Patents by Inventor Ken W. Niederst

Ken 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: 5491204
    Abstract: Barrier materials for reducing the permeability of plastic packaging materials are provided, characterized as containing at least about seven percent by weight amine nitrogen, or a total of at least about 17 percent amine nitrogen plus hydroxyl groups. The barrier materials exhibit oxygen permeability of less than about 1.5 cc-mil/100 in.sup.2 -day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in.sup.2 -day-atmosphere at 23.degree. C. and zero percent relative humidity. The barrier material is formed from a polyepoxide, a polyamine and an alkanolamine. Optionally the polyamine may comprise prereacted polymeric resin formed from a polyepoxide and a polyamine. Multilayer packaging materials and multilayer containers including the polyamine-polyepoxide barrier material are part of the invention.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: February 13, 1996
    Assignee: PPG Industries, Inc.
    Inventors: Richard M. Nugent, Jr., Ken W. Niederst, Jerome A. Seiner
  • Patent number: 5489455
    Abstract: A container is composed of one at least one layer of a gas-permeable polymeric material such as a polyolefin, polycarbonate or a polyester and at least one layer of a polymeric gas barrier material containing at least seven percent by weight of amine nitrogen derived from the reaction product of a polyamine and a polyepoxide.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: February 6, 1996
    Assignee: PPG Industries, Inc.
    Inventors: Richard M. Nugent, Jr., Ken W. Niederst, Jerome A. Seiner
  • Patent number: 5438109
    Abstract: Barrier materials for reducing the permeability of plastic packaging materials are provided, characterized as containing at least about seven percent by weight amine nitrogen, or a total of at least about 17 percent amine nitrogen plus hydroxyl groups. The barrier materials exhibit oxygen permeability of less than about 1.5 cc-mil/100 in.sup.2 -day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in.sup.2 -day-atmosphere at 23.degree. C. and zero percent relative humidity. The barrier material can be formed from polyepoxide and polyamine. Optionally the polyamine may comprise prereacted polymeric resin formed from a polyepoxide and a polyamine. Multilayer packaging materials and multilayer containers including the polyamine-polyepoxide barrier material are part of the invention.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: August 1, 1995
    Assignee: PPG Industries, Inc.
    Inventors: Richard M. Nugent, Jr., Ken W. Niederst, Jerome A. Seiner
  • Patent number: 5300541
    Abstract: Barrier materials for reducing the permeability of plastic packaging materials are provided, characterized as containing at least about seven percent by weight amine nitrogen, or a total of at least about 17 percent amine nitrogen plus hydroxyl groups. The barrier materials exhibit oxygen permeability of less than about 1.5 cc-mil/100 in.sup.2 -day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in.sup.2 -day-atmosphere at 23.degree. C. and zero percent relative humidity. The barrier material can be formed from polyepoxide and polyamine. Optionally the polyamine may comprise prereacted polymeric resin formed from a polyepoxide and a polyamine. Multilayer packaging materials and multilayer containers including the polyamine-polyepoxide barrier material are part of the invention.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: April 5, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Richard M. Nugent, Jr., Ken W. Niederst, Jerome A. Seiner
  • Patent number: 5300334
    Abstract: Pressurizable thermoplastic containers, such as those made from polyethylene terephthalate containing a polyurethane layer on the exterior surface thereof are disclosed. The polyurethane layer which is typically applied by a coating process provides the bottle with resistance to stress cracking. The containers are useful as refillable bottles for carbonated beverages which have a tendency to stress crack.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: April 5, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Ken W. Niederst, John R. Zern, Jerome A. Seiner
  • Patent number: 5008137
