Liquid-crystal polymer, laminated material, liquid-crystal polymer solution, and method of forming liquid-crystal polymer film

Patent metadata

Field	Value
Publication number	US-2021002554-A1
Application number	US-202016918551-A
Country	US
Kind code	A1
Filing date	Jul 1, 2020
Priority date	Jul 2, 2019
Publication date	Jan 7, 2021
Grant date	—

Abstract

Liquid-crystal polymer is composed of the following repeating units: 10 mol % to 35 mol % of

10 mol % to 35 mol % of

10 mol % to 50 mol % of

and 10 mol % to 40 mol % of

10 mol % to 40 mol % of

or a combination thereof. Each of AR 1 , AR 2 , AR 3 , and AR 4 is independently AR 5 or AR 5 -Z-AR 6 , in which each of AR 5 and AR 6 is independently

or a combination thereof, and Z is —O—,

or C 1-5 alkylene group. Each of X and Y is independently H, C 1-5 alkyl group, CF 3 , or

wherein R 2 is H, CH 3 , CH(CH 3 ) 2 , C(CH 3 ) 3 , CF 3 , or

n=1 to 4 ; and wherein R 1 is C 1-5 alkylene group.

First claim

What is claimed is:

1 . A liquid-crystal polymer, being composed of the following repeating units:
10 mol % to 35 mol % of

10 mol % to 35 mol % of

10 mol % to 50 mol % of

and
10 mol % to 40 mol % of

10 mol % to 40 mol % of

or a combination thereof,
wherein each of AR 1 , AR 2 , AR 3 , and AR 4 is independently AR 5 or AR 5 -Z-AR 6 , in which each of AR 5 and AR 6 is independently

or a combination thereof, and Z is —O—,

or C 1-5 alkylene group, wherein each of X and Y is independently H, C 1-5 alkyl group, CF 3 , or

wherein R 2 is H, CH 3 , CH(CH 3 ) 2 , C(CH 3 ) 3 , CF 3 , or

n=1 to 4; and wherein R 1 is C 1-5 alkylene group.

2 . The liquid-crystal polymer as claimed in claim 1 , wherein (1)

or a combination thereof.

3 . The liquid-crystal polymer as claimed in claim 1 , wherein (2)

is

4 . The liquid-crystal polymer as claimed in claim 1 , wherein (3)

is

or a combination thereof.

5 . The liquid-crystal polymer as claimed in claim 1 , wherein ( 4 a )

is

6 . The liquid-crystal polymer as claimed in claim 1 , wherein ( 4 b )

is

7 . The liquid-crystal polymer as claimed in claim 1 , having a weight average molecular weight (Mw) of 1,000 to 1,000,000.

8 . A laminated material, comprising:
a support; and a liquid-crystal polymer film disposed on the support, wherein the liquid-crystal polymer film includes the liquid-crystal polymer as claimed in claim 1 .

9 . The laminated material as claimed in claim 8 , wherein the liquid-crystal polymer film has a thickness of 1 micrometer to 100 micrometers.

10 . The laminated material as claimed in claim 8 , wherein the support comprises copper foil, glass, or aluminum foil.

11 . The laminated as claimed in claim 8 , further comprising an adhesive layer disposed between the support and the liquid-crystal polymer film.

12 . A liquid-crystal polymer solution, comprising:
100 parts by weight of solvent; and 0.01 to 100 parts by weight of the liquid-crystal polymer as claimed in claim 1 .

13 . The liquid-crystal polymer solution as claimed in claim 12 , wherein the solvent comprises halogen-containing solvent, ether solvent, ketone solvent, ester solvent, carbonate solvent, amine solvent, nitrile solvent, amide solvent, nitro solvent, sulfide solvent, phosphide solvent, paraffin, olefin, alcohol, aldehyde, aromatic hydrocarbon, terpene, hydrogenated hydrocarbon, heterocyclic compound, or a combination thereof.

14 . The liquid-crystal polymer solution as claimed in claim 12 , further comprising another resin, and the other resin comprises thermoplastic resin or thermosetting resin.

15 . The liquid-crystal polymer solution as claimed in claim 12 , further comprising an additive, and the additive comprises inorganic filler, organic filler, anti-oxidant, UV absorber, thermal stabilizer, light stabilizer, anti-aging agent, toughening agent, plasticizer, crosslinking agent, additives for coating inks, or a combination thereof.

16 . A method of forming liquid-crystal polymer film, comprising:
coating the liquid-crystal polymer solution as claimed in claim 12 onto a support; and removing the solvent to form a liquid-crystal polymer film on the support.

17 . The method as claimed in claim 16 , wherein the support comprises copper foil, glass, or aluminum foil.

18 . The method as claimed in claim 16 , further comprising removing the support after forming the liquid-crystal polymer film on the support.

Assignees

• Ind Tech Res Inst

Inventors

• Chu Yu-Lin
• Chiu Jen-Chun
• Gu Zu-Chiang
• Ho Po-Hsien
• Chen Meng-Hsin
• Lin Chih-Hsiang

Classifications

• B32B15/20

  comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} · CPC title

• C08J2367/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) · CPC title

• C22C19/00

  Alloys based on nickel or cobalt · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• C08J5/18

  Manufacture of films or sheets · CPC title