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:
Feb. 23, 2021
Filed:
Jan. 26, 2018
Basf SE, Ludwigshafen, DE;
Kurt Dietliker, Allschwil, CH;
Katharina Misteli, Basel, CH;
Katia Studer, Rixheim, FR;
Tunja Jung, Rheinfelden-Herten, DE;
Lother Alexander Engelbrecht, KI Heerenveen, NL;
BASF SE, Ludwigshafen, DE;
Abstract
Compounds of the Formula (I), (II) and (III) wherein Ar is for example phenylene, biphenyleneor naphthylene, all of which are unsubstituted or substituted by C-C-alkyl, C-C-alkenyl, CN, OR, SR, CH 2OR, COOR, CONRRor halogen; R, R, Rand Rindependently of one another other are hydrogen or C-C-alkyl; Rand Rtogether and Rand Rtogether form a C-C-alkylene bridge which is unsubstituted or substituted by one ore more C-C-alkyl; Ris hydrogen or C-C-alkyl; Rand Rindependently of one another for example are hydrogen, phenyl, C-C-alkyl, C-C-alkyl which is interrupted by one or more O; n is 1-10; X is O, S or NR; A and Aare suitable linking groups; are suitable as photolatent bases.