Patents by Inventor Alexander Halasz

Alexander Halasz 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).

  • Dyeing keratin fibers with 2-substituted m-toluenediamines
    Patent number: 4196145
    Abstract: Oxidation dye compositions particularly useful for dyeing human hair containing as the meta component compounds of the formula: ##STR1## or their non-toxic salts, wherein R is alkyl, hydroxyalkyl, phenylalkyl, phenylsulfonyls, alkylsulfonyls or cyanoalkyl.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: April 1, 1980
    Assignee: Clairol Incorporated
    Inventors: Alexander Halasz, David Cohen
  • Dyeing keratin fibers with 2-substituted m-toluenediamines
    Patent number: 4092102
    Abstract: Oxidation dye compositions particularly useful for dyeing human hair containing as the meta component compounds of the formula: ##STR1## or their non-toxic salts, wherein R is alkyl, hydroxyalkyl, phenylalkyl, phenylsulfonyls, alkylsulfonyls or cyanoalkyl.
    Type: Grant
    Filed: August 20, 1976
    Date of Patent: May 30, 1978
    Assignee: Clairol Incorporated
    Inventors: Alexander Halasz, David Cohen
  • Hydroxyalkyl-amino nitrodiphenylamine compounds useful as hair dyes
    Patent number: 4021486
    Abstract: Compounds useful as hair dyes of the formula: ##STR1## in which R.sup.5 is OH, -NH(lower hydroxyalkyl), -N(lower hydroxyalkyl).sub.2 or -O lower alkyl.
    Type: Grant
    Filed: January 14, 1975
    Date of Patent: May 3, 1977
    Assignee: Clairol Incorporated
    Inventors: Alexander Halasz, David Cohen
  • Oxidative hair dye compositions containing N-substituted o-phenylenediamines and method for their use
    Patent number: 3981677
    Abstract: Hair dyeing compositions are disclosed which contain an N-substituted o-phenylenediamine, the N-substituent being an alkyl, alkoxyalkyl, hydroxyalkyl, alkylaminoalkyl, dialkylaminoalkyl, phenyl or substituted phenyl. These give reddish shades by purely oxidative means, and the shades are fast to wet treatments and are long-wearing. Also disclosed are methods of dyeing hair with these compositions, as well as certain novel compounds suitable for the purpose, e.g., N-(alkoxyalkyl)-o-phenylenediamines.
    Type: Grant
    Filed: January 2, 1974
    Date of Patent: September 21, 1976
    Assignee: Clairol Incorporated
    Inventors: Alexander Halasz, Frederick Brody, deceased, by Richard Newman, executor
  • Hair dye compositions containing nitrodiphenylamine dyes and method for dyeing hair therewith
    Patent number: 3950127
    Abstract: A hair dye composition comprising a fluid direct-dye hair dye vehicle suitable for application to human hair containing a tinctorially effective amount of a hair dye of formula: ##SPC1##In which:A. R is an electron donor functional group;B. y is a whole number from 0 to 1 inclusive; andC. x is a whole number from 1 to 2 inclusive.Also describes a method of dyeing hair using these compositions and further describes certain novel nitrodiphenylamine dyes.
    Type: Grant
    Filed: December 26, 1972
    Date of Patent: April 13, 1976
    Assignee: Clairol Incorporated
    Inventors: Alexander Halasz, David Cohen