Patent · US Active

Process for the synthesis of (per)fluoropolyether amines

US10723839B2 · kind B2 · utility

4Cited by

7References

16Claims

0Family size

Assignee

SOLVAY SPECIALTY POLYMERS ITALY S.P.A. · IT

Inventors

Claudio Adolfo Pietro Tonelli · Sesto San Giovanni, IT
Ivan Wlassics · Albenga, IT
Giuseppe Marchionni · Milano, IT

Key dates

Filing date	Jul 7, 2016
Grant date	Jul 28, 2020
Priority date	—
Expiry date	Jul 17, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2650/50
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the manufacture of a (per)fluoropolyether amine comprising reacting a sulfonic ester of a (per)fluoropolyether alcohol with an excess of ammonia or organic amine at selected temperature is herein disclosed. The process allows obtaining (per)fluoropolyether amines, in particular primary, secondary and tertiary (per)fluoropolyether amines with high yields and selectivity and can be conveniently applied on an industrial scale.

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