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US 11,261,377 B2Granted
Photoactive polymer materials
AssigneeRolic AG
InventorHubert Seiberle
Life of this patent
Estimating the term…
Abstract
The present invention relates to novel photoactive polymer materials and their use as orienting layer for liquid crystals, which are used for the production of non-structured and structured optical elements or electro-optical elements and multi-layer systems.
Claims13
Polymer material which is a homopolymer and comprises repeating units of formula (I):
- wherein
- M1 is a monomer unit selected from the group consisting of acrylate, methacrylate,
- ring A is unsubstituted phenylene or phenylene which is substituted with alkyl or alkoxy,
- ring B is phenylene,
- Y1, Y2 are —CO—O—;
- m is 1, and
- n is 0;
- ring C is unsubstituted phenylene or phenylene which is substituted with methoxy, ethoxy, propoxy or butoxy;
- S1 is a spacer unit S3;
- wherein S3 is —(CH2)r—O—, wherein r is 10, 11 or 12;
- z is —O—,
- D is methyl, ethyl, propyl.
9 more elements
Monomer compound of formula (I′):
- wherein
- M2 is acrylate, methacrylate;
- ring A is unsubstituted phenylene or phenylene which is substituted with alkyl or alkoxy,
- ring B is phenylene,
- Y1, Y2 are —CO—O—;
- m is 1, and
- n is 0;
- ring C is unsubstituted phenylene or phenylene which is substituted with methoxy, ethoxy, propoxy or butoxy;
- S1 is a spacer unit S3;
- wherein S3 is —(CH2)r—O—, wherein r is 10, 11 or 12;
- z is —O—,
- D is methyl, ethyl, propyl.
9 more elements
Dependencies are inferred from the claim text.