolf Maska, Rostyslaw Dowbenko, Thomas R. Hockswender