Crystal modification of C.I. Pigment Red 53:2 (.delta.-phase)

Details Crystal modification of C.I. Pigment Red 53:2 (.delta.-phase) Crystal modification of C.I. Pigment Red 53:2 (.delta.-phase)

1999-06-21

2000-11-14

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106496, 534575, C09B 6710, C09B 6720, C09B 6748

Patent

active

061464554

ABSTRACT:
The invention relates to a novel crystal modification (.delta.-modification) of C.I. Pigment Red 53:2 of the formula (1) ##STR1## having the following characteristic reflections in the X-ray powder diffraction pattern:

REFERENCES:
patent: 4719292 (1988-01-01), Schui et al.
patent: 5266110 (1993-11-01), Rieper et al.
European Search Report.
Patent Abstracts of Japan & JP 10231438 Sep. 02, 1998 (Dainippon Ink & Chem Inc.).

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