Patent ID: 7029729

Claim:
A cholesteric liquid crystal composition comprising: a liquid crystalline polymer obtained from polymerization of a liquid crystal monomer of formula II; and at least one non-liquid crystalline additive of formula I that comprises a substructure of the liquid crystal monomer of formula II; wherein formula II is: where M, N, and Q are each independently: b and c are each independently zero or 1; W, X, and V are each non-directionally and independently a covalent bond, —C(═O)—O—, —C(═O)—S—, —C(═O)—Se—, —C(═O)—Te—, —(CH 2 ) k — where k is 1 to 8, —(CH═CH)—, —(C≡C)—, —CH═N—, —CH 2 —O—, —C(═O)—, —O—, —O—C(═O)—O—, or a combination thereof; Y, Z, and U are each independently —H, —Cl, —F, —Br, —I, —OH, —O(CH 2 ) j CH 3 where j is 0 to 8, —CH 3 , —CF 3 , —OCF 3 , —CN, —NO 2 , aryl, arylalkoxy, carboxylic acid, thioether, or an amide; e, and g are each independently zero, 1, 2, 3, or 4; h is 1, 2, or 3; and P is an acrylate, methacrylate, acrylamide, isocyanate, epoxy, silane or vinyl; and wherein formula I is: where M, N, and Q, W, X, and V, Y, Z, and U, b, c, e, f, and g, h, are as defined for formula II and R is —H, —OH, —CN, C 1 –C 8 alkyl, C 1 –C 8 alkoxy, an aryl group, an arylalkoxy group, a carboxylic acid group, a halogen, a thioether, or an amide.