Back to results
US 2006/0137103 A1Published application
Process for the preparation of bio-tanning agent
AssigneeCouncil of Scientific and Industrial Research
InventorsThanaikaivelan Palanisamy, Saravanabhavan Subramani, Jonalagadda Rao, Chandrasekaran Bangaru, Balachandran Nair, Ramasami Thirumalachari
Life of this patent
Estimating the term…
Abstract
The present invention provides a process for preparing a bio-tanning agent from collagenous source.
Claims6
A process for the preparation of bio-tanning agent, which comprises:
- i. treating a collagenous material in aqueous medium with an acid at a temperature in the range of 80-98° C. and at a pH not exceeding 3.0 for a period not less than 30 minutes to obtain a slurry followed by adjusting temperature of the slurry to a range of 20-40° C.,
- ii. adjusting pH of the slurry formed in step (i) to a range of 5.5-7.0 to obtain the bio-tanning agent in liquid form.
Dependencies are inferred from the claim text.