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:
Aug. 15, 2017
Filed:
Sep. 16, 2014
Crysoptix Kk, Tokyo, JP;
CRYSOPTIX KK, Tokyo, JP;
Abstract
The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), the anisotropic optical film based on these derivatives with phase-retarding properties for displays, and method of producing thereof: where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SOH, n is 0, 1, 2 or 3; Z is an acid amide group L-NH; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H, NH, Na, K, Li, Mg, Ca, Zn, and Al; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH, CH, NO, Cl, Br, F, CF, CN, OH, OCH, OCH, OCOCH, OCN, SCN, NH, and NHCOCH; w is 0, 1, 2, 3 or 4; and Ris a substituent selected from the list comprising H, CH, CH, CH, i-CH, CHCHCHCH, CH(CH)CHCH, CHCH(CH)CHand C(CH)and L is a linking group.