Patent ID: 9284217
Filing Date: 2016-03-15
CPC Classification: C03C,Y10T

Claim Text:
1. A low-emissivity transparent laminate comprising: a substrate; and a coating layer, wherein the coating layer has a multilayer structure comprising a low-emissivity layer, a low-emissivity protective metal layer, a first silicon nitride layer, and a dielectric layer directly on the first silicon nitride layer, stacked sequentially from the substrate, wherein the dielectric layer includes zinc tin oxide, wherein the first silicon nitride layer has a thickness from 5 nm to 20 nm, and wherein the coating layer further comprises at least one additional silicon nitride layer on uppermost and lowermost surfaces thereof, wherein the low-emissivity layer is Ag, wherein the low-emissivity layer has a thickness from 10 nm to 25 nm, wherein the low-emissivity protective metal layer is selected from alloys of Ni and Cr, wherein the low-emissivity protective metal layer has a thickness from 1 nm to 5 nm, wherein the dielectric layer has a thickness from 5 nm to 60 nm, wherein the substrate is a transparent substrate having a visible light transmittance from 90% to 100%, wherein the substrate is a glass or transparent plastic substrate, wherein the coating layer has a symmetrical structure in which the low-emissivity protective metal layer and the dielectric layer are sequentially stacked on both surfaces of the low-emissivity layer.