| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compound suitable for an optical film capable of providing desired phase contrast in a wide band even in one sheet of optical film and arbitrarily controlling chromatic dispersion. <P>SOLUTION: The compound is represented by formula (1) [wherein C1 is a quaternary carbon atom or a quaternary silicon atom; A1 and A2 are each a divalent cyclic hydrocarbon group, a divalent heterocyclic group or the like; D1 and D2 are each a hydrocarbon group or a heterocyclic group; B1 and B2 are each a divalent group such as -C≡C- and -O-; X1 and X2 are each a divalent group represented by formula (2) (wherein A3 represents the same meaning as A1; B3 represents the same meaning as B1; n is an integer of 1-4); E1 and E2 are each an alkylene group and P1 and P2 are each a polymerizable group]. <P>COPYRIGHT: (C)2007,JPO&INPIT |
