SUBSTRATE EQUIPPED WITH A MULTILAYER COMPRISING PARTIAL METAL FILMS, GLAZING UNIT, USE AND PROCESS

• Main Authors: LORENZZI, JEAN-CARLOS, CAILLET, XAVIER, GEORGES, BENOIT
• Format: Patent
• Language: English
• Published: 19.10.2020

The invention relates to a substrate (30) coated on one face (31) with a thinfilm multilayer (34, 35, 36) comprising at least one metal functional film (140, 180, 220) based on silver or made of silver having a thickness e comprised between 7 nm and 20 nm inclusive of these values, and two antireflection coatings (120, 160, 200, 240), said antireflection coatings each comprising at least one antireflection film (124, 164, 204, 244), said functional film (140) being placed between the two antireflection coatings (120, 160), characterized in that said multilayer comprises two discontinuous metal films (123, 167) each having a thickness e' comprised between 0.5 nm and 5 nm inclusive of these values, a lower discontinuous metal film (123) being located between, on the one hand, said face (31) and, on the other hand, the only or first metal functional film (140) as counted starting from said face (31) and an upper discontinuous metal film (167) being located above the only or last metal functional film (140, 180, 220) as counted starting from said face (31 ).