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:
Sep. 08, 2015
Filed:
Jul. 17, 2012
Ricarda Leiberich, Neu-Isenburg, DE;
Joachim Ritter, Leverkusen, DE;
Hanns-ingolf Paul, Leverkusen, DE;
Udo Wiesner, Bornheim, DE;
Holger Luesgen, Solingen, DE;
Ricarda Leiberich, Neu-Isenburg, DE;
Joachim Ritter, Leverkusen, DE;
Hanns-Ingolf Paul, Leverkusen, DE;
Udo Wiesner, Bornheim, DE;
Holger Luesgen, Solingen, DE;
LANXESS INTERNATIONAL SA, Granges-Paccot, CH;
Abstract
The invention relates to an energy efficient, environmentally favorable process for the preparation of brominated butyl rubbers, that uses a bromination agent and a oxidizing agent in order to enhance the utilization of bromine contained in the bromination agent. In a preferred embodiment a common medium for both solution polymerization and subsequent bromination of the rubber is employed.