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:
Apr. 21, 2026
Filed:
Nov. 09, 2021
Basf SE, Ludwigshafen am Rhein, DE;
Bernd Schaefer, Ludwigshafen, DE;
Klaus Muehlbach, Gruenstadt, DE;
Paul Lederhose, Ludwigshafen, DE;
Wolfgang Grabarse, Ludwigshafen, DE;
Andreas Minke, Ludwigshafen, DE;
Thorsten Schoeppe, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present application describes a new process for the preparation of polyisobutene derivatives, such polyisobutene derivatives, and their use. The process irradiates a reaction mixture containing an oxygen-containing gas in contact with polyisobutene, a photosensitizer and an optional solvent, with monochromatic light emitted from an electroluminescent lighting device, at least 90% of power of said monochromatic light and at most 100% of said power being emitted in the range from 350 nm to 680 nm.