Heating Insulating Laminated Glass

• US 20110300356A1
• Filed: 02/22/2010
• Published: 12/08/2011
• Est. Priority Date: 02/27/2009
• Status: Abandoned Application

• Current Assignee: Central Glass Company Limited
• Original Assignee: Central Glass Company Limited
• Inventors: Takamatsu, Atsushi, Sakamoto, Hiromichi, Izutani, Kensuke
• Application Number:
  US13/148,010
• Publication Number:
  US 20110300356A1
• Time in Patent Office: Days
• US Class Current: 428/212
• CPC Class Codes: B32B 1/00 Layered products having a non-planar shape
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/1011 having predetermined tint or excitation purity
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10201 Dielectric coatings
• CPC Class Codes: B32B 17/10357 comprising a tinted intermediate film
• CPC Class Codes: B32B 17/10633 Infrared radiation absorbing or reflecting agents
• CPC Class Codes: B32B 17/10651 comprising colorants, e.g. dyes or pigments
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 17/10853 the membrane being bag-shaped
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree

Abstract

Disclosed is a heat insulating laminated glass that includes at least two glass plates and an intermediate film member by which the at least two glass plates are laminated together, wherein the intermediate film member has two intermediate films and a functional plastic film sheet arranged between the two intermediate films and formed with an infrared reflecting layer and an infrared absorbing layer. This glass attains a high visible light transmittance and good heat insulating properties against solar radiation.

Claims

1. A heat insulating laminated glass, comprising:

at least two glass plates; and

an intermediate film member by which said at least two glass plates are laminated together,

wherein the intermediate film member has two intermediate films and a functional plastic film sheet arranged between the two intermediate films and formed with an infrared reflecting layer and an infrared absorbing layer.

2. The heat insulating laminated glass according to claim 1, wherein the infrared reflecting layer is in the form of either a multilayer film laminate that has oxide films of high and low refractive indexes alternately laminated on each other, a multilayer film laminate that has two kinds of polymer thin films of different refractive indexes alternately laminated on each other, or a metal film.

3. The heat insulating laminated glass according to claim 1, wherein the infrared absorbing layer is in the form of either a plastic film having conductive fine particles dispersed therein, a plastic film laminate that has a plastic film and a resin film having conductive fine particles dispersed therein and formed on a surface of the plastic film, a plastic film having an infrared absorbing pigment dispersed therein, or a plastic film laminate that has a plastic film and a resin film having an infrared absorbing pigment dispersed therein and formed on a surface of the plastic film.

4. The heat insulating laminated glass according to claim 1, wherein one of the intermediate films arranged in contact with the infrared absorbing layer contains therein conductive fine particles as an infrared absorbing material.

5. The heat insulating laminated glass according to claim 1, wherein one of the intermediate films arranged in contact with the infrared absorbing layer contains therein either a pigment or a dye as an infrared absorbing material.

6. The heat insulating laminated glass according to claim 1, wherein the heat insulating laminated glass has a visible light transmittance of 70% or higher and is used for an automotive window.