Patent ID: 11867434
Assignee: NINGBO RUILING ADVANCED ENERGY MATERIALS INSTITUTE CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC F  B  C | IPC B  F

Claim 0:
1. A radiative cooling film, comprising a carrier layer, a reflective layer and an emissive layer stacked together,
wherein the emissive layer is defined as a light-incident side of the radiative cooling film, the emissive layer comprises a polymer comprising a C—F bond,
the carrier layer comprises a polymer comprising at least one of a C—C bond and a C—O bond,
after being disposed at 120 degrees centigrade for 30 minutes, a transverse direction heat-shrinkage rate of the carrier layer is less than or equal to 2%, and a machine direction heat-shrinkage rate of the carrier layer is less than or equal to 3%, and
a thickness of the radiative cooling film is in a range of 50 μm to 170 μm, and a ratio of a thickness of the emissive layer to the thickness of the radiative cooling film is in a range of 20:100 to 90:100.