Patents by Inventor John S. Ostrowski

John S. Ostrowski 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: 4405428
    Abstract: Disclosed is a method of imparting water solubility or dispersibility to the reaction product of a polyepoxide and a mercapto-substituted triazole, a mercapto substituted tetrazole or a mixture thereof, by admixture with a base in an amount at least sufficient to water solubilize the azole-functional reaction product.Also disclosed is a method of using the above water solubilized reaction product in an electrodeposition process.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: September 20, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Nicholas T. Castellucci, John F. Grunewalder, John S. Ostrowski
  • Patent number: 4360614
    Abstract: Disclosed is a method of imparting water solubility or dispersibility to the reaction product of a polyepoxide and a mercapto-substituted triazole, a mercapto substituted tetrazole or a mixture thereof, by admixture with a base in an amount at least sufficient to water solubilize the azole-functional reaction product.Also disclosed is a method of using the above water solubilized reaction product in an electrodeposition process.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: November 23, 1982
    Assignee: PPG Industries Inc.
    Inventors: Nicholas T. Castellucci, John F. Grunewalder, John S. Ostrowski
  • Patent number: 4357396
    Abstract: The invention is directed to an article comprising a thin film of silver and/or copper contacted with a compound selected from the group consisting of a thiadiazole substituted by a mercapto group and/or an amino group and a triazole substituted by a mercapto and optionally an amino group. The invention is also directed to a method of protecting a silver and/or copper metallic film by contacting the film with a compound selected from the above group.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: November 2, 1982
    Assignee: PPG Industries, Inc.
    Inventors: John F. Grunewalder, William A. Essary, John S. Ostrowski
  • Patent number: 4350804
    Abstract: The invention is directed to curable compositions comprising an azole-functional resin and a labile metal-ligand complex. The azole-functional resin is the reaction product of a monomeric or polymeric resin and a reactive N-heterocyclic compound containing at least two nuclear nitrogen atoms in a 5-membered ring structure capable of forming stable metal-ligand complexes. Mixtures of azole-functional resins also may be used with the labile-metal ligand complexes in the compositions of the invention.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: September 21, 1982
    Assignee: PPG Industries, Inc.
    Inventors: John S. Ostrowski, John F. Grunewalder, Nicholas T. Castellucci
  • Patent number: 4322459
    Abstract: The invention is directed to resins which are the reaction product of an amino or mercapto substituted azole and a polyepoxide wherein the ratio of equivalents of the azole to the polyepoxide is from about 0.5:1.0 to about 1.5:1.0, preferably from about 0.9:1.0 to about 1.1:1.0. The resins can be acid or base solulized depending on whether amino or mercapto substituted azoles were used in their preparation. The invention is also directed to storage stable compositions which cure at relatively low temperatures in short periods of time comprising specified amounts of the resin containing azole-functionality, polyepoxides, organic solvents, and optionally pigments and additives.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: March 30, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Nicholas T. Castellucci, John S. Ostrowski, John F. Grunewalder