Patents Represented by Attorney Edward K. Welch

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  • Hot oil process for producing isocyanato organosilanes
    Patent number: 6008396
    Abstract: Disclosed is a process for making isocyanatoorganosilane by adding a carbamatoorganosilane of the general formula to an inert liquid medium and holding the mixture thus formed at a temperature and pressure effective to convert said carbamatoorganosilane to isocyanatoorganosilane.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: December 28, 1999
    Assignee: OSI Specialties, Inc.
    Inventors: Robert E. Sheridan, Kenneth W. Hartman
  • Aromatic and aliphatic sulfonates and properties and applications thereof
    Patent number: 5919975
    Abstract: The present invention is directed to novel alkyl glyceryl ether disulfonate compositions (ADEDS), alkylphenol polyethoxy sulfate-sulfonates, and ethoxylated alkylphenol sulfonates, and novel methods of preparation and uses thereof.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 6, 1999
    Assignee: Witco Corporation
    Inventor: Khalid Rasheed
  • Process for crosslinking thermoplastic polymers and crosslinking system used therein
    Patent number: 5856412
    Abstract: A crosslinking system which includes a 1,2,4-trioxacycloheptane and a crosslink-promoting polyfunctional ethylenically unsaturated compound. This system is employed in a process of crosslinking a thermoplastic polymer. Preferred polymers, useful in this process, include ethylene homopolymers and copolymers.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: January 5, 1999
    Assignee: Witco Corporation
    Inventors: Lawrence A. Bock, Roger N. Lewis
  • Dry foamable composition and uses thereof
    Patent number: 5840210
    Abstract: Disclosed are dry particulate compositions containing an anionic sulfonate or sulfate surfactant, fatty mono- or di-ethanolamide, alcohol, sugar and maltodextrin. The dry compositions readily disperse in water to form formulations which can form voluminous, stable, environmentally benign foams useful, for instance, in marking outdoor areas.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: November 24, 1998
    Assignee: Witco Corporation
    Inventor: Sadanand Memula