Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Reexamination Certificate
2011-01-04
2011-01-04
Wu, Shean C (Department: 1795)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
C252S299610, C252S299660, C549S320000, C549S323000, C526S269000, C526S270000
Reexamination Certificate
active
07862867
ABSTRACT:
Disclosed is a bifunctional polymerizable compound represented by the formula [1]. Also disclosed is a polymerizable liquid crystal composition comprising at least one bifunctional polymerizable compound represented by the formula [1] and a polymerizable liquid crystal compound. The bifunctional polymerizable compound has a high polymerizability. When added to a polymerizable liquid crystal compound to prepare a polymerizable liquid crystal composition, the bifunctional polymerizable compound enables to remarkably improve the thermal stability of a polymer produced from the composition. The polymerizable liquid crystal composition containing the bifunctional polymerizable compound has a low crystallization temperature and shows a stable liquid-crystallinity under ordinary environmentwherein X1, X2and X3independently represent a single bond or a benzene ring; Y represents —O— or a single bond; M represents a lactone ring or an acrylate group; and n represents an integer of 4 to 10.
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Birch & Stewart Kolasch & Birch, LLP
Nissan Chemical Industries Ltd.
Wu Shean C
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