Conductive polyarylene sulfide resin composition

Patent metadata

Field	Value
Publication number	US-11274207-B2
Application number	US-201816500031-A
Country	US
Kind code	B2
Filing date	Oct 30, 2018
Priority date	Oct 30, 2017
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

The present invention provides a polyarylene sulfide resin composition comprising a mixture of polyarylene sulfide and a binder resin having excellent electrical conductivity and high temperature stability.

First claim

The invention claimed is:

1. A conductive polyarylene sulfide resin composition comprising:
a mixture of polyarylene sulfide and a binder resin, the binder resin having a decomposition temperature (Td) of 310° C. or more, wherein the binder resin comprises at least one selected from the group consisting of polystyrene sulfonate and aromatic sulfonate,
wherein the binder resin is comprised in an amount of 5 wt % or more to less than 50 wt %, based on a total weight of the mixture.

2. The conductive polyarylene sulfide resin composition of claim 1 , wherein the polyarylene sulfide is polyphenylene sulfide.

3. The conductive polyarylene sulfide resin composition of claim 1 , wherein the polyarylene sulfide has a number average molecular weight of 5,000 to 100,000 g/mol, and a melt mass-flow rate (MFR) of 10 to 10,000 g/10 min, the MFR being measured at 315° C. under a load of 2.16 kg.

4. The conductive polyarylene sulfide resin composition of claim 1 , wherein the polyarylene sulfide has a melting temperature (Tm) of 220 to 350° C., and a crystallization temperature (Tc) of 200 to 330° C.

5. The conductive polyarylene sulfide resin composition of claim 1 , wherein the binder resin is present in the mixture in an amount of 20 wt % to 40 wt %, based on the total weight of the mixture.

6. The conductive polyarylene sulfide resin composition of claim 1 , wherein the binder resin has a weight average molecular weight of 10,000 to 1,000,000 g/mol.

7. A resin composition for forming a conductive polymer film, comprising the conductive polyarylene sulfide resin composition of claim 1 .

8. A method for preparing a conductive polymer film comprising: pressurizing and heating the resin composition for forming a conductive polymer film of claim 7 at a temperature of 200 to 350° C. under a pressure of 1 to 10 MPa for 10 seconds or more to 10 minutes or less.

9. A conductive polymer film comprising: polyarylene sulfide and a binder resin, the binder resin having a decomposition temperature (Td) of 310° C. or more in a weight ratio of 95:5 or more to less than 50:50, wherein the binder resin comprises at least one selected from the group consisting of polystyrene sulfonate and aromatic sulfonate,
wherein a thickness is 0.1 to 0.2 mm and a sheet resistance value is 10 9 to 10 12 Ω/sq.

Assignees

• Lg Chemical Ltd

Inventors

• Ryu Hyun Woog
• Han Joong Jin
• Park Eunju
• Jung Kwonsu
• Kim Hansol
• Chae Jong Hyun
• Kim Daeil

Classifications

• C08L2201/08

  Stabilised against heat, light or radiation or oxydation · CPC title

• C08J5/18

  Manufacture of films or sheets · CPC title

• C09J181/02

  Polythioethers; Polythioether-ethers · CPC title

• C09J181/00 Primary

  Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Adhesives based on polysulfones; Adhesives based on derivatives of such polymers · CPC title

• C08L81/02 Primary

  Polythioethers; Polythioether-ethers · CPC title