Patent ID: 6730241
Filing Date: 2004-05-04
Classification: C08F,C09K

Abstract:
A polymerizable composition which displays a liquid crystal phase, comprising a liquid crystalline backbone with two or more ring structures and a compound (I) with a partial structure represented by a general formulaP1â€”S1â€”A1â€”D1â€”E2â€”(Y1â€”F1)nâ€”Y2â€”G1â€”wherein P1 represents a polymerizable functional group;S1 represents a linkage chain selected from a group consisting of â€”(CH2)wâ€”, â€”O(CH2)wâ€”, â€”(CH2)wOâ€”, â€”(CH2)wC(&boxH;O)Oâ€”, â€”(CH2)wOC(&boxH;O)â€”, â€”C(&boxH;O)O(CH2)wâ€” and â€”OC(&boxH;O)(CH2)wâ€” (wherein w represents an integer from 1 to 20); A1 and E2 each represent, independently, either one of a hydrocarbon ring and a hetero ring, although E2 is a ring incorporated within said liquid crystalline backbone; and D1 represents a linkage chain selected from a group consisting of â€”C(&boxH;O)â€”Oâ€”(CH2)mâ€”Oâ€”, â€”O(CH2)mâ€”Oâ€”C(&boxH;O)â€”, â€”Oâ€”C(&boxH;O)â€”(CH2)mâ€”Oâ€”, and â€”O(CH2)mâ€”C(&boxH;O)â€”Oâ€” (wherein m represents an integer from 1 to 15); E2, F1 , and G1 each represent, independently, a ring structure selected from a group consisting of (wherein p represents an integer of 1 to 4);Y1 and Y2 each represent, independently, a linkage group selected from a group consisting of a single bond, â€”CH2CH2â€”, â€”CH2Oâ€”, â€”OCH2â€”, â€”C(&boxH;O)Oâ€”, â€”OC(&boxH;O)â€”, â€”Câ‰¡Câ€”, â€”CH&boxH;CHâ€”, â€”CF&boxH;CFâ€”, â€”(CH2)4â€”, â€”CH2CH2CH2Oâ€”, â€”OCH2CH2CH2â€”, â€”CH&boxH;CHâ€”CH2CH2â€”, â€”CH2CH2â€”CH&boxH;CHâ€”, â€”CH&boxH;CHâ€”C(&boxH;O)Oâ€” and â€”OC(&boxH;O)â€”CH&boxH;CHâ€”; and n represents an integer from 0 to 3.