EP0569809A1
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EP
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Process and means for disinclination-free planar orientation of chiral liquid cristalline side chain polymers
Assignee: F Hoffmann La Roche AG
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Filing: 1993-05-03
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Granted: —
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Expires: 2013-05-03
Abstract
Abstract In layers or films of chiral liquid-crystalline side-chain polymers (3), as used, for example, for optical filters or retarders, the hitherto unavoidable defects caused by disinclination are eliminated by exposing the layer of chiral liquid-crystalline side-chain polymer in its cholesteric phase to an electric field aligned perpendicular thereto.
Inventors
- 👤 Richard Buchecker
- 👤 Rolf-Peter Herr
- 👤 Martin Schadt
- 👤 Robert Maurer
- 👤 Hans-Peter Weitzel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 23:45
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/13363; G02F1/133636; G02F1/1337; C; C09; C09K; C09K19/00; C09K19/04; C09K19/40; C09K19/406; C09K19/408; C09K19/52; C09K19/58; C09K19/586; G02F1/137
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References Cited (Backward Citations)
EP0007574B1
Cited
WO1990016005A1
Cited
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