Patents by Inventor Robert J. Gaal, Jr.

Robert J. Gaal, Jr. 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: 6172159
    Abstract: A water-reducible polyester resin for use in producing urethane coatings comprises the reaction product of: a) hexahydrophthalic anhydride, trimellitic anhydride or phthalic anhydride; b) 1,4-cyclohexane dimethanol or trimethylol propane or mixtures thereof; and c) a polyethylene glycol selected from the group consisting of polyethylene glycols, methoxy polyethylene glycols and trifunctional polyethylene glycols having a molecular weight no greater than approximately 1050; the reaction product having a functionality between approximately 2 and 2.6. Another water-reducible polyester resin comprises the same components and a specified nonionic surfactant. Urethane coatings containing such polyester resins and a diisocyanate are also disclosed.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 9, 2001
    Assignee: Accures Corporation
    Inventors: Robert J. Gaal, Jr., Roger W. Heitland
  • Patent number: 6100364
    Abstract: A water-reducible binder for coatings comprises the reaction products of a) a phenolic resin comprising the reaction product of bisphenol A, t-butyl phenol and formaldehyde; b) an alkylene carbonate alkoxylating agent; c) a diol selected form the group consisting of 1,4-cyclohexanedimethanol, 3,5,5-trimethylpentane diol and neopentyl glycol; and d) trimellitic anhydride. Methods for preparing such a water-reducible binder and coating systems comprising such a binder are also disclosed.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: August 8, 2000
    Assignee: U.S. Polymers, Inc.
    Inventors: Robert J. Gaal, Jr., Roger W. Heitland