Method of preparing pigment-oil compositions

  • Inventors:
  • Assignees: George Wilson Acheson
  • Publication Date: October 13, 1927
  • Publication Number: GB-265541-A


265,541. Acheson, G. W. Feb. 5, 1926, [Convention date]. Incorporating paint ingredients. - Pigmentoil compositions are made by forming a pasty pigment-oil-water emulsion, the oil being the dispersed phase, and adding oil gradually at a rate not substantially greater than that at which oil is absorbed, and working the mixture until separation of water occurs. Pigments in finely subdivided form are first incorporated with water and a small proportion of oil added. " Deflocculated " pigments such as are obtained by working pigments with tannin, starchy materials &c. and water may be used. The balance of the oil in the final paste is then gradually added. The paste may be compounded with oils or other vehicles to produce paints &e. or may be dried by the method described in U.S. Specification 1,431,079. The term " oil " includes neutral solvents or diluents, immiscible with water, commonly used in paints &c. and among suitable pigments are the carbon blacks and chrome yellow. Reference has been directed by the Comptroller to Specification 27312/07.




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