Patent · US Active

Desalination of polyaryl ethers by means of melt extraction

US9975994B2 · kind B2 · utility

2Cited by

7References

11Claims

0Family size

Assignee

BASF SE

Inventors

Simon Gramlich · Ludwigshafen am Rhein, DE
Achim Stammer · Freinsheim, DE
Angela Ulzhöfer · Ludwigshafen, DE
Frank Niedermaier · Ladenburg, DE

Key dates

Filing date	Jan 22, 2016
Grant date	May 22, 2018
Priority date	—
Expiry date	Jan 22, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D207/267
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for desalinating a salt-containing polymer (SP) comprising a polyaryl ether having a softening temperature TS and a salt (S), comprising the steps of

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