Patent Interference No. 103,548
H2
HO
H2
HO N
(C2-C4)
· Konrad claim 4 (i.e., the presumed prior art) reads:
4. Hair dyes comprising oxidative dye precursors in a carrier, wherein indolines, or
salts of indolines, of formula I:
R3
R4O
R2 (I)
R5O N
R1
in which R1, R2, R3, R4, and R5 independently of one another represent hydrogen or
C1-4 alkyl groups, or R4 and R5 together with the oxygen atoms to which they are
attached may represent an alkylenedioxy group containing 1 to 4 carbon atoms are
present in a quantity of 0.1 to 20 millimoles per 100g of hair dye as oxidation dye
precursors and the carrier is a gel containing 1 to 20% by weight of a soap or an oil-
in-water emulsion containing 1 to 25% by weight of a fatty component and 0.5 to
30% by weight of an emulsifier from the group of anionic, nonionic, cationic, or
ampholytic surfactants.
· Konrad claims
· the use of indolines, or salts of indolines, corresponding to formula I:
16
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