Patents by Inventor Sarwan K. Kakar

Sarwan K. Kakar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Antistatic natural and synthetic textile materials which have been treated with salts of orthophosphoric or polyphosphoric acid
    Patent number: 4296165
    Abstract: Natural and synthetic textile materials and blends thereof are disclosed containing at least one water-soluble, neutral alkanolamine, ammonium or mixed alkanolamine and ammonium salt of a phosphoric acid wherein said acid is selected from the group consisting of orthophosphoric acid and polyphosphoric acid. Polyester-cotton fabrics are rendered antistatic by treatment with these ionic bonded salts in the proportion of about 0.5 to about 10 percent by weight based on the weight of the textile fabric.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: October 20, 1981
    Assignee: The Diversey Corporation
    Inventors: Sarwan K. Kakar, Frank R. Kappler, John J. Cramer
  • Method of fading blue jeans
    Patent number: 4218220
    Abstract: Evenly pre-faded blue jeans are obtained by subjecting the blue jeans to a washing cycle comprising (a) an initial wash with detergent and emulsifier, (b) a suitable intermediate rinsing operation, (c) a bleaching operation in which the garments are subjected to the simultaneous action of bleach and a fabric softener of the quaternary ammonium type, alone or with the addition of a suitable amount of detergent, (d) a further rinsing operation, and (e) an optional final treatment with fabric softener and laundry sour.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: August 19, 1980
    Assignee: BASF Wyandotte Corporation
    Inventors: Frank R. Kappler, John J. Cramer, Sarwan K. Kakar
  • Non-durable flame-repellent finish for synthetic fabrics and synthetic-cotton blends
    Patent number: 4208463
    Abstract: Compositions based upon monoammonium phosphate and/or diammonium phosphate together with monoethanolamine and/or diethanolamine are used to provide a flame-retardant finish to synthetic fabrics or synthetic-cotton blends. Good flame-retardant protection is obtained with a dry add-on of approximately 13 to 15 percent, and the fabric retains a good hand.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: June 17, 1980
    Assignee: BASF Wyandotte Corporation
    Inventors: Sarwan K. Kakar, John J. Cramer
  • Method of imparting nondurable soil release and soil repellency properties to textile materials
    Patent number: 4007305
    Abstract: Textile materials are treated with an alkaline aqueous medium having a pH value of 7.5-11 and containing 0.25-4% by weight of a dissolved water soluble hydrophilic soil release polymer having carboxylic acid groups and 0.05-1% by weight of a dispersed hydrophobic soil repellent fluorochemical. The soil release polymer and the soil repellent fluorochemical are deposited on the surfaces of the textile fibers and the resulting textile material is dried to impart the desired nondurable soil release and soil repellency properties. The aqueous medium also may contain polyvinylpyrrolidone to further improve the finish. In a preferred variant, the textile material is first contacted with an alkaline aqueous solution of the soil release polymer, and thereafter with an alkaline aqueous medium containing the dispersed soil repellent fluorochemical to reduce the tendency of the deposited soil release polymer to cover the deposited soil repellent fluorochemical molecules.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: February 8, 1977
    Assignee: BASF Wyandotte Corporation
    Inventors: Sarwan K. Kakar, Frank R. Kappler, Gilbert S. Gomes, John J. Cramer