Transparent heat-shielding member

Patent metadata

Field	Value
Publication number	US-2016282529-A1
Application number	US-201615081329-A
Country	US
Kind code	A1
Filing date	Mar 25, 2016
Priority date	Mar 27, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

A transparent heat-shielding member according to the present invention includes a transparent base substrate, an infrared reflective layer and a transparent screen function layer. The infrared reflective layer includes at least one selected from a metal oxide layer and a metal nitride layer, and a metal layer. The transparent screen function layer is formed of a light diffusing layer. The light diffusing layer contains light diffusing particles and a transparent resin. The light diffusing particles are dispersed in the transparent resin. The transparent heat-shielding member has a visible light reflectance measured in accordance with JIS R3106-1998 of 12% or more and 30% or less, a haze value measured in accordance with JIS K7136-2000 of 5% or more and 35% or less, and a shading coefficient measured in accordance with JIS A5759-2008 of 0.69 or less.

First claim

What is claimed is:

1 . A transparent heat-shielding member comprising a transparent base substrate, an infrared reflective layer and a transparent screen function layer,
wherein the infrared reflective layer includes at least one selected from a metal oxide layer and a metal nitride layer, and a metal layer, the transparent screen function layer is formed of a light diffusing layer, the light diffusing layer contains light diffusing particles and a transparent resin, the light diffusing particles are dispersed in the transparent resin, and the transparent heat-shielding member has a visible light reflectance measured in accordance with JIS R3106-1998 of 12% or more and 30% or less, a haze value measured in accordance with JIS K7136-2000 of 5% or more and 35% or less, and a shading coefficient measured in accordance with JIS A5759-2008 of 0.69 or less.

2 . The transparent heat-shielding member according to claim 1 ,
wherein the transparent screen function layer enables an image projected onto a screen by a projector to be viewed from both sides as a reflected image from the projector side and as a transmitted image from an opposite side of the projector across the screen.

3 . The transparent heat-shielding member according to claim 1 ,
wherein the transparent heat-shielding member has a visible light transmittance measured in accordance with JIS A5759-2008 of 65% or more.

4 . The transparent heat-shielding member according to claim 1 , further comprising a protective layer as an outermost layer,
wherein the protective layer contains a resin selected from an ionizing radiation curable resin and a thermally curable resin.

5 . The transparent heat-shielding member according to claim 1 , further comprising a protective layer as an outermost layer,
wherein the protective layer contain a resin selected from an ionizing radiation curable resin and a thermally curable resin, the protective layer and the infrared reflective layer are joined via a primer layer, and the primer layer is made of a modified polyolefin resin.

6 . The transparent heat-shielding member according to claim 1 ,
wherein the transparent heat-shielding member has a normal emissivity measured in accordance with JIS R3106-2008 of 0.50 or less.

7 . The transparent heat-shielding member according to claim 1 ,
wherein the transparent heat-shielding member has a normal emissivity measured in accordance with JIS R3106-2008 of 0.30 or less.

8 . The transparent heat-shielding member according to claim 1 , further comprising a pressure-sensitive adhesive layer as an outermost layer.

9 . The transparent heat-shielding member according to claim 1 ,
wherein the light diffusing layer is disposed as an outermost layer, and the transparent resin contained in the light diffusing layer is a pressure-sensitive adhesive.

Assignees

• Hitachi Maxell

Inventors

• Miyata Teruhisa
• Mitsumoto Yoshimasa

Classifications

• G02B5/26

  Reflecting filters (G02B5/28 takes precedence) · CPC title

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• G02B5/208 Primary

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title

• G03B21/62

  Translucent screens · CPC title

• G02B5/0242

  by means of dispersed particles · CPC title