Patents Assigned to Para-Chem Southern, Inc.
  • Polyacrylate thickener and method of making same
    Patent number: 5939496
    Abstract: An improved polyacrylate thickener and a method for making same are provided. The polyacrylate thickener is made using a monomer blend containing ethyl acrylate. In one embodiment the ethyl acrylate is polymerized and then hydrolyzed using a metal hydroxide. The resulting thickener contains unhydrolyzed polyacrylates, metal polyacrylates and ethanol. The final product, which is nontoxic and nonhazardous, can then be added to other compositions, such as textile coatings, as a viscosity enhancer.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 17, 1999
    Assignee: Para-Chem Southern, Inc.
    Inventors: Gary Allan Ungefug, Benjamin Marvin Wicker, James Richard Bible, Billy Thomas Worley, Jr.
  • Polyacrylate thickener and method for making same
    Patent number: 5703176
    Abstract: An improved polyacrylate thickener and a method for making same are provided. The polyacrylate thickener is made using a monomer blend containing ethyl acrylate. In one embodiment the ethyl acrylate is polymerized and then hydrolyzed using a metal hydroxide. The resulting thickener contains unhydrolyzed polyacrylates, metal polyacrylates and ethanol. The final product, which is nontoxic and nonhazardous, can then be added to other compositions, such as textile coatings, as a viscosity enhancer.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: December 30, 1997
    Assignee: Para-Chem Southern, Inc.
    Inventors: Gary Allan Ungefug, Benjamin Marvin Wicker, James Richard Bible, Billy Thomas Worley, Jr.
  • Frothing aid composition
    Patent number: 4417016
    Abstract: An improved frothing aid composition for use in combination with sodium polyacrylate viscosity regulator which consists about 70 to 99% by weight of a surfactant and from about 1 to 30% by weight of a thickener comprising a copolymer of acrylic or methacrylic acid with at least one copolymerizable monomer selected from the group consisting of alkyl acrylates or methacrylates having up to 6 carbons in the alkyl, vinylidene aromatic monomers and aliphatic conjugated diene monomers of 4-10 carbon atoms.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: November 22, 1983
    Assignee: Para-Chem Southern, Inc.
    Inventors: Charles D. Cline, Thomas L. Mills