using lignin derivatives, e.g. sulfate liquor

Full Title

Tanning; Compositions for tanning > Chemical tanning > by organic agents > using lignin derivatives, e.g. sulfate liquor

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

SKINS; HIDES; PELTS OR LEATHER

Subclass:

TREATING SKINS, HIDES OR LEATHER WITH CHEMICALS, ENZYMES OR MICROORGANISMS, e.g. TANNING, IMPREGNATING OR FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING