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. 06, 2021
Filed:
Oct. 09, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Kelly A. Volp, Minneapolis, MN (US);
Shih-Hung Chou, Maplewood, MN (US);
Paul J. Homnick, Lake Elmo, MN (US);
Ahmed S. Abuelyaman, Woodbury, MN (US);
Tao Gong, Woodbury, MN (US);
Joel D. Oxman, Minneapolis, MN (US);
Wayne S. Mahoney, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Disclosed are of the protected photoinitiators of the formula: wherein Aryl1 is an aromatic or heteroaromatic ring; Aryl2 is an aromatic ring; each Ris an alkyl, an aryl, an electron donating group or an electron withdrawing group, and subscript a is 0 to 3; each Ris an alkyl, an aryl, an electron donating group or an electron withdrawing group, and subscript b is 0 to 3; Prot is a protected carbonyl group.