Method of producing a film-attached resin base

Patent metadata

Field	Value
Publication number	US-11174362-B2
Application number	US-201716098456-A
Country	US
Kind code	B2
Filing date	Feb 22, 2017
Priority date	May 26, 2016
Publication date	Nov 16, 2021
Grant date	Nov 16, 2021

Abstract

A method of producing a film-attached resin base may include supplying a surface treatment gas including at least fluorine gas to a resin base including reinforcing fibers so that embrittled regions are formed in a surface of the resin base and the reinforcing fiber present near the surface of the resin base is modified at least partially; removing at least the embrittled regions so that an uneven surface is formed on the resin base and the reinforcing fiber is at least partially exposed in the uneven surface; and forming a film onto the uneven surface of the resin base.

First claim

The invention claimed is:

1. A method of producing a film-attached resin base, the method comprising:
supplying a surface treatment gas including at least fluorine gas to a resin base in which glass fibers are dispersed so that embrittled regions of the resin base are formed in a surface of the resin base and the glass fibers present near the surface of the resin base are modified at least partially;
removing the embrittled regions of the resin base and the modified portions of the glass fibers at least by immersing the resin base in a first solution having a different composition than a composition of the surface treatment gas after supplying the surface treatment gas so that an uneven surface is formed on the resin base and the glass fibers present near the surface of the resin base are at least partially exposed and projected in the uneven surface; and
forming a film onto the uneven surface of the resin base,
wherein a roughness of the uneven surface is in accordance with a difference between a state of the glass fibers after being modified by the fluorine gas and a state of the resin base after being embrittled by the fluorine gas.

2. The method of producing a film-attached resin base according to claim 1 , wherein the removal of the embrittled regions form recesses, each of the recesses being recessed along a periphery of a partially exposed glass fiber in the uneven surface and being filled with the film.

3. The method of producing a film-attached resin base according to claim 1 , wherein the glass fibers present near the surface of the resin base are at least partially porosified with the surface treatment gas.

4. The method of producing a film-attached resin base according to claim 1 , wherein the first solution is an acidic solution.

5. The method of producing a film-attached resin base according to claim 4 , wherein the acidic solution includes one or more acids selected from a group consisting of hydrochloric acid, sulfuric acid, and nitric acid.

6. The method of producing a film-attached resin base according to claim 1 , wherein the resin base includes 10 to 60 mass percent of the glass fibers.

7. The method of producing a film-attached resin base according to claim 6 , wherein the resin base includes the glass fibers having mass percent greater than 30.

8. The method of producing a film-attached resin base according to claim 1 , wherein the film is a plating film, and said forming a film onto the uneven surface of the resin base comprises electroless plating.

9. The method of producing a film-attached resin base according to claim 1 , wherein the film-attached resin base is a sliding part.

10. The method of producing a film-attached resin base according to claim 9 , wherein the film-attached resin base is a slider for a slide fastener.

11. The method of producing a film-attached resin base according to claim 1 , wherein the film is a coating film.

12. The method of producing a film-attached resin base according to claim 1 , wherein the glass fibers present near the surface of the resin base have a diameter in a range of 5 μm to 20 μm and a length in a range of 100 μm to 250 μm.

13. The method of producing a film-attached resin base according to claim 1 , wherein all of the glass fibers dispersed in the resin base are bare glass fibers.

14. The method of producing a film-attached resin base according to claim 1 , wherein the glass fibers dispersed in the resin base are in direct contact with the resin base to ensure glass-resin contact.

15. The method of producing a film-attached resin base according to claim 1 , wherein a peel strength of the film is equal to or greater than 0.4 kN/m.

16. The method of producing a film-attached resin base according to claim 1 , further comprising washing the immersed resin base using a second solution, wherein said washing occurs after said removing the embrittled regions of the resin base and the modified portions of the glass fibers and before said forming a film onto the uneven surface of the resin base.

17. The method of producing a film-attached resin base according to claim 16 , wherein said second solution is an alkaline solution.

18. The method of producing a film-attached resin base according to claim 16 , wherein the film is a plating film, and said forming a film onto the uneven surface of the resin base comprises electroless plating that includes application of catalyst, acceleration by accelerator and deposition of the plating film.

19. The method of producing a film-attached resin base according to claim 18 , wherein the film-attached resin base is a slider for a slide fastener, the slider having a top wing, a bottom wing and a coupling pillar that couples the top and the bottom wings, and wherein
the film is formed at least on opposed inner surfaces of the top and bottom wings and a surface of the coupling pillar extending between the opposed inner surfaces.

Assignees

• Ykk Corp

Inventors

• Abe Takuya

Classifications

• C25D5/56

  of plastics · CPC title

• B05D3/0446

  of a polymeric substrate · CPC title

• B05D2201/02

  Polymeric substrate · CPC title

• B05D3/10

  by other chemical means · CPC title

• B05D7/02

  to macromolecular substances, e.g. rubber (treatment or coating of shaped articles made of macromolecular substances C08J7/00) · CPC title