US PATENT SUBCLASS 132 / 204
.~.~.~ Relaxing or reducing agent followed by fixing or neutralizing agent (e.g., "permanent")

Current as of: June, 1999
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132 /   HD   TOILET

200  DF  METHODS {3}
202  DF  .~ Hair treatment by application of specific chemical composition {3}
203  DF  .~.~ For deformation, setting or holding (e.g., curling or waving) {3}
204.~.~.~ Relaxing or reducing agent followed by fixing or neutralizing agent (e.g., "permanent") {1}
205  DF  .~.~.~.~> Including specified treatment interval

DEFINITION

Classification: 132/204

Relaxing or reducing agent followed by fixing or neutralizing agent (e.g., "permanent"):

(under subclass 203) Process wherein a first composition is applied to break or weaken the disulfide bonds of the hair protein (keratin) and a second composition is subsequently applied to neutralize the first composition or cause the bonds to be reformed.