Patent ID: 11899227
Assignee: NINGBO RADI-COOL ADVANCED ENERGY TECHNOLOGIES CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC G  B  C | IPC C  G

Claim 14:
15. The solar reflecting film of claim 1, wherein a thickness relationship among the first barrier layer, the second barrier layer and the third barrier layer meets either one of the following two ratios,
a ratio of δ1 and δ2 is in a range of 3:1 to 1:3, or
a ratio of δ1, δ2 and δ3 is in a range of 3:1:1 to 1:3:3
wherein a thickness of the first barrier layer is defined as δ1, a thickness of the second barrier layer is defined as δ2, and a thickness of the third barrier layer is defined as δ3.