The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2020
Filed:
Jun. 22, 2016
Arkema France, Colombes, FR;
Grégory Schmidt, Colombes, FR;
ARKEMA FRANCE, Colombes, FR;
Abstract
A process for the preparation of a bis(sulphonato)imide salt of formula: (III) (SO)—N—(SO) 3Cwhere Crepresents a monovalent cation, comprising the reaction of amidosulphuric acid of formula: (I) (OH)—SO—NHwith a halosulphonic acid of formula: (II) (OH)—SO—X where X represents a halogen atom, and comprising a reaction with a base which is a salt formed with the cation C. Also, a process for the preparation of bis(fluorosulphonyl)imide acid of formula: (V) F—(SO)—NH—(SO)—F and to a process for the preparation of lithium bis(fluorosulphonyl)imide salt of formula: (VII) F—(SO)—N—(SO)—F Li.