Antifog laminate, article, manufacturing method thereof, and anti-fog method

Patent metadata

Field	Value
Publication number	US-10829410-B2
Application number	US-201615765419-A
Country	US
Kind code	B2
Filing date	Oct 4, 2016
Priority date	Oct 27, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

An anti-fogging laminate including: a substrate; and an anti-fogging layer on the substrate where a surface of the anti-fogging layer is flat, wherein the anti-fogging layer includes a hydrophilic molecular structure; and wherein the anti-fogging layer has an elastic recovery of 90% or more, a coefficient of dynamic friction of 0.40 or less, and an average thickness of 4 μm or more.

First claim

The invention claimed is:

1. An anti-fogging laminate comprising:
a substrate; and
an anti-fogging layer on the substrate where a surface of the anti-fogging layer is flat, such that the surface does not have any intentionally formed convex portions or concave portions,
wherein the anti-fogging layer comprises a hydrophilic molecular structure; and
wherein the anti-fogging layer has an elastic recovery of 90% or more, a coefficient of dynamic friction of 0.40 or less, and an average thickness of 4 μm or more.

2. The anti-fogging laminate according to claim 1 , wherein the surface of the anti-fogging layer has a pure water contact angle of 70° or more and a hexadecane contact angle of 35° or more.

3. The anti-fogging laminate according to claim 1 , wherein the anti-fogging layer comprises a hydrophobic molecular structure.

4. The anti-fogging laminate according to claim 1 , wherein the anti-fogging laminate comprises an anchor layer disposed between the substrate and the anti-fogging layer.

5. The anti-fogging laminate according to claim 4 , wherein the substrate is a substrate made of glass.

6. The anti-fogging laminate according to claim 4 , wherein the anchor layer has an average thickness of 0.5 μm to 5 μm.

7. The anti-fogging laminate according to claim 4 , wherein the anchor layer is a cured product of an active energy ray curable resin composition,
wherein an active energy curable component in the active energy ray curable resin composition comprises 65% by mass or more of urethane (meth)acrylate and comprises at least one of an active energy curable component having a hydroxyl group and an active energy curable component having an ethylene oxide structure; and
wherein the active energy ray curable resin composition comprises a photopolymerization initiator.

8. The anti-fogging laminate according to claim 7 , wherein the active energy curable component in the active energy ray curable resin composition comprises 15% by mass or more of at least one of the active energy curable component having a hydroxyl group and the active energy curable component having an ethylene oxide structure.

9. A product comprising:
the anti-fogging laminate according to claim 1 on a surface thereof.

10. A method for manufacturing the product according to claim 9 , the method comprising:
heating the anti-fogging laminate; and
molding the anti-fogging laminate heated into a desired shape.

11. The method for manufacturing the product according to claim 10 ,
wherein the heating is performed by infrared heating.

12. An anti-fogging method comprising:
laminating the anti-fogging laminate according to claim 1 on a surface of a product to thereby prevent the product from fogging.

13. An anti-fogging method comprising:
throwing water having a temperature of an ordinary temperature or higher on the anti-fogging layer, which has been fogged with steam, of the anti-fogging laminate according to claim 1 to thereby prevent the anti-fogging layer from fogging.

Assignees

• Dexerials Corp

Inventors

• Mizuno Mikihisa
• Sakamoto Shogo
• Hara Shinobu
• Suzuki Ryo

Classifications

• C08F222/1065

  of alcohol terminated (poly)urethanes, e.g. urethane(meth)acrylates · CPC title

• C03C2217/75

  Hydrophilic and oleophilic coatings · CPC title

• B32B2307/73

  Hydrophobic · CPC title

• B32B38/1866

  conforming the layers or laminate to a convex or concave profile · CPC title

• B32B27/26

  using curing agents · CPC title