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. 27, 2021
Filed:
Aug. 29, 2018
Reuter Chemische Apparatebau E.k., Freiburg, DE;
Karl Reuter, Freiburg, DE;
Vasyl Andrushko, Freiburg, DE;
Mark Kantor, Freiburg, DE;
Florian Stolz, Freiburg, DE;
Noriyuki Kato, Tokyo, JP;
Mitsuteru Kondo, Tokyo, JP;
Munenori Shiratake, Kamisu, JP;
Kentaro Ishihara, Tokyo, JP;
Shinya Ikeda, Tokyo, JP;
Shoko Suzuki, Tokyo, JP;
Koji Hirose, Tokyo, JP;
Kensuke Oshima, Tokyo, JP;
Shuya Nagayama, Tokyo, JP;
Reuter Chemische Apparatebau E.K., Freiburg, DE;
Abstract
The present invention relates to binaphthyl compounds of the formula (I), which are suitable as monomers for preparing polycarbonate resins having beneficial optical properties and which can be used for producing optical lenses: Formula (I) where X is C-C-alkandiyl or C-C-alkandiyl-C(O)—, where C(O) is bound to the oxygen atom of the hydroxyl group and where C-C-alkandiyl or C-C-alkandiyl, respectively, are unsubstituted or carry a phenyl ring; R and R' are identical or different and selected from mono or polycyclic aryl having from 6 to 36 carbon atoms and mono- or polycyclic hetaryl having a total of 5 to 36 atoms, which are ring members, where 1, 2, 3 or 4 of these atoms are selected from nitrogen, sulfur and oxygen, while the remainder of these atoms are carbon atoms, where mono- or polycyclic aryl and mono- or polycyclic hetaryl are unsubstituted or carry 1 or 2 radicals R, which are selected from the group consisting of CN, CH, OCH, O-phenyl, O-naphthyl, S-phenyl, S-naphthyl, CI or F; and, if X is C-C-alkandiyl-C(O)—, the esters thereof, in particular the C-C-alkylesters thereof.