公开(公告)号：US20220024102A1

公开(公告)日：2022-01-27

申请号：US17297049

申请日：2019-11-13

申请人： Röhm GmbH

发明人： