Use of ninhydrin derivatives bearing an unsaturated system...

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

Reexamination Certificate

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C008S406000, C008S407000, C008S410000, C008S411000, C008S421000, C008S437000, C008S607000, C568S327000

Reexamination Certificate

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10898228

ABSTRACT:
The invention relates to the use for of compositions dyeing keratin materials containing, in a medium that is suitable for dyeing, at least one compound of formula (I)in which X and Y, independently of one another, are chosen from a CH group and a nitrogen atom, R is chosen from aromatic mono- or poly-cyclic groups with fused or non-fused rings, wherein the groups have at least 5 members and optionally comprise at least one hetero atom chosen from nitrogen, oxygen, sulphur and phosphorus. Processes and kits using these compositions are also disclosed.

REFERENCES:
patent: 43 17 855 (1994-12-01), None
patent: 4317855 (1994-12-01), None
patent: 197 17 222 (1998-10-01), None
patent: 197 45 355 (1999-04-01), None
patent: 198 45 481 (2000-04-01), None
English Abstract of the Patent No. DE 4317855 A1.
STIC Search Report (Aug. 4, 2006).
Hauze, et al. “New Reagents for the Development of Fingerprints”; Jun. 26-30, 1995, Ne'urim, Israel; Hemed Press, 1995, 119-123.
Database WPI, Derwent Publications Ltd., London, GB; AN 1973-22659U, XP002285499.
English language Derwent Abstract of DE 43 17 855 A, Dec. 1, 1994.

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