Patents by Inventor Kamal Ateya

Kamal Ateya 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).

  • Compositions comprising a water-soluble metal complex dye, an oxyalklated amine sulphate ester and a dispersing agent
    Patent number: 4802887
    Abstract: A composition comprising:(a) 30 to 90% by weight of one or more water soluble anionic dyestuffs in metal complex form,(b) 0.5 to 20% by weight of one or more compounds of formula I ##STR1## in which R.sub.1 is C.sub.12-22 alkyl or C.sub.12-22 alkenyl; R.sub.2 is hydrogen or --SO.sub.3 M;m is 2, 3 or 4;n is 2, 3 or 4;p+p' is 10 to 30 inclusive, each of p and p' being at least 1; and M is a cation; and(c) 5 to 40% by weight of a dispersing agent.These compositions are suitable for dyeing of textile and leather substrates.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: February 7, 1989
    Assignee: Sandoz Ltd.
    Inventor: Kamal Ateya