Composition containing fluorinated polymer and method for producing fluorinated polymer film-provided substrate

Patent metadata

Field	Value
Publication number	US-11084946-B2
Application number	US-201916291520-A
Country	US
Kind code	B2
Filing date	Mar 4, 2019
Priority date	Oct 5, 2016
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

To provide a composition which comprises a fluorinated polymer having an alicyclic ring, from which a film having excellent in-plane uniformity and small surface roughness can be formed by an electrospraying apparatus, and a method for producing a film-provided substrate using the composition. A composition comprising a fluorinated polymer having an alicyclic ring and a solvent, wherein the solvent contains at least one high boiling point solvent having a boiling point of at least 150° C., and the solvent has a dielectric constant of at least 5. And, a method for producing a film-provided substrate, which comprises applying the composition to a substrate by an electrospraying apparatus to form a film containing the fluorinated polymer.

First claim

What is claimed is:

1. A composition comprising a fluorinated polymer having an alicyclic ring, and a solvent, wherein the solvent has a dielectric constant of at least 5 and comprises a solvent X which is a perfluoro compound, a solvent Y which is at least one of a hydrofluorocarbon and a hydrofluoroether, and a solvent Z which is a fluorinated alcohol, and
at least one of the solvent X, the solvent Y, and the solvent Z has a boiling point of at least 150° C.,
wherein the solvent has a surface tension of from 15.5 to 16.0 mN/m.

2. The composition according to claim 1 , wherein the fluorinated polymer has an alicyclic ring in its main chain.

3. The composition according to claim 2 , wherein the fluorinated polymer having an alicyclic ring in its main chain is formed by cyclopolymerization of a cyclopolymerizable diene fluorinated monomer, or
comprises polymerized units of a monomer having a fluorinated alicyclic ring and a polymerizable double bond between carbon atoms constituting the ring of the alicyclic ring or a polymerizable double bond between a carbon atom constituting the ring of the alicyclic ring and a carbon atom not constituting the ring.

4. The composition according to claim 1 , wherein the solvent X has a dielectric constant of less than 5.

5. The composition according to claim 1 , wherein at least one of the solvent Y and the solvent Z has a boiling point of less than 150° C.

6. The composition according to claim 1 , wherein the solvent X has a boiling point of at least 150° C.

7. The composition according to claim 1 , wherein the solvent X is at least one member selected from the group consisting of a perfluorotrialkylamine and a perfluoroalicyclic compound.

8. The composition according to claim 1 , wherein the solvent X is at least one member selected from the group consisting of heptacosafluorotributylamine, perfluorotripentylamine, 1,1,2,2,3,3,4,4,4a,4b,5,5,6,6,7,7,8,8,8a,9,9,10,10,10a-tetracosafluorophenanthrene, 1,1,2,2,3,3,4,4,4a,4b,5,5,6,6,7,7,8,8,8a,9,9,9a-docosafluorofluorene and 1,1,2,2,3,3,4,4,4a,5,5,6,6,7,7,8,8a-heptadecafluorodecahydro-8-(trifluoromethyl)naphthalene.

9. The composition according to claim 1 , wherein the solvent Y is at least one member selected from the group consisting of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane and 1,1,1,2,3,4,4,5,5,5-decafluoro-3-methoxy-2-(trifluoromethyl)pentane.

10. The composition according to claim 1 , wherein the solvent Z is at least one member selected from the group consisting of hexafluoro-2-propanol, 2,2,2-trifluoroethanol, 2,2,3,3,3-pentafluoro-l-propanol, 1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether, 2,2,3,3-tetrafluoropropanol, 2,2,3,3,4,4,5,5-octafluoro-1-pentanol and 1H,1H,2H,2H-tridecafluoro-1-n-octanol.

11. The composition according to claim 1 , wherein based on a total mass of the solvent X, the solvent Y and the solvent Z, the content of the solvent X is from 35 to 60 mass %, the content of the solvent Y is from 35 to 60 mass %, and the content of the solvent Z is from 5 to 30 mass %.

12. A method for producing a film-provided substrate, which comprises
applying the composition as defined in claim 1 to a substrate by an electrospraying apparatus, and removing the solvent to form a film containing the fluorinated polymer thereby forming the film-provided substrate.

