Use of at least one ninhydrin derivative for dyeing

Details Use of at least one ninhydrin derivative for dyeing Use of at least one ninhydrin derivative for dyeing

2007-02-27

2007-02-27

Elhilo, Eisa (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

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

Reexamination Certificate

active

10898245

ABSTRACT:
A composition comprising, in a medium that is suitable for dyeing, at least one ninhydrin derivative chosen from compounds of formula (I) and tautomers thereof:wherein:A represents a fused or non-fused, at least 6-membered aromatic mono- or polycyclic group, possibly comprising at least one hetero atom chosen from nitrogen, oxygen, sulphur, and phosphorus atoms, a dyeing process using the composition, and a multi-component coloring agent comprising the composition.

REFERENCES:
patent: 43 17 855 (1994-12-01), None
patent: 4317855 (1994-12-01), None
patent: 19717222 (1998-10-01), None
patent: 19745355 (1999-04-01), None
patent: 19845481 (2000-04-01), None
English Abstract of the Patent No. DE 4317855 A1.
STIC Search Report (Aug. 4, 2006).
Database WPI, Derwent Publications Ltd., London, GB; AN 1973-22659U, XP002285499.
English language Derwent Abstract of DE 43 17 855 A, Dec. 1, 1994.
D. Hauze et al., “New Reagents for the Development of Fingerprints” Almog, Springe, ed.,Proceedings of the International Symposium of Fingerprint Detection and Identification, Ne'urim, Israel, 1995, 119-123.
R. Hark et al., “Novel Approaches Toward Ninhydrin Analogs”,Tetrahedron Lett. 1994, 35, 7719-7722.
R. Gleiter et al., “1,2,3,5,6,7-s-Hydrindacenehexone and 1,2,3,6,7,8-Pyrenehexone-Two New Strong Acceptors,”Ang. Chem., Int. Ed. Eng. 1980, 19, 715-716.
English Language Derwent Abstract of DE 19845481 A1.
English Language Derwent Abstract of DE 19745355 A1.
English Language Derwent Abstract of DE 19717222 A1.

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