Permanent waving of human hair by means of crosslinking urethane and/or hydroxamate derived from reactive acrylic resins and adipodinitrile carbonate
AssigneeAtlantic Richfield Company
InventorsDonald H. Russell, Charles J. Kremer
Life of this patent
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Abstract
Compounds suitable for use in waving human hair comprised of a film-forming resin containing pendant hydroxyl, amine, and/or thiol groups; a cyclic nitrile carbonate of the formula ##STR1## WHEREIN R is an organic radical having 1 to about 200,000 carbon atoms, X is ##STR2## and n is at least 2; and a flexibilizing adhesion promoter; and optionally a catalyst. The composition is preferably dissolved in a non-aqueous solvent. Hair is waved by contacting the hair with the composition and drying it at room or elevated temperatures.
Claims34
A composition useful for waving hair comprising
- a. at least one hydroxyl, amine, or thiol group-containing acrylic or methacrylic film-forming resin having a number average molecular weight of about 500 to 500,000 or polyol, polyamine or polythiol resin forming precursor containing 1 to 30 carbon atoms,
- b. a cyclic nitrile compound of the formula:
- ##STR14## wherein R is an organic radical free of nucleophilic groups and having 1 to about 200,000 carbon atoms, X is a member selected from the group consisting of ##STR15## and n is at least 2, and c. a flexibilizing adhesion promoter.
A composition useful for waving hair comprising
- a. a film-forming polyacrylate having pendant groups which contain reactive hydrogens,
- b. a cyclic nitrile carbonate of the formula ##STR18## wherein R is an organic radical free of nucleophilic groups and having 1 to 10 carbon atoms, and n is 2 to 4,
- c. a flexibilizing adhesion promoter selected from the class consisting of quaternary vinyl pyrrolidone and water-soluble polyamides containing secondary amine groups and epichlorohydrin, and
- d. a catalyst.
A hair waving solution comprised of 3 to 6% of the composition of claim 21 and 97 to 94% of an organic solvent selected from the class consisting of methylene chloride, chlorofluoro alkanes containing up to 2 carbon atoms, and mixtures of these.
Dependencies are inferred from the claim text.