Resin solution composition

Patent metadata

Field	Value
Publication number	US-10752791-B2
Application number	US-201615767163-A
Country	US
Kind code	B2
Filing date	Oct 7, 2016
Priority date	Oct 16, 2015
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

The present invention relates to a resin solution composition containing at least one resin selected from the group consisting of aromatic polysulfones, aromatic polyamideimides, aromatic polyetherimides, aromatic polyimides and aromatic polyamic acids, a sulfone-based solvent, and an ester-based solvent, wherein in this resin solution composition, an amount of the resin, relative to the total mass of the resin solution composition, is at least 10% by mass but not more than 50% by mass, and an amount of the ester-based solvent, relative to the total amount of the sulfone-based solvent and the ester-based solvent, is at least 15% by mass but not more than 85% by mass.

First claim

The invention claimed is:

1. A resin solution composition comprising an aromatic polysulfone resin, a sulfone-based solvent, and an ester-based solvent, wherein
the resin solution composition is in a state in which uniform transparency is maintained and no gelling occurs after storage for at least one week at a temperature of 5 to 35° C.,
and in the resin solution composition,
an amount of the resin, relative to a total mass of the resin solution composition, is at least 10% by mass but not more than 50% by mass, and
an amount of the ester-based solvent, relative to a total amount of the sulfone-based solvent and the ester-based solvent, is at least 15% by mass but not more than 85% by mass.

2. The resin solution composition according to claim 1 , wherein the ester-based solvent is γ-butyrolactone or γ-valerolactone.

3. The resin solution composition according to claim 1 , wherein the ester-based solvent is γ-butyrolactone.

4. The resin solution composition according to claim 1 , wherein the sulfone-based solvent is sulfolane.

5. The resin solution composition according to claim 1 , wherein the aromatic polysulfone has a repeating unit represented by formula (1) shown below:
-Ph 1 -SO 2 -Ph 2 -O—  (1)

wherein each of Ph 1 and Ph 2 independently represents a phenylene group; and one hydrogen atom on the phenylene group may be substituted with an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms or a halogen atom, and when two or more hydrogen atoms on the phenylene group are substituted, each hydrogen atom may be independently substituted with an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms or a halogen atom.

6. A resin solution composition comprising an aromatic polysulfone resin, a sulfone-based solvent, and a ketone-based solvent, wherein
the resin solution composition is in a state in which uniform transparency is maintained and no gelling occurs after storage for at least one week at a temperature of 5 to 35° C.,
and in the resin solution composition,
an amount of the resin, relative to a total mass of the resin solution composition, is at least 10% by mass but not more than 50% by mass, and
an amount of the ketone-based solvent, relative to a total amount of the sulfone-based solvent and the ketone-based solvent, is at least 20% by mass but not more than 42% by mass.

7. The resin solution composition according to claim 6 , wherein the ketone-based solvent is acetone or methyl ethyl ketone.

8. The resin solution composition according to claim 6 , wherein the ketone-based solvent is acetone.

9. The resin solution composition according to claim 6 , wherein the sulfone-based solvent is sulfolane.

10. The resin solution composition according to claim 6 , wherein the aromatic polysulfone has a repeating unit represented by formula (1) shown below:
-Ph 1 -SO 2 -Ph 2 -O—  (1)

wherein each of Ph 1 and Ph 2 independently represents a phenylene group; and one hydrogen atom on the phenylene group may be substituted with an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms or a halogen atom, and when two or more hydrogen atoms on the phenylene group are substituted, each hydrogen atom may be independently substituted with an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms or a halogen atom.

11. A resin solution composition comprising an aromatic polysulfone resin, a sulfone-based solvent, an ester-based solvent, and a ketone-based solvent, wherein
the resin solution composition is in a state in which uniform transparency is maintained and no gelling occurs after storage for at least one week at a temperature of 5 to 35° C.,
and in the resin solution composition,
an amount of the resin, relative to a total mass of the resin solution composition, is at least 10% by mass but not more than 50% by mass,
an amount of the ester-based solvent, relative to a total amount of the sulfone-based solvent, the ester-based solvent and the ketone-based solvent, is at least 15% by mass but not more than 85% by mass, and
an amount of the ketone-based solvent, relative to a total amount of the sulfone-based solvent, the ester-based solvent and the ketone-based solvent, is not more than 42% by mass.

12. The resin solution composition according to claim 11 , wherein the ester-based solvent is γ-butyrolactone or γ-valerolactone.

13. The resin solution composition according to claim 11 , wherein, the ester-based solvent is γ-butyrolactone.

14. The resin solution composition according to claim 11 , wherein the ketone-based solvent is acetone or methyl ethyl ketone.

15. The resin solution composition according to claim 11 , wherein the ketone-based solvent is acetone.

16. The resin solution composition according to claim 11 , wherein the sulfone-based solvent is sulfolane.

17. The resin solution composition according to claim 11 , wherein the aromatic polysulfone has a repeating unit represented by formula (1) shown below:
-Ph 1 -SO 2 -Ph 2 -O—  (1)

wherein each of Ph 1 and Ph 2 independently represents a phenylene group; and one hydrogen atom on the phenylene group may be substituted with an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms or a halogen atom, and when two or more hydrogen atoms on the phenylene group are substituted, each hydrogen atom may be independently substituted with an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms or a halogen atom.

Assignees

• Sumitomo Chemical Co

Inventors

• Ito Kazuyuki
• Matsubara Masanobu

Classifications

• C08L81/06 Primary

  Polysulfones; Polyethersulfones · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C08L79/08

  Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors · CPC title

• C09D181/06

  Polysulfones; Polyethersulfones · CPC title

• C08J3/095 Primary

  Oxygen containing compounds · CPC title