Patent · US Active

Wholly aromatic liquid crystalline polyester resin

US10968347B2 · kind B2 · utility

16Cited by

2References

20Claims

0Family size

Assignee

JXTG NIPPON OIL & ENERGY CORPORATION · JP

Inventors

Nozomi Akiyama · Oshima, JP
Hiroshi Matsuura · Tokyo, JP

Key dates

Filing date	Nov 27, 2017
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Feb 15, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.