Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2007-03-20
2007-03-20
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S428000, C008S429000, C008S664000, C132S202000, C132S208000, C548S335500
Reexamination Certificate
active
10492325
ABSTRACT:
The present invention relates to a method of coloring keratin-containing fibres, especially human hair, in which method a compound of formula (I), wherein R is hydroxy or NHR1, R1being hydrogen or C1–C4alkyl, and B is an aromatic or heterocyclic ring, is diazotised, and the resulting diazonium salt is applied at a pH of from 2 to 5 to the material being colored and then, by means of increasing the pH to from 7 to 12, is fixed on the material in the form of an oligomeric or polymeric colorant
REFERENCES:
patent: 4165967 (1979-08-01), Bühler et al.
patent: 2003/0066143 (2003-04-01), Möckli
patent: 2003/0177591 (2003-09-01), Möckli
patent: 2004/0049020 (2004-03-01), Möckli
patent: 2004/0083560 (2004-05-01), Adam et al.
patent: 630254 (1982-06-01), None
patent: 1906978 (1970-07-01), None
patent: 2739227 (1978-03-01), None
patent: 3009833 (1981-10-01), None
patent: 198 42 071 (1999-09-01), None
patent: 2794644 (2000-12-01), None
patent: 00/15184 (2000-03-01), None
English Abstract of the DE 19842071 A1.
Derwent Abstract 32,979Q for DE 1906978 (1970).
Chem. Abstract 110:194540 for Textilveredlung, (1989), vol. 24, No. 2, pp. 45-47.
Derwent Abstract 57359 E/28 for CH 630254 (1982).
Derwent Abstract 73865 D/41 for DE 3009833 (1981).
Derwent Abstract 2001-228389/24 for FR 2794644 (2000).
Adam Jean-Marie
Yousaf Taher
Elhilo Eisa
Mansfield Kevin T.
Wood Mervin G.
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