Atom Other Than N, C, H, Or Oxygen Patents (Class 524/225)
  • Fluorochemicals and fibrous substrates treated therewith: compositions of cationic and non-ionic fluorochemicals
    Patent number: 4566981
    Abstract: Cationic and non-ionic fluorochemicals, mixtures of cationic and non-ionic fluorochemicals, blends of the mixtures with fluorochemical poly(oxyalkylenes), and compositions of the fluorochemicals with hydrocarbon nonionic surfactants are provided. These fluorochemicals and compositions, in dispersions, emulsions and microemulsions, may be applied to porous fibrous substrates to give oil and water repellancy and soil resistance.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: January 28, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard D. Howells
  • Textile treatments
    Patent number: 4401780
    Abstract: Textiles are rendered water and oil resistant by contacting them with a composition containing water-insoluble fluoroaliphatic radical- and aliphatic chlorine-containing ester, water-insoluble fluoroaliphatic radical-containing polymer, and water-insoluble fluoroaliphatic radical-containing carbonylimino or imine compound.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: August 30, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Cynthia L. Steel
  • Viscosity-stabilized aqueous solutions
    Patent number: 4317758
    Abstract: Selected sulfur-containing compounds function as solution viscosity stabilizers in aqueous compositions comprising acrylamide polymers containing a redox couple or components which can produce a redox couple in the presence of the solution. The aqueous compositions are useful in post-primary oil recovery involving the use of thickened fluids as mobility buffers and mobility control agents.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: March 2, 1982
    Assignee: Phillips Petroleum Company
    Inventor: Donald D. Bruning