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:
Jul. 17, 2018
Filed:
Nov. 30, 2015
Applicant:
Kaunas University of Technology, Kaunas, LT;
Inventors:
Algirdas {hacek over (S)}a{hacek over (c)}kus, Kaunas, LT;
Vytas Martynaitis, Kaunas, LT;
Sonata Krik{hacek over (s)}tolaitytė, Kaunas, LT;
Greta Ragaitė, Kaunas, LT;
Mikas Vengris, Vilnius, LT;
Assignee:
KAUNAS UNIVERSITY OF TECHNOLOGY, Kaunas, LT;
Primary Examiner:
Int. Cl.
CPC ...
C07D 491/18 (2006.01); C07D 487/04 (2006.01); C07D 491/107 (2006.01); C07D 209/08 (2006.01); C09K 9/02 (2006.01);
U.S. Cl.
CPC ...
C07D 491/18 (2013.01); C07D 209/08 (2013.01); C07D 487/04 (2013.01); C07D 491/107 (2013.01); C09K 9/02 (2013.01); C09K 2211/1022 (2013.01); C09K 2211/1044 (2013.01);
Abstract
The invention covers new bicyclic bridged [1,3]oksazepine derivatives of the general formula (I) and (II): which exhibit enhanced photochromic properties as compared with known spiropyrans and can be used as molecular photoswitches. The method of production of new compounds and intermediates for preparation thereof are disclosed.