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:
May. 10, 1977
Filed:
Dec. 10, 1975
Applicant:
Inventors:
Carlo Neri, San Donato Milanese, IT;
Gioacchino Cipriani, San Donato Milanese, IT;
Assignee:
ANIC, S.p.A., Palermo, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260463 ;
Abstract
A method is disclosed for preparing salts of monoesters of the carbonic acid, the improvement consisting in that the alcohol corresponding to the monoester is reacted with carbon dioxide and a halide of a metal of the Groups IA, IIA, IIIA and IIB of the Periodic Table, the reaction being effected in the presence of a nitrogenous, aliphatic, aromatic or heterocyclic base.