Patent · US Active

Process for the production of polyacrylonitrile

US11192966B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

Roopali Rai · Savanuru, IN
Stephen Pask · Dormagen, DE
Susanta Mitra · Bengaluru, IN
Abdulsattar Dawood · Kodungallur, IN

Key dates

Filing date	Nov 28, 2017
Grant date	Dec 7, 2021
Priority date	—
Expiry date	Jul 20, 2038

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F6/18
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of polyacrylonitrile by polymerisation of a reaction mixture comprising acrylonitrile in a solution where the solvent is a eutectic system comprising a quaternary ammonium compound and a hydrogen donor. Such process allows for the production of a polyacrylonitrile having a desirably high molecular weight, whilst polymerisation time is reduced, and where the solvents are environmentally benign, biodegradable and may be reused in the polymerisation process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.