Patents Assigned to Sulphur Development Institute of Canada (SUDIC)
  • Freeze/thaw durable sulphur compositions
    Patent number: 4426456
    Abstract: Sulphur compositions, particularly sulphur concretes, mortars and coatings, comprising a sulphur component and a particulate mineral aggregate in which the aggregate is bonded together in a matrix of the sulphur component having a plurality of fine entrained cells, particularly substantially spherical gas cells, uniformly dispersed throughout the matrix, and displaying improved durability under cyclical freezing and thawing.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: January 17, 1984
    Assignee: Sulphur Development Institute of Canada (SUDIC)
    Inventors: Jack E. Gillott, Ian J. Jordaan, Robert E. Loov, Nigel G. Shrive, Michael E. D. Raymont
  • Fiber reinforced sulphur concretes
    Patent number: 4426458
    Abstract: The inclusion of fibre elements in a sulphur/mineral aggregate composition, for example, a sulphur concrete or mortar, improves the fracture toughness of the composition and retards crack propagation.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: January 17, 1984
    Assignee: Sulphur Development Institute of Canada (SUDIC)
    Inventor: Raymond T. Woodhams
  • Sulphur-bituminous compositions
    Patent number: 4154619
    Abstract: A small amount of an organosiloxane polymer stabilizes an emulsion of sulphur and a bituminous material in which the bituminous material is a continuous phase and the sulphur is a dispersed phase; the stabilized emulsion serves as a binder for mineral aggregates in the manufacture of paving mixtures.
    Type: Grant
    Filed: June 28, 1977
    Date of Patent: May 15, 1979
    Assignee: Sulphur Development Institute of Canada (SUDIC)
    Inventor: Frank E. Pronk