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US 5,495,037 AGranted
Liquid crystalline polymer having a polysiloxane backbone
AssigneeNational Science Council
InventorsChain-Shu Hsu, Yi-Jing Leu, Li-Jen Shih, Ging-Ho Hsiue
Life of this patent
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Abstract
A side-chain liquid crystalline polysiloxane having the following formula is disclosed: ##STR1## wherein Me is methyl; m is an integer of 40 to 80; n is an integer of 1 to 12; Ar is phenylene, biphenylene or naphthalene; Ar' is phenylene or naphthalene; X is halogen or methyl; and R is C.sub.1 -C.sub.4 alkyl.
Claims52
A liquid crystalline polysiloxane having the following formula:
- ##STR17## wherein Me is methyl;
- m is an integer of 40 to 80;
- n is an integer of 1 to 12;
- Ar' is phenylene or naphthalene;
- Ar is phenylene, biphenylene or naphthalene provided that Ar is not biphenylene and is not phenylene when Ar' is phenylene;
- X is halogen or methyl;
- and
- R is C.sub.1 -C.sub.4 alkyl.
5 more elements
A liquid crystalline compound having the following formula:
- ##STR18## wherein n is an integer of 1 to 12;
- Ar' is phenylene or naphthalene;
- Ar is phenylene, biphenylene or naphthalene provided that Ar is not biphenylene and is not phenylene when Ar' is phenylene;
- X is halogen or methyl;
- and
- R is C.sub.1 -C.sub.4 alkyl.
3 more elements
A liquid crystalline polysiloxane according to claim. 27 wherein Ar is phenylene or naphthalene.
Dependencies are inferred from the claim text.