JPS6490219A - Cholesteric liquid crystal polyester - Google Patents
Cholesteric liquid crystal polyesterInfo
- Publication number
- JPS6490219A JPS6490219A JP24369687A JP24369687A JPS6490219A JP S6490219 A JPS6490219 A JP S6490219A JP 24369687 A JP24369687 A JP 24369687A JP 24369687 A JP24369687 A JP 24369687A JP S6490219 A JPS6490219 A JP S6490219A
- Authority
- JP
- Japan
- Prior art keywords
- arom
- deriv
- liquid crystal
- cholesteric liquid
- crystal polyester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
- Liquid Crystal Substances (AREA)
Abstract
PURPOSE:To provide the title polyester having a high strength, a high elasticity, lowly anisotropic mechanical characteristics in molding and a melt-moldability, by incorporating thereinto four kinds of specific constituent units. CONSTITUTION:20-80mol.% arom. hydroxycarboxylic acid (deriv.) (e.g., P- hydroxybenzoic acid) and 5-50mol.% arom. dicarboxylic acid (deriv.) (e.g., terephthalic acid) are reacted with 5-50mol.% arom. diol (deriv.) (e.g., hydroquinone) and 0.1-40mol.% 2-methyl-1,4-butanediol to prepare a cholesteric liquid crystal polyester having constituent units of formulae I-IV [wherein Ar<1>-3 are each a 6-20C bivalent arom. hydrocarbon group(s) or the like having an arom. ring, provided that 1,4-phenylene, 2,6-naphthyl and 4,4'-biphenyl accounts for at least 60mol.% of Ar<1>].
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243696A JPH0678428B2 (en) | 1987-09-30 | 1987-09-30 | Method for producing cholesteric liquid crystalline polyester |
US07/240,952 US4891418A (en) | 1987-09-07 | 1988-09-06 | Cholesteric liquid crystal polyester |
EP88308262A EP0311257B1 (en) | 1987-09-07 | 1988-09-07 | Cholesteric liquid crystal polyesters |
DE8888308262T DE3870794D1 (en) | 1987-09-07 | 1988-09-07 | POLYESTERS FORMING CHOLESTERIC LIQUID CRYSTALS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243696A JPH0678428B2 (en) | 1987-09-30 | 1987-09-30 | Method for producing cholesteric liquid crystalline polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6490219A true JPS6490219A (en) | 1989-04-06 |
JPH0678428B2 JPH0678428B2 (en) | 1994-10-05 |
Family
ID=17107627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243696A Expired - Lifetime JPH0678428B2 (en) | 1987-09-07 | 1987-09-30 | Method for producing cholesteric liquid crystalline polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0678428B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0317121A (en) * | 1989-06-15 | 1991-01-25 | Nippon Oil Co Ltd | Polyester with liquid crystal nature |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6178831A (en) * | 1984-09-27 | 1986-04-22 | Nippon Telegr & Teleph Corp <Ntt> | Copolyester |
JPS6241221A (en) * | 1985-08-19 | 1987-02-23 | Nippon Telegr & Teleph Corp <Ntt> | Copolyester |
-
1987
- 1987-09-30 JP JP62243696A patent/JPH0678428B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6178831A (en) * | 1984-09-27 | 1986-04-22 | Nippon Telegr & Teleph Corp <Ntt> | Copolyester |
JPS6241221A (en) * | 1985-08-19 | 1987-02-23 | Nippon Telegr & Teleph Corp <Ntt> | Copolyester |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0317121A (en) * | 1989-06-15 | 1991-01-25 | Nippon Oil Co Ltd | Polyester with liquid crystal nature |
Also Published As
Publication number | Publication date |
---|---|
JPH0678428B2 (en) | 1994-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |