Method for producing surface-treated glass fiber film and flexible fiber substrate

Patent metadata

Field	Value
Publication number	US-9902649-B2
Application number	US-201514695369-A
Country	US
Kind code	B2
Filing date	Apr 24, 2015
Priority date	May 2, 2014
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

The present invention provides a method for producing a surface-treated glass fiber film comprising steps of: preparing a treatment solution consisting of a mixture of a hydrolysable silane compound and a partially hydrolyzed condensate thereof; coating a glass fiber film with the treatment solution so that the attached amount of the mixture is 2% by mass or more and 90% by mass or less, relative to 100% by mass of the surface-treated glass fiber film and drying the same; and heat-treating the glass fiber film coated. There can be provided a method for producing a surface-treated glass fiber film having high strength, a low average coefficient of linear expansion, a high storage rigidity at high temperature and excellent in heat resistance, flexibility, electric insulation, dimensional stability, and surface homogeneity, with less environmental impact.

First claim

What is claimed is:

1. A method for producing a surface-treated glass fiber film comprising steps of: preparing a treatment solution consisting of a mixture of a hydrolysable silane compound and a partially hydrolyzed condensate thereof; coating a glass fiber film with the treatment solution so that the attached amount of the mixture is 2% by mass or more and 90% by mass or less, relative to 100% by mass of the surface-treated glass fiber film and drying the same; and heat-treating the glass fiber film coated.

2. The method for producing a surface-treated glass fiber film according to claim 1 , wherein, all or part of a bundle of glass fibers comprising the glass fiber film are bonded together by the mixture in the step of coating and drying.

3. The method for producing a surface-treated glass fiber film according to claim 1 , wherein the surface-treated glass fiber film has a value of a conventional flexural rigidity of the surface-treated glass fiber film measured by a method disclosed in JIS R 3420 that is 3 to 100 times, relative to a value of a conventional flexural rigidity of an untreated glass fiber film.

4. The method for producing a surface-treated glass fiber film according to claim 2 , wherein the surface-treated glass fiber film has a value of a conventional flexural rigidity of the surface-treated glass fiber film measured by a method disclosed in JIS R 3420 that is 3 to 100 times, relative to a value of a conventional flexural rigidity of an untreated glass fiber film.

5. The method for producing a surface-treated glass fiber film according to claim 1 , wherein the surface-treated glass fiber film has a coefficient of linear expansion in an X-Y direction of 20 ppm/° C. or less.

6. The method for producing a surface-treated glass fiber film according to claim 2 , wherein the surface-treated glass fiber film has a coefficient of linear expansion in an X-Y direction of 20 ppm/° C. or less.

7. The method for producing a surface-treated glass fiber film according to claim 3 , wherein the surface-treated glass fiber film has a coefficient of linear expansion in an X-Y direction of 20 ppm/° C. or less.

8. The method for producing a surface-treated glass fiber film according to claim 4 , wherein the surface-treated glass fiber film has a coefficient of linear expansion in an X-Y direction of 20 ppm/° C. or less.

9. The method for producing a surface-treated glass fiber film according to claim 1 , wherein the surface-treated glass fiber film has a glass transition temperature measured by a method disclosed in JIS C 6481 of not in the range of 250° C. or less.

10. The method for producing a surface-treated glass fiber film according to claim 2 , wherein the surface-treated glass fiber film has a glass transition temperature measured by a method disclosed in JIS C 6481 of not in the range of 250° C. or less.

11. The method for producing a surface-treated glass fiber film according to claim 3 , wherein the surface-treated glass fiber film has a glass transition temperature measured by a method disclosed in JIS C 6481 of not in the range of 250° C. or less.

12. The method for producing a surface-treated glass fiber film according to claim 4 , wherein the surface-treated glass fiber film has a glass transition temperature measured by a method disclosed in JIS C 6481 of not in the range of 250° C. or less.

13. The method for producing a surface-treated glass fiber film according to claim 1 , wherein the hydrolysable silane compound is one or more types of compounds selected from a halogenated silane compound, an alkoxy silane compound, a hydroxyl silane compound, and a silazane compound.

14. The method for producing a surface-treated glass fiber film according to claim 2 , wherein the hydrolysable silane compound is one or more types of compounds selected from a halogenated silane compound, an alkoxy silane compound, a hydroxyl silane compound, and a silazane compound.

15. The method for producing a surface-treated glass fiber film according to claim 3 , wherein the hydrolysable silane compound is one or more types of compounds selected from a halogenated silane compound, an alkoxy silane compound, a hydroxyl silane compound, and a silazane compound.

16. The method for producing a surface-treated glass fiber film according to claim 4 , wherein the hydrolysable silane compound is one or more types of compounds selected from a halogenated silane compound, an alkoxy silane compound, a hydroxyl silane compound, and a silazane compound.

17. A flexible fiber substrate comprising a surface-treated glass fiber film produced by the method for producing a surface-treated glass fiber film according to claim 1 .

18. A flexible fiber substrate comprising a surface-treated glass fiber film produced by the method for producing a surface-treated glass fiber film according to claim 2 .

19. A flexible fiber substrate comprising a surface-treated glass fiber film produced by the method for producing a surface-treated glass fiber film according to claim 3 .

20. A flexible fiber substrate comprising a surface-treated glass fiber film produced by the method for producing a surface-treated glass fiber film according to claim 4 .

Assignees

• Shinetsu Chemical Co

Inventors

• Hamamoto Yoshihira
• Akahane Saiko
• Shiobara Toshio

Classifications

• Y10T442/2369

  Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric · CPC title

• C03C25/40

  Organo-silicon compounds · CPC title

• C03C25/1095 Primary

  to obtain coated fabrics · CPC title

• C03C2217/78

  Coatings specially designed to be durable, e.g. scratch-resistant · CPC title