The Organic Compound Is A Phosphorus Ester Or An Organic -s(=o)(=o)o- Compound (e.g., Phosphosulfurized Petroleum Mahogany Sulfonates, Etc.) Patents (Class 508/349)
  • Drilling fluids
    Patent number: 7614462
    Abstract: Drilling fluids, drilling lubricants for such drilling fluids, and methods of drilling wells, particularly oil and/or gas wells using such drilling fluids. The inclusion of lubricants affords lubrication in drilling fluids in which the lubricant compatibility and/or performance may be adversely affected by other components of the drilling fluid, particularly divalent cations such as calcium, formate salts or highly alkaline components such as alkali silicate.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: November 10, 2009
    Assignee: Croda International PLC
    Inventor: Jeanette Dixon
  • Drilling fluids
    Publication number: 20080202815
    Abstract: This invention relates to drilling fluids, to drilling lubricants for such drilling fluids and to methods of drilling wells, particularly oil and/or gas wells using such drilling fluids. In particular, the invention relates to the inclusion of lubricants which afford lubrication in drilling fluids in which the lubricant compatibility and/or performance may be adversely affected by other components of the drilling fluid, particularly divalent cations such as calcium, formate salts or highly alkaline components such as alkali silicate.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 28, 2008
    Applicant: Croda International Plc
    Inventor: Jeanette Dixon
  • Colloidal thio-phosphorous products derived from colloidal lime, their preparation and uses
    Patent number: 5985805
    Abstract: Novel colloidal calcium thio-phosphorous products are described which can be obtained by a process comprising adding at least one phosphorus sulphide to colloidal lime in the presence of solvent, then heating the mixture, with stirring, then eliminating the solvent. These products can be used as anti-wear and extreme pressure additives in lubricating oils.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 16, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Bruno Delfort, Maurice Born, Agnes Chive
  • Oil soluble complexes of phosphorus-containing acids useful as lubricating oil additives
    Patent number: 5773392
    Abstract: This invention provides an oil-soluble complex of an oil-insoluble phosphorus-containing acid and an alcohol. This complex is a useful antiwear additive in lubricating oils, particularly automatic transmission fluids.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: June 30, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Michael Gerald Romanelli, Ricardo Alfredo Bloch, Jack Ryer, Raymond Frederick Watts