Radiation imagery chemistry: process – composition – or product th – Liquid crystal process – composition – or product
Reexamination Certificate
2004-01-23
2008-10-28
Visconti, Geraldina (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Liquid crystal process, composition, or product
C430S270100, C252S299010, C428S001100, C428S001200
Reexamination Certificate
active
07442475
ABSTRACT:
The invention relates to cyanopyridone derivatives, to their use in liquid crystal media, liquid crystal devices, anisotropic polymers, optical, electrooptical, decorative, security, cosmetic, diagnostic, pharmaceutic, electric, electronic, charge transport, semiconductor, optical recording, electroluminescent, photoconductor and electrophotographic applications, and to liquid crystal media, polymers and displays comprising them.
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Database CA ′Online! Chemical Abstracts Service, Columbus, Ohio, US; Pavelyuchenko, A.I.et al: “Synthesis and Liquid-Crystal Properties of 2-(4-Alkyl-or 4-Alkoxyphenyl) -5-Cyanopyridines” Retrieved From STN Database Accession No. 106:156234.
Farrand Louise Diane
Heckmeier Michael
Merck Patent GmbH
Millen White Zelano & Branigan P.C.
Visconti Geraldina
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