Process and product of optical brightening with quaternized benz

Details Process and product of optical brightening with quaternized benz Process and product of optical brightening with quaternized benz

1975-10-02

1977-03-01

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8177AB, 2603092, D06P 138, C07D23512, D06P 370

Patent

active

040099946

ABSTRACT:
The invention relates to new quaternized benzofuranyl-benzimidazole derivatives which can be prepared by known methods. Said compounds are useful as optical brighteners for organic material.

REFERENCES:
patent: 3103518 (1963-09-01), Duennenberger
patent: 3322784 (1967-05-01), Mohr et al.
patent: 3497525 (1970-02-01), Harnisch et al.
patent: 3501490 (1970-03-01), Maeder et al.
patent: 3590047 (1971-06-01), Shen et al.
patent: 3637734 (1972-01-01), Harnisch et al.
patent: 3658833 (1972-04-01), Kabas et al.
patent: 3772323 (1973-11-01), Schlaepfer et al.
patent: 3940417 (1976-02-01), Schlaepfer

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