Patents by Inventor Richard C. Reichel

Richard C. Reichel 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).

  • Dye compositions
    Patent number: 4229177
    Abstract: This invention discloses compositions and methods for dyeing natural proteinaceous and synthetic polyamide fibers, particularly wool, silk and nylons, utilizing dye assistants effective with both acid and disperse dyes, such assistants being synergistic combinations of (a) dicyclopentenyl alcohol with (b) certain other materials, none of the components in either (a) or (b) being, in themselves, effective dye assistants for both acid and disperse dyes.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: October 21, 1980
    Assignee: Velsicol Chemical Corporation
    Inventors: Remus I. Lazar, Richard C. Reichel
  • Dye compositions
    Patent number: 4229178
    Abstract: This invention discloses compositions and methods for dyeing natural proteinaceous and synthetic polyamide fibers, particularly wool, silk and nylons, utilizing dye assistants effective both with acid and disperse dyes, such assistants being combinations of a mixture of lower esters of chlorinated benzoic acids with a mixture of lower alkyl esters of toluic and benzoic acids.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: October 21, 1980
    Assignee: Velsicol Chemical Corporation
    Inventors: Remus I. Lazar, Richard C. Reichel
  • Dye compositions
    Patent number: 4221563
    Abstract: This invention discloses compositions and methods for dyeing natural proteinaceous and synthetic polyamide fibers, particularly wool, silk and nylons, utilizing acid dyes and dye assistants comprising mixtures of butyl benzoate either with p-benzyl phenol or with a mixture of methyl toluates and methyl benzoate.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: September 9, 1980
    Assignee: Velsicol Chemical Corporation
    Inventors: Remus I. Lazar, Richard C. Reichel
  • Dye compositions containing a combination of dye assistants which includes a mixture of lower alkyl esters of aromatic carboxylic acids
    Patent number: 4221566
    Abstract: This invention discloses compositions and methods for dyeing natural proteinaceous and synthetic polyamide fibers, particularly wool, silk and nylons, utilizing dye assistants effective with both acid and disperse dyes, such assistants being a synergistic combination of (a) a mixture of lower alkyl esters of toluic and benzoic acids with (b) certain other materials, none of the components in either (a) or (b) being, in themselves, effective dye assistants for both acid and disperse dyes.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: September 9, 1980
    Assignee: Velsicol Chemical Corporation
    Inventors: Remus I. Lazar, Richard C. Reichel
  • Dye compositions containing a mixture of dibenzyl ether and a cyclic alkyl carbonate as dye assistants
    Patent number: 4209298
    Abstract: Compositions and methods for dyeing natural proteinaceous and synthetic polyamide fibers, particularly wool, silk and nylons, utilizing dye assistants effective with both acid and disperse dyes, such assistants being a combination of (a) dibenzyl ether with (b) a compound of the formula: ##STR1## wherein x is selected from the group consisting of hydrogen, methyl and ethyl.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: June 24, 1980
    Assignee: Velsicol Chemical Corporation
    Inventors: Remus I. Lazar, Richard C. Reichel