Patents

A process for preparation of liquid crystalline polyesters

The present invention provides a process for preparation of liquid crystalline polyesters of formula hydroxyphenylacetic acid and 4- hydroxybenzoic acid has been taken as a copolymer which give copolyesters of better melt processability and thermal stability with the expected nematic meso phase. Moreover, it is a cost effective process for the production of liquid crystalline copolyesters through this route.

Patent Assignee: Council of Scientific & Industrial Research (CSIR)

Patent No: IN232462 [India]

Application No: 1459/DEL/1999

Inventor(s): Vadakkethonippurathu Sivankutty Nair Prasad; Muthusamy Saminathan; Chennakkattu Krishna Sadasivan Pillai

Issue Date: 27-03-2009

Filing Date: 05-11-1999

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

Implementing institute: CSIR-National Institute for Interdisciplinary Science and Technology [CSIR-NIIST] 

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

IPC Classification: C09K 19/00

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