Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1975-07-08
1978-02-14
Meyers, Albert T.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
2603407, 544 92, D06P 100, D06P 300, C07D26500, C07D27300
Patent
active
040736148
ABSTRACT:
A mixture of a triphenylmethane compound represented by the formula (Ia) ##STR1## AND A TRIPHENYLMETHANE COMPOUND REPRESENTED BY THE FORMULA (Ib) ##STR2## WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and X are as defined hereinafter, useful as a color former.
REFERENCES:
patent: 3006917 (1961-10-01), Seeger
patent: 3244549 (1966-04-01), Farnham et al.
patent: 3684549 (1972-08-01), Shank
patent: 3967835 (1976-07-01), Ozutsumi et al.
Miyazawa Yoshihide
Ozutsumi Minoru
Yamaguchi Masahiko
Hodogaya Chemical Co. Ltd.
Meyers Albert T.
Robinson D. W.
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