Permanent waving with silicones

Details Permanent waving with silicones Permanent waving with silicones

1992-10-13

1994-04-05

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Polymer from ethylenic monomers only

132204, A61K 709, A45D 704

Patent

active

053002857

ABSTRACT:
A process for permanent waving of hair by a reaction in which cystine bridges are reduced to cysteine, the hair reshaped, and the reaction reversed. The improvement in the process resides in the step of reversing the reaction by applying to hair a composition which includes a vinyl functional silicone, a solvent, and a free radical photoinitiator. The free radical photoinitiator is a compound which undergoes intramolecular photocleavage and contains the acetophenone chromophore, such as dimethoxyphenylacetophenone; diethoxyacetophenone; hydroxydimethylacetophenone; 1-benzoylcyclohexanol; 1-phenyl-1,2-propanedione-2-O-benzoyl oxime; and 2-hydroxy-2-methyl-1-phenylpropan-1-one. Both cyclic and linear vinyl functional silicones can be employed. Permanent hair waving neutralizer compositions are also described.

REFERENCES:
patent: 3987127 (1976-10-01), Dickie
patent: 4401500 (1983-08-01), Hamada
patent: 4551634 (1984-05-01), Hatanaka
patent: 4558147 (1985-12-01), Eckberg
patent: 4560554 (1985-12-01), Kubo
patent: 4585669 (1986-04-01), Eckberg
patent: 4798722 (1989-01-01), Edman
patent: 5002762 (1991-03-01), Bolich
patent: 5032460 (1991-07-01), Kantner
patent: 5045310 (1991-09-01), Halloran
patent: 5049377 (1991-09-01), Lamb

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