Photochromic dichroic naphtho-pyrans and optical articles containing them

Photochromic dichroic naphtho-pyrans and optical articles containing them

A naphthopyran compound represented by the formulae (I) to (II) wherein: -mi, Hi2, p, q are each an integer comprised from O to 4 or 5 inclusive; -Ri, R2 and R4, represent a group selected from halogen, H, -Ra, aryl, -OH, -ORa, -SH, -SRa, -NH2, -NR8RaI, -NRbRc, -NRal-CORa, -NRaiCO(aryl), -NRai aryl,...

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Bibliographische Detailangaben
Hauptverfasser: AIKEN STUART, HERON BERNARD MARK, SMITH NICOLA JANE, GABBUTT CHRISTOPHER DAVID, KERSHAW CHRISTOPHER STEPHEN, CANO JEAN-PAUL
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
HETEROCYCLIC COMPOUNDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:A naphthopyran compound represented by the formulae (I) to (II) wherein: -mi, Hi2, p, q are each an integer comprised from O to 4 or 5 inclusive; -Ri, R2 and R4, represent a group selected from halogen, H, -Ra, aryl, -OH, -ORa, -SH, -SRa, -NH2, -NR8RaI, -NRbRc, -NRal-CORa, -NRaiCO(aryl), -NRai aryl, -N-aryfe, -N(aryl)CO(aryl), -CO-R3, -CO2R3I, -OC(O)-Rd, and -X-(Re)-Y, and linear or branched (Ci-Ci8) perfluoroalkyl group, wherein R3, Rai, Rb, Rc, X, Y, Re, Rd are as defined into the description; -Zi re resent a group selected from: (formules).