Permanent waving of human hair by means of crosslinking urethane

Details Permanent waving of human hair by means of crosslinking urethane Permanent waving of human hair by means of crosslinking urethane

1976-04-01

1977-09-20

McNeill, G.E.

Toilet

Nail device

Compound tools

424 71, A45D 700

Patent

active

040490076

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.

REFERENCES:
patent: 3577518 (1971-05-01), Shepherd
patent: 3741723 (1973-06-01), Kalopissis
patent: 3954960 (1976-05-01), Valan

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