Organopolysiloxane compound having liquid-crystalline phase

Details Organopolysiloxane compound having liquid-crystalline phase Organopolysiloxane compound having liquid-crystalline phase

1989-10-03

1990-08-21

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

556479, 556450, 556453, 556457, 528 26, 528 27, 528 43, 528 31, 528 15, C08G 7704

Patent

active

049507265

ABSTRACT:
A novel organopolysiloxane compound is disclosed which is capable of being cured by crosslinking and exhibiting a liquid-crystalline phase even in a crosslinked condition. The organopolysiloxane has mesogenic groups bonded to the silicon atoms such as --CH.sub.2).sub.3 O--Pn--CO--O--Pn--CN; --CH.sub.2).sub.3 O--CH.sub.2).sub.3 O--Pn--CO--O--Pn--CN; --CH.sub.2).sub.3 O--Pn--CO--O--Pn--F; and --CH.sub.2).sub.3 O--Pn--CO--O--Pn--O--CH.sub.3, in which the symbol Pn denotes a 1,4-phenylene group, and hydrolyzable groups pertaining to the crosslinking reaction.

REFERENCES:
patent: 4358391 (1982-11-01), Finkelmann et al.
patent: 4388453 (1983-06-01), Finkelmann et al.

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