VIVAN Life Sciences has been Published for Patent : WO2022269335A1 (A PROCESS FOR PREPARATION OF ALICYCLIC ACID DIANHYDRIDE)

We are delighted to announce that,
Invention by VIVAN Life Sciences, has been published for Patent: WO2022269335A1
(A PROCESS FOR PREPARATION OF ALICYCLIC ACID DIANHYDRIDE)
 
We hereby Congratulate our Principal Scientific Manager, Dr. Chikkam srinivasa rao, Ph.D, for all his laudable efforts in securing the same. Wishing him many more successes in the coming time.

The uniqueness of this outcome is, this is first of its kind in Dianhydride space from INDIA.
Congratulations to all VIVANians.
WO2022269335A1
A PROCESS FOR PREPARATION OF ALICYCLIC ACID DIANHYDRIDE

Abstract
The present invention depicts a method for synthesis of alicyclic acid dianhydride in simpler and economic manner. The process has advantages of an economical production method without using a catalyst, safe operation, high yield and most importantly purification under mild reaction conditions and high purity of product and the method is suitable in large scale industry.
 
Elaboration:
The present invention is a precursor of 2,3,5-tricarboxycyclopentylacetic acid-1,4: 2,3-dianhydride that is useful as a raw material for alicyclic polyimides used in the field of electronic materials and the like. The present invention relates to a novel process for producing 2,3,5-tricarboxycyclopentylacetic acid.
In general, polyimide resins are widely used as electronic materials such as protective materials, insulating materials, and color filters in liquid crystal display elements and semiconductors because of their high mechanical strength, heat resistance, insulation, and solvent resistance. Yes. Recently, the use as an optical communication material such as an optical waveguide material is also expected.
In recent years, the fields of electronic materials and optical communication materials have been remarkably developed, and correspondingly, the polyimide resin material used is required to have higher and higher properties. That is, there has been a demand for a polyimide resin material that not only has excellent heat resistance and solvent resistance, but also has a number of performances depending on the application