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:
May. 23, 2023
Filed:
Apr. 13, 2022
Technische Universitaet Wien, Vienna, AT;
Robert Liska, Schleinbach, AT;
Patrick Knaack, Vienna, AT;
Paul Gauss, Vienna, AT;
Roland Taschner, Marz, AT;
TECHNISCHE UNIVERSITAET WIEN, Vienna, AT;
Abstract
Compounds of formula (I) are photoinitiators or photosensitizers in a photopolymerizable composition: Rrepresents a monovalent, linear, branched or cyclic, aliphatic hydrocarbon group having 1 to 20 carbon atoms, optionally substituted with substituent(s) selected from —Cl, —Br, —OH, ═O, —NH—CO—OR, —NH—CO—Ror free-radically or ionically polymerizable groups. Each Ris independently —H or Calkyl; n is ≥1. If n=1, Z and Y are absent and X represents —OR; if n is >1, Z represents —OR—, Y represents —OR— and X represents —H or —OH. Rrepresents —H or R; and Rand Reach independently represent a bivalent hydrocarbon group. The polymerizable moieties as optional substituents of Rare polymerizable double or triple bonds, lactam, lactone and epoxide moieties, which are subjectable to ring-opening polymerization; and two of Rto Rmay be linked to one another to form a ring or a dimer.