公开(公告)号：US20210151617A1

公开(公告)日：2021-05-20

申请号：US17252931

申请日：2019-07-08

Applicant: DSM IP ASSETS B.V.

Inventor： Yansen LAUW ,  Peter Leonardus Elisabeth Maria PASMANS ,  Mark Martinus Maria JANSSEN ,  Kurt VAN DURME

IPC: H01L31/049 ,  C08J5/18 ,  C08J5/12 ,  C08K3/22 ,  C08K3/04 ,  G02B5/08 ,  H01L31/048 ,  H01L31/054 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32

Abstract: The present invention relates to a multi-layer material sheet comprising an NIR-reflective, translucent polymeric layer having a reflectance of more than 20% of all light with a wavelength from 750 nm to 1000 nm and a transmission of more than 50% of all light with a wavelength from 380 nm to 750 nm and an NIR-reflective, colored polymeric layer having a reflectance of more than 25% of all light with a wavelength from 1000 nm to 2100 nm. The present invention also relates to a backsheet suitable for use in a photovoltaic module, said backsheet comprising said multi-layer material sheet; and to a photovoltaic module comprising said backsheet.