Tanning agent and process

Details Tanning agent and process Tanning agent and process

C - Chemistry, Metallurgy

14

C

8/67

C14C 3/04 (2006.01)

Patent

CA 1321685

CASE 424 ABSTRACT OF THE DISCLOSURE TANNING AGENT AND PROCESS A leather tanning agent for use as a sole tannage or with another includes Al (III) ions, Ti (IV) ions and an organic masking agent in specific proportions. The ratio of Ti:Al expressed as metal oxides Ti02:Al203 on a weight basis is from 0.6:1 to 2:1 and the amount of masking agent is from 0.1 to 0.4 mole per mole of total metal oxides. Preferably SO4 ions are present. Other metal tanning agents such as zirconium salts can be incorporated. The tanning agent finds wide use and has an increased stability.

589225

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