Patent ID: 6762299
Filing Date: 2004-07-13
Classification: C09B

Abstract:
A mixed crystal of two or more different benzimidazolonedioxazine compounds of the formula (1) whereX and Xâ€² are identical or different and are hydrogen or halogen, R1, R1â€², R2 and R2â€² are identical or different and are hydrogen, C1-C18 alkyl, trifluoromethyl, C1-C18 alkylcarbonyl, C5-C6 cycloalkyl or phenyl which may be unsubstituted or substituted by one or more halogen atoms, nitro groups, trifluoromethyl, C1-C18 alkyl, C1-C18 alkoxy, C1-C18 alkylcarbonyl and/or C1-C18 alkoxycarbonyl groups.