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:
Jun. 03, 2025
Filed:
Oct. 18, 2021
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Andreas Taden, Duesseldorf, DE;
Horst Beck, Neuss, DE;
Adrian Brandt, Düsseldorf, DE;
Kenji Ito, Duesseldorf, DE;
Johannes Gerardus De Vries, Rostock, DE;
Arianna Savini, Rostock, DE;
Sergey Tin, Rostock, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
The present invention is directed to a monomer for chain growth polymerization, in particular anionic polymerization, said monomer having the general formula (EFL) wherein: Ris a C-Calkyl, C-Ccycloalkyl, C-Caryl or C-Calkenyl group. The present invention is further directed to a process for the anionic polymerization of at least one compound (EFL) as defined above, wherein said anionic polymerization is conducted in the presence of an initiator selected from the group consisting of: alkali metal organyls; alkali metal alkoxides; alkali metal thiolate; alkali metal amides; and compounds of an element of group 3a of the Periodic Table of the Elements. The process of anionic polymerization yields a homo- or co-polymer (p-EFL) having pendant lactone functional groups in its repeating units.