Wholly aromatic liquid crystalline polyester resin
AssigneeJxtg Nippon Oil & Energy Corporation
InventorsNozomi Akiyama, Hiroshi Matsuura
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Abstract
Provided is a wholly aromatic liquid crystalline polyester resin having excellent heat resistance and formability. The wholly aromatic liquid crystalline polyester resin comprises structural units represented by the following formulae (I) to (V) as essential structural units, wherein the composition ratio (mol %) of the structural units (I) to (V) in the wholly aromatic liquid crystalline polyester satisfies the following conditions: 50 mol %≤structural unit (I)≤75 mol %; 6 mol %≤structural unit (II)≤20 mol %; 1 mol %≤structural unit (III)≤21.5 mol %; 0.5 mol %≤structural unit (IV)≤10.5 mol %; 2.5 mol %≤structural unit (V)≤22 mol %; structural unit (III)>structural unit (IV).
Claims20
A wholly aromatic liquid crystalline polyester resin, wherein
- the wholly aromatic liquid crystalline polyester resin comprises a polymer produced by polymerization of monomers giving structural units represented by the following formulae (I), (II), (III), (IV), and (V):
- as essential structural units, wherein a composition ratio (mol %) of the structural units (I) to (V) in the wholly aromatic liquid crystalline polyester resin satisfies the following conditions:
- 50 mol %≤structural unit (I)≤75 mol %;
- 6 mol %≤structural unit (II)≤20 mol %;
- 1 mol %≤structural unit (III)≤21.5 mol %;
- 0.5 mol %≤structural unit (IV)≤10.5 mol %;
- 2.5 mol %≤structural unit (V)≤22 mol %;
- and
- structural unit (III)>structural unit (IV).
Dependencies are inferred from the claim text.