Patents by Inventor Kenneth W. Niederst

Kenneth W. Niederst 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: 7858162
    Abstract: Food cans coated at least in part on the interior with a composition comprising an acrylic polymer and a crosslinker are disclosed. The composition is substantially epoxy-free and substantially polyester-free. The acrylic polymer has a weight average molecular weight of greater than or equal to 41,000 and an acid value of <30 mg KOH/g. Food cans coated at lease in part on the interior with a composition having a tensile strength of greater than 11 MPa are also disclosed.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: December 28, 2010
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Mary Ann M. Fuhry, John M. Dudik, Ronald R. Ambrose, Kenneth W. Niederst
  • Patent number: 4634602
    Abstract: Compositions of the invention comprise a radiation sensitive compound having ethylenic unsaturation and at least one moiety selected from the group consisting of a urea moiety, a urethane moiety and mixtures thereof, a radiation insensitive compound having a number average molecular weight of at least about 400 comprising at least about 40 percent, by weight, based on the weight of the radiation insensitive compound, of aromatic ring moieties and having a hydroxyl equivalent weight of between about 200 and 1500 and a crosslinking agent reactive with the hydroxyl groups present in said radiation insensitive compound, said crosslinking agent being selected from the group consisting of an aminoplast resin, a blocked isocyanate and mixtures thereof. The composition is capable of being cured using heat and either ultraviolet light or ionizing radiation. A process for applying and curing the composition of the invention on a substrate is also disclosed.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: January 6, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Robert J. Sirkoch, Kenneth W. Niederst
  • Patent number: 4113676
    Abstract: Stabilizing aqueous dispersions of organic ester-containing compositions against degradation with carbodiimides is disclosed.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: September 12, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Kenneth W. Niederst