Patent ID: 7105586
Filing Date: 2006-09-12
Classification: C09K,G02B,G02F

Abstract:
1. A polymerizable mixture comprising: a1) 10 to 99% by weight of at least one compound according to formula I having one polymerizable functional group, a2) 5 to 70% by weight of at least one compound according to formula I having two or more polymerizable functional groups, and b) 0.01 to 5% by weight of an initiator; wherein the at least one compound of formula I which has one polymerizable group is: wherein P is a polymerizable group, Sp is a linear alkylene group having 1 to 20 C atoms, optionally one or more non-adjacent CH X is a group of—O—, —S—, —CO—, —COO—, —OCO—, —OCOO— or a single bond, n is 0 or 1, MG is a mesogenic group, and R is an alkyl radical with up to 25 C atoms optionally unsubstituted, mono- or polysubstituted by halogen or CN, optionally one or more non-adjacent CH wherein the at least one compound which has two or more polymerizable groups of formula I is: wherein P is a polymerizable group, Sp is a linear alkylene group having 1 to 20 C atoms, optionally one or more non-adjacent CH X is a group of —O—, —S—, —CO—, —COO—, —OCO—, —OCOO—or a single bond, n is 0 or 1, MG is a mesogenic group, and R is, independently, P-(Sp-X)