Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-07-16
1978-07-11
Warren, Charles F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260208, 106288Q, C09B 4300, C09B 4312
Patent
active
041001575
ABSTRACT:
The disazo pigment of the formula ##STR1## in the .beta.-modification thereof, whose X-ray diffraction pattern at an interplanar spacing of 3.33 A.degree. shows a line of very strong intensity, at 5.38 and 8.33 A.degree. lines of strong intensity, at 3.74, 4.24, 4.68, 4.94, 5.18 and 8.70 A.degree. lines of medium intensity, at 4.05, 4.37, 6.33 and 12.6 A.degree. lines of medium to faint intensity, at 3.50, 3.49, 5.65, 6.09, 6.71, 10.6 and 11.5 A.degree. lines of faint intensity.
The .beta.-modified pigment is a brilliant yellowish red color and may be used to color high molecular weight organic materials such as polycarbonates, polyvinyl chloride and polypropylene.
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patent: 3562249 (1971-02-01), Schnabel et al.
patent: 3642768 (1972-02-01), Ribka
Muller Paul
Muller Willy
Cavalieri Vincent J.
Ciba-Geigy Corporation
Warren Charles F.
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