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:
Mar. 01, 2016
Filed:
Jan. 17, 2011
Carsten Kreuder, Sarnia, CA;
Adam Gronowski, Sarnia, CA;
John Lovegrove, Sarnia, CA;
Hanns-ingolf Paul, Leverkusen, DE;
Rolf Feller, Mettmann, DE;
Dana Adkinson, London, CA;
Phil Magill, London, CA;
Carsten Kreuder, Sarnia, CA;
Adam Gronowski, Sarnia, CA;
John Lovegrove, Sarnia, CA;
Hanns-Ingolf Paul, Leverkusen, DE;
Rolf Feller, Mettmann, DE;
Dana Adkinson, London, CA;
Phil Magill, London, CA;
LANXESS INTERNATIONAL SA, Granges-Paccot, CH;
Abstract
The invention relates to an energy efficient, environmentally favorable process for the preparation of butyl ionomers that uses a common medium for both solution polymerization and subsequent bromination of butyl rubber. More particularly, the invention relates to a process that employs a common aliphatic medium for both solution polymerization and bromination of butyl rubber in the presence of a brominating agent and optionally for subsequent reaction with at least one nitrogen and/or phosphorus based nucleophile.