WATER-BASED ANTI-SOILING AGENT, ANTI-SOILING LAYER, LAYERED BODY, AND SOLAR BATTERY MODULE

• US 20160130447A1
• Filed: 01/20/2016
• Published: 05/12/2016
• Est. Priority Date: 07/24/2013
• Status: Abandoned Application

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Kaneiwa, Hideki
• Application Number:
  US15/001,258
• Publication Number:
  US 20160130447A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2457/12 Photovoltaic modules
• CPC Class Codes: C08G 77/02 Polysilicates
• CPC Class Codes: C08G 77/045 containing less than 25 silicon atoms
• CPC Class Codes: C08K 2201/017 Additives being an antistatic agent
• CPC Class Codes: C08K 3/36 Silica
• CPC Class Codes: C08K 5/56 Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
• CPC Class Codes: C09D 183/02 Polysilicates
• CPC Class Codes: C09D 5/1675 Polyorganosiloxane-containing compositions
• CPC Class Codes: C09D 7/61 inorganic
• CPC Class Codes: H02S 40/10 Cleaning arrangements
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

An object of the invention is to provide a coating layer that can suppress the attachment of contaminants at the time of fine weather or drying, in addition to the ability to be cleaned by washing with water. The invention relates to a water-based anti-soiling agent including, in a mixed manner, a siloxane oligomer expressed by General Formula (1) below; a water component; an antistatic agent; and silica fine particles, in which a component exhibiting surface activity is 0.01% by mass or greater is included in the water-based anti-soiling agent, and

• • in General Formula (1), each of R¹ to R³ independently represents an organic group having 1 to 6 carbon atoms, R⁴ represents an alkyl group having 1 to 6 carbon atoms, and n represents an integer of 2 to 20.

Claims

1. A water-based anti-soiling agent comprising, in a mixed manner:

a siloxane oligomer expressed by General Formula (1) below;

a water component;

an antistatic agent; and

silica fine particles,

wherein a component exhibiting surface activity is 0.01% by mass or greater is included in the water-based anti-soiling agent, and

2. The water-based anti-soiling agent according to claim 1, further comprising:

a catalyst that promotes condensation of a siloxane oligomer.

3. The water-based anti-soiling agent according to claim 1, further comprising:

a component exhibiting ionic surface activity.

4. The water-based anti-soiling agent according to claim 1, further comprising:

a component exhibiting nonionic surface activity.

5. The water-based anti-soiling agent according to claim 3,

wherein a content of the component exhibiting ionic surface activity is 1.0% by mass or less with respect to a total mass of the water-based anti-soiling agent.

6. The water-based anti-soiling agent according to claim 1,

wherein the antistatic agent includes metal oxide fine particles.

7. The water-based anti-soiling agent according to claim 1,

wherein a ratio of carbon in a total solid content in the water-based anti-soiling agent is 3% by mass or less.

8. The water-based anti-soiling agent according to claim 6,

wherein a primary particle diameter of metal oxide fine particles is 100 nm or less.

9. The water-based anti-soiling agent according to claim 1,

wherein a content of an organic compound having a molecular weight of 1,100 or greater included in the water-based anti-soiling agent is 0.2% by mass or less.

10. An anti-soiling coating layer that is formed by coating and drying the water-based anti-soiling agent according to claim 1.

11. The anti-soiling coating layer according to claim 10,

wherein a surface electrical resistance is 1×

10¹² co/square or less.

12. The anti-soiling coating layer according to 10,

wherein a water contact angle on a surface is 40°

or less.

13. The anti-soiling coating layer according to claim 10,

wherein an average integrating sphere transmittance in a wavelength of 300 nm to 1,200 nm is 95% or greater.

14. A layered body obtained by laminating the anti-soiling coating layer according to claim 10, as a glass layer.

15. A solar battery module having a layered body according to claim 14.