    Abstract: Multilayer packaging materials and multilayer containers including a barrier material having excellent resistance to gas permeability are provided. The multilayer packaging materials and containers include at least one permeable polymeric material and at least one layer of a barrier material which is a reaction product of: (i) an ungelled amine-functional polymeric resin, which is a reaction product of a polyamine and a polyfunctional material having at least two functional groups reactive with said polyamine, the ungelled polymeric resin further containing an average of greater than two polyamine moieties per molecule within said resin; and (ii) a material selected from the group consisting of a polyepoxide, a polyoxalate or mixtures thereof, the barrier material characterized as containing at least about four percent by weight amine nitrogen and having an oxygen permeability of less than about 3 cc-mil/100 in.sup.2 -day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in.sup.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: April 16, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Richard M. Nugent, Jr., Ken W. Niederst, Jerome A. Seiner
  • Patent number: 5006381
    Abstract: Ungelled thermoplastic resins, coating compositions of such resins and multilayer containers and packaging films including a layer of an ungelled thermoplastic resin are disclosed. The ungelled thermoplastic resins are reaction products of polyepoxides with polyamines.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: April 9, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Richard M. Nugent, Jr., Ken W. Niederst, Jerome A. Seiner
  • Patent number: 4812215
    Abstract: An aqueous, cationically electrodepositable coating composition contains a ternary sulfonium or quaternary phosphonium group containing resin, an aminoplast or phenoplast crosslinking agent and a catalytic amount of a non-ionic ester of a sulfonic acid as latent acid catalyst to catalyze the reaction between the sulfonium or phosphonium group containing resin and the aminoplast crosslinking agent.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: March 14, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Richard F. Karabin, Ken W. Niederst, Michael G. Sandala, Edward R. Coleridge
  • Patent number: 4788108
    Abstract: Disclosed is a curable filler composition which resists absorption into a porous substrate, particularly one derived from wood, comprising: (1) a liquid, ungelled binder of an unsaturated polyester resin having number average molecular weight of from 500 to 3,000 derived from an ethylenically unsaturated carboxylic acid or anhydride thereof, the unsaturated polyester resin having been iminated with an alkylenimine, (2) one or more ethylenically unsaturated compounds different from and cocurable with the unsaturated polyester resin, (3) pigment, (4) a free radical initiator, and (5) optionally a carrier solvent for the filler composition.Disclosed is a method of minimizing absorption of a filler composition into a warm or hot porous substrate.Also disclosed is a porous substrate, particularly one derived from wood, having adhered to a substrate thereof the cured filler composition.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: November 29, 1988
    Assignee: PPG Industries, Inc.
    Inventors: John B. Saunders, Jr., Robert M. Piccirilli, William J. Schillinger, Ken W. Niederst
  • Patent number: 4745003
    Abstract: Disclosed is a method of coating the metal side of a mirror by applying to a reflective layer of metal adhered to a transparent glass sheet one or more adherent protective layers wherein the outermost protective layer is a cured coating formed from a liquid coating composition which is curable by exposure to ultraviolet light (UV). The UV curable liquid coating composition has a high degree of resistance to shrinkage upon curing.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: May 17, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Robert J. Sirkoch, Ken W. Niederst, Alan B. Weissberg, Paul P. Greigger, Calvin C. Henning
  • Patent number: 4009307
    Abstract: Coating compositions which form polyurea-urethane coatings having excellent chemical and physical properties are prepared by blending (a) from about 2 percent to about 80 percent by weight of resin solids of an isocyanate-terminated polyurethane prepolymer consisting essentially of the reaction product of an organic diisocyanate and an organic diol, wherein said prepolymer is prepared at an NCO/OH ratio of from 2:1 to about 4:3, (b) from about 2 percent to about 60 percent by weight resin solids of an isocyanate-terminated polyurethane prepolymer consisting essentially of the reaction product of 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane and a mixture of aliphatic polyols wherein at least about 30 mole percent of the total hydroxyl groups supplied by said mixture of polyols is supplied by an aliphatic polyol having at least three hydroxyl groups and wherein said prepolymer is prepared at an NCO/OH ratio of at least 1.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: February 22, 1977
    Assignee: PPG Industries, Inc.
    Inventors: J. Alden Erikson, Ken W. Niederst