Patents by Inventor Charles A. Zezza

Charles A. Zezza 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: 5567788
    Abstract: A liquid resin-forming composition contains a polyether-ene such as a polyallyl glycidyl ether, a free radical-polymerizable monomer such as an acrylate ester, a free radical initiator such as an organic peroxide and/or an organic hydroperoxide and a promoter such as an amine and/or polyvalent metal carboxylate. Certain properties of the composition, specifically, its volatiles content, flash point and viscosity, can be such as to make the composition particularly useful for application to a solid permeable substrate such as a concrete structure where, upon curing, the resulting resin will heal and/or seal pores and/or small cracks in the substrate preventing or lessening its penetration by liquids.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: October 22, 1996
    Assignee: Rhone-Poulenc Inc.
    Inventor: Charles A. Zezza
  • Patent number: 5380804
    Abstract: Novel curable compositions based on carboxy/epoxy chemistry and cured coatings produced thereby are provided. The curable compositions employ 1,3,5-tris-(2-carboxyethyl)isocyanurate as the polybasic carboxylic acid crosslinker. The crosslinker is combined with a polyepoxide such as those obtained by copolymerizing glycidyl methacrylate with one or more epoxy-free olefinically-unsaturated monomers. The polyepoxide typically has a molecular weight of about 1,000 to about 30,000, an epoxy equivalent weight of about 50 to about 5,000, and a glass transition temperature of about 10.degree. C. to about 120.degree. C. A cure catalyst such as triphenyl phosphine is also used. Heat curing the compositions of the invention produces hard films useful as chip-, scratch- and mar- resistant coatings for automotive applications and as general use coatings for industrial applications.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: January 10, 1995
    Assignee: Cytec Technology Corp.
    Inventors: Robert G. Lees, Charles A. Zezza