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:
Nov. 24, 2015
Filed:
Mar. 11, 2015
Applicant:
Akzo Nobel Chemicals International B.v., Amersfoort, NL;
Inventors:
Rudolf Anthonius Maria Venderbosch, Duiven, NL;
Hendrika Petronella Maria Verlaan-Hooft, Soest, NL;
Auke Gerardus Talma, Bathmen, NL;
Olaf Klobes, Greiz, DE;
Ralf Tatas, Alsdorf, DE;
Hendrik Jan Vos, Apeldoorn, NL;
Assignee:
AKZO NOBEL CHEMICALS INTERNATIONAL B.V., Amersfoort, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 75/00 (2006.01); C07C 319/06 (2006.01); C08G 75/14 (2006.01); C08L 81/04 (2006.01); C07C 319/28 (2006.01);
U.S. Cl.
CPC ...
C07C 319/06 (2013.01); C07C 319/28 (2013.01); C08G 75/14 (2013.01); C08L 81/04 (2013.01);
Abstract
The invention related to a process for the preparation of a bismercaptodiether by reacting a polysulfide with a monothiol in the presence of a base and to a process for the depolymerization of a polysulfide by reacting said polysulfide with a monothiol in the presence of a base. These processes enable the preparation of bismercaptodiethers without inorganic salt formation.