Patents by Inventor Richard L. Doerr

Richard L. Doerr 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).

  • Process for inhibiting crust formation in reduced dye baths
    Patent number: 4285695
    Abstract: An improved sodium hydrosulfite dye reducing composition is described for reducing vat or sulfur dye in aqueous dye bath solutions, comprised of sodium dithionite, at least 1 percent sodium sulfite by weight of sodium dithionite, and stabilized by alkali metal hydroxide, the improvement characterized by including in this composition an effective surface crust inhibiting amount of an anionic surfactant selected from the group consisting of alkyl sulfates, alkyl aryl phosphate esters, N-acyl-N-alkyl taurates, .alpha.-olefin sulfonates, alkyl aryl disulfonates, dodecylated oxydibenzene sulfonates, and mixtures thereof.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: August 25, 1981
    Assignee: Olin Corporation
    Inventors: Richard L. Doerr, Michael Scardera
  • Use of 2,4,4,4-tetrachlorobutyl acetate as a dye carrier for disperse dyes
    Patent number: 4226597
    Abstract: Disclosed is a method of dyeing hydrophobic textile fibers, particularly polyesters, with disperse dyes using 2,4,4,4-tetrachlorobutyl acetate as a dye carrier. Also disclosed are dye carrier compositions comprising the above chemical in combination with at least one emulsifier.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: October 7, 1980
    Assignee: Olin Corporation
    Inventor: Richard L. Doerr
  • Aqueous oxidizing bath composition for vat and sulfur dyes and a process for treating reduced dyes therewith
    Patent number: 4155709
    Abstract: A novel composition is described which is an aqueous oxidizing solution containing: (a) about 0.01 to about 10% by weight of an oxidant selected from the water-soluble iodate salts and the water-soluble bromate salts; (b) about 0.005% to about 5% by weight of a water-soluble vanadate salt; and (c) about 0.05 to about 10% of a water-soluble nitrate salt. An improved process for oxidizing vat or sulfur dyes is also described wherein the reduced form of the dye is oxidized by contact with the novel composition.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: May 22, 1979
    Assignee: Olin Corporation
    Inventor: Richard L. Doerr
  • Oxidation of vat or sulfur dyes with vanadate activated bromate or iodate
    Patent number: 4012192
    Abstract: An improved process for oxidizing vat or sulfur dyes is provided wherein the reduced form of the dye is oxidized by contact with an aqueous oxidizing agent containing in combination (a) an alkali metal, alkaline earth metal or ammonium bromate or iodate and (b) an alkali metal, alkaline earth metal or ammonium vanadate, at least one of which is an alkaline earth metal salt.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: March 15, 1977
    Assignee: Olin Corporation
    Inventor: Richard L. Doerr
  • 1-Phosphorosemicarbazides
    Patent number: 3992488
    Abstract: 1-Phosphorosemicarbazides having the formula ##EQU1## are effective and durable additives for reducing the combustibility of cotton fabrics to which they are applied.
    Type: Grant
    Filed: July 25, 1975
    Date of Patent: November 16, 1976
    Assignee: Olin Corporation
    Inventors: Richard J. Turley, Richard L. Doerr
  • Oxidation of vat and sulfur dyes with vanadate activated bromate or iodate
    Patent number: 3944382
    Abstract: An improved process for oxidizing vat or sulfur dyes is provided wherein the reduced form of the dye is oxidized by contact with an aqueous oxidizing solution comprising an alkali metal or ammonium vanadate and an oxidant comprising an alkali metal or ammonium bromate or iodate.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: March 16, 1976
    Assignee: Olin Corporation
    Inventor: Richard L. Doerr