Patents

A process for preparation of cellulose fractions

The invention relates to a process for preparation of cellulose fractions. In the process fractionation of cellulose into different molecular weight fractions is carried out by dissolving cellulose in lithium chloride/N,N-dimethyl acetamide solvent system and using water as a non solvent for regeneration of different molecular weight fractions and the different molecular weight fractions of cellulose.

Filing Date: 31-01-2001

Issue Date: 25-04-2008

Patent No: IN217903 [India]

Application No: 115/DEL/2001

Inventor(s): Biranchinarayan Tosh; Chowdhury Nath Saikia; Regional Research

Licensing Option: Laboratory willing to jointly develop technology with industrial partner.

Implementing institute: CSIR-North East Institute of Science and Technology [CSIR-NEIST]

Funding agency: Council of Scientific and Industrial Research (CSIR)

IPC Classification: C08B 30/00

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