Azo dyes, a process for their preparation and their use in...

Details Azo dyes, a process for their preparation and their use in... Azo dyes, a process for their preparation and their use in...

2006-04-18

2006-04-18

Einsmann, Margaret (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

C008S662000, C008S922000, C534S770000, C534S838000, C534S885000

Reexamination Certificate

active

07029502

ABSTRACT:
The present invention relates to an azo dye of formulawherein D is the radical of a diazo component of the benzene, naphthalene, diphenyl, thiophene, benzothiazole, benzisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, anthraquinone, naphthalic acid imide, chromone, phthalimide or diphenylene oxide series, R1is an unsubstituted or substituted aryl radical and R2is an unsubstituted or substituted aryl radical, with the exception of the compounds of formulae (1a) and (1b)to a process for its preparation and to its use in a process for the production of mass-colored plastics or polymeric color particles, and in the dyeing or printing of semi-synthetic or synthetic hydrophobic fiber materials.

REFERENCES:
patent: 3853895 (1974-12-01), Lamm et al.
patent: 3959250 (1976-05-01), Heinrich et al.
patent: 4146535 (1979-03-01), Dehnert et al.
patent: 4150943 (1979-04-01), Dehnert et al.
patent: 4515716 (1985-05-01), Niwa et al.
patent: 4774324 (1988-09-01), Loeffler et al.
patent: 5623060 (1997-04-01), Lamm et al.
patent: 5630851 (1997-05-01), Jordine et al.
patent: 2718619 (1978-11-01), None
patent: 2718883 (1978-11-01), None
patent: 4329915 (1995-03-01), None
patent: 0135131 (1985-03-01), None
patent: 0658605 (1995-06-01), None
patent: 2329724 (1977-05-01), None
patent: 1598893 (1981-09-01), None
English language abstract for DE 2718883 (1978).

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