Crosslinkable nematic polyorganosiloxanes

Details Crosslinkable nematic polyorganosiloxanes Crosslinkable nematic polyorganosiloxanes

1995-10-11

1997-03-11

Glass, Margaret W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 31, 528 26, 528 30, 528 27, 25229901, 556460, 556461, 556419, 556425, 556427, 556439, 556436, 556445, C08G 7712

Patent

active

056102585

ABSTRACT:
The crosslinkable nematic polyorganosiloxanes are cyclic polyorganosiloxanes containing at least three different mesogenic side groups per polyorganosiloxane, where at least two mesogenic side groups per polyorganosiloxane each contain at least three radicals selected from aromatic, heteroaromatic and cycloaliphatic radicals. They contain a methacrylic or acrylic group in at least one of the mesogenic side groups. The cyclic polyorganosiloxanes have a broad nematic phase and can be readily aligned.

REFERENCES:
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patent: 5098978 (1992-03-01), Riepl et al.
patent: 5138010 (1992-08-01), Keller et al.
patent: 5211877 (1993-05-01), Andrejewski et al.
Derwent Abstract AN 93-361071.
Derwent Abstract AN 93-244392.
8291 Advanced Materials for Optics and Electronics, 1(1992)Dec., No.6, GB, "Liquid Crystalline Siloxanes . . . " by Natarajan, pp. 293-297.

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