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:
Oct. 07, 2014
Filed:
Feb. 15, 2013
Thomas Wettling, Limburgerhof, DE;
Stefan Hirsch, Neustadt, DE;
Markus Brym, Limburgerhof, DE;
Markus Weis, Roemerberg, DE;
Thomas Wettling, Limburgerhof, DE;
Stefan Hirsch, Neustadt, DE;
Markus Brym, Limburgerhof, DE;
Markus Weis, Roemerberg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A catalyst complex composed of boron trifluoride and a cocatalyst mixture of 10 to 90% by weight of a monohydric primary C- to C-alcohol and 90 to 10% by weight of a monohydric secondary C- to C-alcohol, where the molar ratio of boron trifluoride to the sum of all alcohols is 2:1 to 1:10. This catalyst complex is used in the preparation of high-reactivity isobutene homopolymers having a number-average molecular weight of 300 to 50 000, using, as the feedstock, a Chydrocarbon mixture comprising at least 20% by weight of isobutene and a total of at least 10% by weight of other Colefins.