13. The composition according to claim 1 , wherein the mass ratio of solvent X:solvent Y:solvent Z is 35-52:35-57:5-13.

14. The composition according to claim 1 , wherein the solvent has a dielectric constant of from 5.15 to 7.38.

15. The composition according to claim 1 , wherein:
the solvent X has a dielectric constant of less than 5 and a boiling point of at least 150° C.;
at least one of the solvent Y and the solvent Z has a boiling point of less than 150° C.;
the mass ratio of solvent X:solvent Y:solvent Z is 35-52:35-57:5-13; and
the solvent has a dielectric constant of from 5.15 to 7.38.

16. A composition comprising a fluorinated polymer having an alicyclic ring, and a solvent, wherein the solvent has a dielectric constant of at least 5 and comprises a solvent X which is a perfluoro compound, a solvent Y which is at least one of a hydrofluorocarbon and a hydrofluoroether, and a solvent Z which is a fluorinated alcohol, and
at least one of the solvent X, the solvent Y, and the solvent Z has a boiling point of at least 150° C., wherein
the solvent X is at least one selected from the group consisting of heptacosafluorotributylamine; 1,1,2,2,3,3,4,4,4a,4b,5,5,6,6,7,7,8,8,8a,9,9, 10,10,10a-tetracosafluorophenanthrene; 1,1,2,2,3,3,4,4,4a,4b,5,5, 6,6,7, 7,8,8,8a,9,9,9a-docosafluorofluorene; 1,1,2,2,3,3,4,4,4a,5,5,6,6,7,7,8,8a-heptadecafluorodecahydro-8-(trifluoromethyl)naphthalene; and perfluorotripentylamine,
the solvent Y is 1,1,1,2,3,4,4,5,5,5-decafluoro-3-methoxy-2-(trifluoromethyl)pentane, and
the solvent Z is at least one selected from the group consisting of hexafluoro-2 -propanol (HFIP); 2,2,2-trifluoroethanol (TFEO); and 2,2,3,3,3-pentafluoro-1-propanol.

17. The composition according to claim 16 , wherein
the mass ratio of solvent X:solvent Y:solvent Z is 35-52:35-57:5-13;
the solvent has a dielectric constant of from 5.15 to 7.38; and
the solvent has a surface tension of from 15.5 to 16.0 mN/m.

18. The composition according to claim 16 , wherein the fluorinated polymer has an alicyclic ring in its main chain.

19. The composition according to claim 18 , wherein the fluorinated polymer having an alicyclic ring in its main chain is formed by cyclopolymerization of a cyclopolymerizable diene fluorinated monomer, or
comprises polymerized units of a monomer having a fluorinated alicyclic ring and a polymerizable double bond between carbon atoms constituting the ring of the alicyclic ring or a polymerizable double bond between a carbon atom constituting the ring of the alicyclic ring and a carbon atom not constituting the ring.

20. The composition according to claim 16 , wherein based on a total mass of the solvent X, the solvent Y and the solvent Z, the content of the solvent X is from 35 to 60 mass %, the content of the solvent Y is from 35 to 60 mass %, and the content of the solvent Z is from 5 to 30 mass %.

21. A method for producing a film-provided substrate, which comprises
applying the composition as defined in claim 16 to a substrate by an electrospraying apparatus, and removing the solvent to form a film containing the fluorinated polymer thereby forming the film-provided substrate.

22. The composition according to claim 16 , wherein the mass ratio of solvent X:solvent Y:solvent Z is 35-52:35-57:5-13.

23. The composition according to claim 16 , wherein the solvent has a dielectric constant of from 5.15 to 7.38.

24. The composition according to claim 16 , wherein the solvent has a surface tension of from 15.5 to 16.0 mN/m.

Assignees

• Agc Inc

Inventors

• Takeuchi Tamami
• Maekawa Shingo
• Ito Masahiro

Classifications

• C09D201/04 Primary

  containing halogen atoms · CPC title

• C08K5/06

  Ethers; Acetals; Ketals; Ortho-esters · CPC title

• C08K5/02

  Halogenated hydrocarbons {(C08K5/0091 takes precedence)} · CPC title

• C08K5/05

  Alcohols; Metal alcoholates · CPC title

• C08L27/12

  containing fluorine atoms · CPC title