Elemental Sulfur Is Reactant Patents (Class 528/389)
  • Modified sulfur cement
    Patent number: 4311826
    Abstract: A modified sulfur cement comprising the polymeric reaction product of elemental sulfur and a cyclopentadiene oligomer containing reactant.Cement compositions can be formulated by blending an aggregate material with the modified sulfur cement.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: January 19, 1982
    Assignee: The United States of America as represented by the United States Department of Commerce
    Inventors: William C. McBee, Thomas A. Sullivan
  • Sulphur cements, process for making same and sulphur concretes made therefrom
    Patent number: 4293463
    Abstract: Novel sulphur cements and concretes are provided. They contain, in addition to the sulphur, a particularly recited olefinic hydrocarbon polymer material, either added as such or prereacted with sulphur, as a chemical stabilizer, and a particularly recited particulate viscosity increasing, surface active, stabilizer, e.g. fly ash. Novel sulphur concretes are provided made from such sulphur cement and conventional natural or manufactured aggregates.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 6, 1981
    Inventor: Alan H. Vroom
  • Sulfur compounds and method of making same
    Patent number: 4290816
    Abstract: Elemental sulfur is reacted in a certain manner with at least first and second hydrocarbons to form an asphalt-like material.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 22, 1981
    Assignee: Southwest Research Institute
    Inventors: Allen C. Ludwig, John M. Dale, Henry F. Frazier
  • Vulcanization system for vulcanizable thiodiethanol elastomers
    Patent number: 4218559
    Abstract: The present invention relates in general to vulcanizable elastomers of thiodiethanol and, in particular, to the provision of a novel vulcanization system for vulcanizable elastomers of thiodiethanol, comprising sulfur and certain pyrazine compounds.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: August 19, 1980
    Assignee: American Cyanamid Company
    Inventors: Donald R. Maulding, Rudolf A. Behrens
  • Vulcanization system for thiodiethanol-based elastomers
    Patent number: 4202963
    Abstract: The present invention relates in general to sulfur-vulcanizable elastomers derived from thiodiethanol and, in particular to the provision of a novel vulcanization system therefor comprising sulfur and an aliphatic linear, branched chain of cyclic polyethyleneamine or a dissociable organic salt thereof.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: May 13, 1980
    Assignee: American Cyanamid Company
    Inventor: Rudolf A. Behrens
  • Process for the production of an aqueous dispersion of poly(organic-poly-sulfide-silicate) copolymer
    Patent number: 4197229
    Abstract: An alkali metal hydroxide, sulfur, and an oxidated silicon compound are mixed, then heated to just above the melting point of sulfur while agitating for 10 to 30 minutes, thereby producing an alkali metal polysulfide silicate; then it is added to an aqueous solution containing an emulsifying or dispersing agent and is reacted with a polysubstituted organic compound, thereby producing a poly(organic-polysulfide-silicate) copolymer.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: April 8, 1980
    Inventor: David H. Blount
  • Elemental sulfur having improved impact resistance
    Patent number: 4184890
    Abstract: Polysulfide-polyether and polysulfide-polyformal polymers having terminals inert to oxidative curing dissolve rapidly in molten elemental sulfur resulting in improved impact strength for the cooled solidified product.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: January 22, 1980
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi