Patents by Inventor Max A. Weaver

Max A. Weaver 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).

  • Phenyl-azo-aniline dyes
    Patent number: 3980636
    Abstract: Azo compounds having the formula ##SPC1##In which X and Y are hydrogen or a substituent, R.sup.1 is alkyl or R.sup.4 , R.sup.2 is hydrogen, alkyl or alkoxy, R.sup.3 is hydrogen or alkyl, and R.sup.4 is aryl, cyclohexyl, alkoxy, benzyl, 2-furyl or --R.sup.5 --O--Z in which R.sup.5 is alkylene and Z is aryl. The compounds are useful for dyeing polyester fibers and exhibit good dyeability, fastness to light and resistance to sublimation.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: September 14, 1976
    Assignee: Eastman Kodak Company
    Inventors: Max A. Weaver, Clarence A. Coates, Jr.
  • Phenyl-azo-tetrahydroquinoline azo compounds
    Patent number: 3951942
    Abstract: Azo compounds especially useful for dyeing polyamide fibers on which the compounds exhibit improved fastness and dyeability properties contain a phenyl diazo component having a substituent in the 4-position and hydrogen, chlorine or bromine in the 2-position, and a tetramethyl substituted tetrahydroquinoline coupling component.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: April 20, 1976
    Assignee: The University of Delaware
    Inventors: Max A. Weaver, James M. Straley, Clarence A. Coates, Jr.
  • Monoazo compounds from 3-aminobenzisothiazoles and substituted .alpha.-naphthylamine couplers
    Patent number: 3943121
    Abstract: Monoazo compounds produce fast blue to green shades on polyester, nylon and cellulose acetate fibers and consist of a 2,1-benzisothiazole-3-yl diazo component and an .alpha.-naphthylamine coupling component, the nitrogen atom of which is monosubstituted with a cycloalkyl, aryl or substituted alkyl group.
    Type: Grant
    Filed: March 19, 1974
    Date of Patent: March 9, 1976
    Assignee: Eastman Kodak Company
    Inventors: Ronald J. Maner, Max A. Weaver