JPS6466233A - Cholesteric liquid crystal polyester - Google Patents
Cholesteric liquid crystal polyesterInfo
- Publication number
- JPS6466233A JPS6466233A JP22207387A JP22207387A JPS6466233A JP S6466233 A JPS6466233 A JP S6466233A JP 22207387 A JP22207387 A JP 22207387A JP 22207387 A JP22207387 A JP 22207387A JP S6466233 A JPS6466233 A JP S6466233A
- Authority
- JP
- Japan
- Prior art keywords
- structural units
- formula
- derivative
- units expressed
- acid
- 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
- Liquid Crystal Substances (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE:To obtain the titled novel polyester, melt moldable, having excellent strength and elasticity with hardly any anisotropy of mechanical characteristics in molding and suitable as films and sheets, by copolymerizing plural structural units. CONSTITUTION:The aimed polyester obtained by, e.g., acylating (A) preferably 20-90mol.% p-hydroxybenzoic acid (derivative) to be structural units expressed by formula I with (B) preferably 0.1-40mol.% dicarboxylic acid (derivative) (e.g., terephthalic acid, etc.) to be structural units expressed by formula II and (C) preferably 0.1-40mol.% optically active diols to be structural units expressed by formula III, polycondensing the acylation product to provide an oligomer and copolymerizing the resultant oligomer with (D) preferably 5-50mol.% 6-hydroxy-2-naphthoic acid (derivative) to be structural units expressed by formula IV.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222073A JPH0678427B2 (en) | 1987-09-07 | 1987-09-07 | 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 |
---|---|---|---|
JP62222073A JPH0678427B2 (en) | 1987-09-07 | 1987-09-07 | Method for producing cholesteric liquid crystalline polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6466233A true JPS6466233A (en) | 1989-03-13 |
JPH0678427B2 JPH0678427B2 (en) | 1994-10-05 |
Family
ID=16776694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62222073A Expired - Lifetime JPH0678427B2 (en) | 1987-09-07 | 1987-09-07 | Method for producing cholesteric liquid crystalline polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0678427B2 (en) |
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
- 1987-09-07 JP JP62222073A patent/JPH0678427B2/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 |
Also Published As
Publication number | Publication date |
---|---|
JPH0678427B2 (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 |