IT1271314B - Thermotropic liquid crystal copolyester amide derived from phenylhydroquinone - Google Patents
Thermotropic liquid crystal copolyester amide derived from phenylhydroquinoneInfo
- Publication number
- IT1271314B IT1271314B ITMI942590A ITMI942590A IT1271314B IT 1271314 B IT1271314 B IT 1271314B IT MI942590 A ITMI942590 A IT MI942590A IT MI942590 A ITMI942590 A IT MI942590A IT 1271314 B IT1271314 B IT 1271314B
- Authority
- IT
- Italy
- Prior art keywords
- phenylhydroquinone
- unit derived
- liquid crystal
- derived
- thermotropic liquid
- Prior art date
Links
- XCZKKZXWDBOGPA-UHFFFAOYSA-N 2-phenylbenzene-1,4-diol Chemical compound OC1=CC=C(O)C(C=2C=CC=CC=2)=C1 XCZKKZXWDBOGPA-UHFFFAOYSA-N 0.000 title abstract 6
- 150000001408 amides Chemical class 0.000 title abstract 4
- 229920001634 Copolyester Polymers 0.000 title abstract 3
- 239000004974 Thermotropic liquid crystal Substances 0.000 title abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- 239000000178 monomer Substances 0.000 abstract 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 1
- -1 aromatic dicarboxylic acids Chemical class 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 125000004430 oxygen atom Chemical group O* 0.000 abstract 1
- 238000006068 polycondensation reaction Methods 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
Landscapes
- Polyamides (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a thermotropic liquid crystal copolyester amide derived from phenyl hydroquinone which is capable of giving rise to an anisotropic liquid phase over a wide temperature range, typically 250-400 degree C. The copolyester amide is essentially formed from the following monomer units: a) a unit derived from phenylhydroquinone b) a unit derived from an aromatic dicarboxylic acid or from a mixture of two or more aromatic dicarboxylic acids c) a unit derived from aromatic monomers which introduce amide links into the polymer chain d) optionally, a unit comprising aromatic groups bound to the polymer chain by means of oxygen atoms. The polymer is produced by polycondensation in the molten state and can be used either for the manufacture of thermoformed, extruded or spun manufactured articles having strong mechanical properties and high heat resistance, or for mixing with thermoplastic polymers in order to improve the mechanical properties and workability of the latter. <IMAGE>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI942590A IT1271314B (en) | 1994-12-21 | 1994-12-21 | Thermotropic liquid crystal copolyester amide derived from phenylhydroquinone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI942590A IT1271314B (en) | 1994-12-21 | 1994-12-21 | Thermotropic liquid crystal copolyester amide derived from phenylhydroquinone |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITMI942590A0 ITMI942590A0 (en) | 1994-12-21 |
| ITMI942590A1 ITMI942590A1 (en) | 1996-06-21 |
| IT1271314B true IT1271314B (en) | 1997-05-27 |
Family
ID=11370038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITMI942590A IT1271314B (en) | 1994-12-21 | 1994-12-21 | Thermotropic liquid crystal copolyester amide derived from phenylhydroquinone |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1271314B (en) |
-
1994
- 1994-12-21 IT ITMI942590A patent/IT1271314B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI942590A0 (en) | 1994-12-21 |
| ITMI942590A1 (en) | 1996-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19940930 |