Process for aligning liquid-crystalline polymers

Details Process for aligning liquid-crystalline polymers Process for aligning liquid-crystalline polymers

1991-03-05

1993-07-13

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Starting material is nonhollow planar finite length preform...

264108, 264500, 264510, 264570, 427165, 428910, B29B 1302, B29C 3504, B29C 7102

Patent

active

052271153

ABSTRACT:
A process for aligning a layer of a liquid-crystalline, polymeric material in which a gas or liquid stream is passed over the liquid-crystalline, polymeric material, preferably for aligning main-chain polymers which have a nematic phase by passing a hot stream of air onto the material. Electrooptical displays which contain an alignment layer of this type have high contrast. The alignment layers have advantages over conventional rubbed alignment layers since, for example, no electrostatic charging takes place.

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