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. 07, 2024
Filed:
Mar. 13, 2019
Applicant:
Arkema France, Colombes, FR;
Inventors:
Paul-Guillaume Schmitt, Lescar, FR;
Georges Frémy, Sauveterre de Bearn, FR;
Gilles-Olivier Gratien, Nantes, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 329/16 (2006.01); B01J 23/44 (2006.01); C07C 315/04 (2006.01);
U.S. Cl.
CPC ...
C07C 315/04 (2013.01); B01J 23/44 (2013.01); C07C 329/16 (2013.01);
Abstract
A process for preparing an S,S′-dialkyldithiocarbonate from a dialkyl disulfide and from a particular metal catalyst, in the presence of carbon monoxide is described in addition to the use of S,S′-dialkyldithiocarbonates as reagents for the preparation of polycarbonates, compounds containing at least one urea and/or isocyanate function and compounds containing at least one thioalkyl function.