ANTI-FOGGING ARTICLE AND MANUFACTURING METHOD THEREOF

• US 20170015863A1
• Filed: 09/27/2016
• Published: 01/19/2017
• Est. Priority Date: 04/01/2014
• Status: Abandoned Application

• Current Assignee: AGC, Inc.
• Original Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Inventors: Sugihara, Yosuke, KODAIRA, Hirokazu, Mori, Yusuke, Yoneda, Takashige
• Application Number:
  US15/277,143
• Publication Number:
  US 20170015863A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 17/10 of synthetic resin
• CPC Class Codes: B32B 2264/102 Oxide or hydroxide
• CPC Class Codes: B32B 2307/554 Wear resistance
• CPC Class Codes: B32B 2307/584 Scratch resistance
• CPC Class Codes: B32B 2307/726 Permeability to liquids, absorption
• CPC Class Codes: B32B 2551/08 Mirrors
• CPC Class Codes: B32B 2605/00 Vehicles
• CPC Class Codes: B32B 5/16 characterised by features of a layer formed of particles, e.g. chips, powder or granules layer formed of natural mineral particles B32B19/00; layer being formed of wood fibres, chips or particles B32B21/02
• CPC Class Codes: C03C 17/34 with at least two coatings having different compositions C03C17/44 takes precedence
• CPC Class Codes: C03C 17/42 at least one coating of an organic material and at least one non-metal coating
• CPC Class Codes: C03C 2217/445 Organic continuous phases
• CPC Class Codes: C03C 2217/478 Silica
• CPC Class Codes: C03C 2217/75 Hydrophilic and oleophilic coatings
• CPC Class Codes: C08K 2201/003 Additives being defined by their diameter
• CPC Class Codes: C08K 3/36 Silica
• CPC Class Codes: C09D 183/02 Polysilicates
• CPC Class Codes: C09D 183/04 Polysiloxanes
• CPC Class Codes: C09D 183/06 containing silicon bound to oxygen-containing groups C09D183/12 takes precedence
• CPC Class Codes: C09D 5/00 Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced electrically insulating plastics, resins or waxes H01B3/30; Filling pastes
• CPC Class Codes: C09D 7/67 Particle size smaller than 100 nm

Abstract

An antifogging article excellent in both an antifogging property and abrasion resistance and a manufacturing method thereof are provided. The antifogging article includes: a substrate; a water-absorbing resin layer disposed on the substrate; and an overcoat layer disposed on the water-absorbing resin layer and including: a hydrolyzed condensate of an alkoxysilane compound; and silica particles, wherein a film thickness of the overcoat layer is 20 to 350 nm and the overcoat layer is formed from an overcoat composition containing 90 to 45 parts by mass of the alkoxysilane compound and 10 to 55 parts by mass of the silica particles relative to total 100 parts by mass of the alkoxysilane compound and the silica particles.

Claims

1. An antifogging article comprising:

a substrate;

a water-absorbing resin layer disposed on the substrate; and

an overcoat layer disposed on the water-absorbing resin layer and comprising a hydrolyzed condensate of an alkoxysilane compound and silica particles,

wherein a film thickness of the overcoat layer is 20 to 350 nm and the overcoat layer is formed from an overcoat composition containing 90 to 45 parts by mass of the alkoxysilane compound and 10 to 55 parts by mass of the silica particles relative to total 100 parts by mass of the alkoxysilane compound and the silica particles.

2. The antifogging article according to claim 1,

wherein the alkoxysilane compound is a compound represented by the following general formula (I),

(R¹O)_pSiR²_(4-p) 

 

(I)

where each R¹ independently represents an alkyl group having 1 to 4 carbon atoms, each R² independently represents an alkyl group having 1 to 10 carbon atoms, which may have a substituent, and p represents the number of 1 to 4.

3. The antifogging article according to claim 1,

wherein an average particle diameter of the silica particle is 10 to 100 nm.

4. An antifogging article comprising:

a substrate;

a water-absorbing resin layer disposed on the substrate; and

an overcoat layer disposed on the water-absorbing resin layer,

wherein a water vapor transmission rate of the overcoat layer measured in conformity with JIS K7129 is 75.0 to 99.8% and a haze value change of the antifogging article before and after performing an abrasion test of a load 4.90 N and 1,000 rotations with respect to a surface of the overcoat layer in conformity with JIS R3212 is 15% or less.

5. A manufacturing method of an antifogging article, the method comprising:

forming a water-absorbing resin layer on a substrate;

forming an overcoat composition layer by applying an overcoat composition containing, 90 to 45 parts by mass of an alkoxysilane compound and 10 to 55 parts by mass of silica particles relative to total 100 parts by mass of the alkoxysilane compound and the silica particles on the water-absorbing resin layer; and

forming an overcoat layer by heat-treating the overcoat composition layer.