Armstrong, Kratz, Quintos, Hanson & Brooks, LLP
Polymerizable composition showing liquid-crystal phase and optically anisotropic object made with the same
An object of the present invention is to provide a polymerizable liquid crystal composition incorporating a polymerizable liquid crystal compound which displays a low nematic phase temperature, displays excellent compatibility with other polymerizable liquid crystal compounds, and furthermore yields a product following polymerization, of good transparency and high mechanical strength. A polymerizable composition is provided which displays a liquid crystal phase, and moreover incorporates a liquid crystal backbone with two or more ring structures and a compound with a partial structure represented by the general formulaP1&#8212;S1&#8212;A1&#8212;D1&#8212;E1&#8212;[wherein P1 represents a polymerizable functional group; S1 represents &#8212;(CH2)w&#8212;, &#8212;O(CH2)w&#8212;, &#8212;(CH2)wO&#8212;, &#8212;(CH2)wC(&boxH;O)O&#8212;, &#8212;(CH2)wOC(&boxH;O)&#8212;, &#8212;C(&boxH;O)O(CH2)w&#8212; or &#8212;OC(&boxH;O)(CH2)w&#8212; (w: 1 to 20); A1 and E1 each represent a hydrocarbon ring or a hetero ring, although E1 is a ring incorporated within the liquid crystal backbone; and D1 represents &#8212;C(&boxH;O)&#8212;O&#8212;(CH2)m&#8212;O&#8212;, &#8212;O(CH2)m&#8212;O&#8212;C(&boxH;O)&#8212;, &#8212;O&#8212;C(&boxH;O)&#8212;(CH2)m&#8212;O&#8212;, or &#8212;O(CH2)m&#8212;C(&boxH;O)&#8212;O&#8212; (m: 1 to 15)].
Dainippon Ink and Chemicals, Inc.
C C C C C C C C C
C08F C08F C09K C08F C08F C09K C08F C08F C08F
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Tatsuo Naoki Hiroshi Seungtaeg
Kawara Obi Hasebe Lee