IN315029: A novel melamine-chrome complex for leather processing and a process for the preparation thereof
Abstract
The invention provides a novel melamine-chrome complex comprising imine groups. It is essentially a formaldehyde free chromium complex consisting of a dialdehyde capable of performing rechroming and retanning in a single step. A process for preparing the said eco-benign complex is also provided. The complex is available in both solid as well as liquid form. When applied in leather processing, it confers thermal stability to hides/skins. It also helps in filling the empty regions within the fibre matrix, thereby providing fuller leather.
Filing Date:
01-04-2014
Issue Date:
28-06-2019
Applicant:
CSIR-Central Leather Research Institute (CSIR-CLRI), Chennai
Patent No:
IN315029
Application No:
0937DEL2014
Inventor(s):
Kalarical Janardhanan Sreeram, Selvam Sangeetha, Gladstone Christopher Jayakumar, Jonnalagadda Raghava Rao, Balachandran Unni Nair
IPC Classification:
C14C 3/20
Country:
India
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