Diketopyrrolopyrrole pigments

Details Diketopyrrolopyrrole pigments Diketopyrrolopyrrole pigments

2006-02-21

2006-02-21

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S306100, C548S306400, C524S093000, C106S031780, C106S494000, C106S498000

Reexamination Certificate

active

07002021

ABSTRACT:
Diketopyrrolopyrroles of the formula (I):whereinR1, R2, R3and R4independently of one another are a C1–C4alkyl radical or a substituted or unsubstituted phenyl radical, wherein the phenyl radical can be substituted by 1, 2, 3 or 4 substituents from the group C1–C4alkyl, C1–C4alkoxy, CN, F, Cl, Br, NO2, CF3, S—C1–C4alkyl, phenyl or (C1–C2)alkylenephenyl,with the proviso that at least one of the radicals, R1, R2, R3, or R4, is one of the stated substituted or unsubstituted phenyl radicals.

REFERENCES:
patent: 4415685 (1983-11-01), Iqbal et al.
patent: 4490542 (1984-12-01), Iqbal et al.
patent: 4579949 (1986-04-01), Rochat et al.
patent: 4585878 (1986-04-01), Jost et al.
patent: 4613669 (1986-09-01), Cassar et al.
patent: 4666455 (1987-05-01), Jost et al.
patent: 4931566 (1990-06-01), Surber et al.
patent: 5560760 (1996-10-01), Toeppen
patent: 5817832 (1998-10-01), Wallquist et al.
patent: 6207697 (2001-03-01), Han et al.
patent: 6566519 (2003-05-01), Nickel et al.
patent: 6723138 (2004-04-01), Nickel et al.
patent: 0061426 (1982-09-01), None
patent: 0094911 (1983-11-01), None
patent: 0098808 (1984-01-01), None
patent: 0133156 (1985-02-01), None
patent: 0755933 (1997-01-01), None
patent: WO 0034248 (2000-06-01), None
PCT ISR for PCT/EP 03/05968, Sep. 24, 2003.
English Translation of PCT IPER for PCT/EP 03/05968, mailed Mar. 20, 2005.

Affiliated with

Also associated with

Rating

Diketopyrrolopyrrole pigments does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diketopyrrolopyrrole pigments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diketopyrrolopyrrole pigments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3662017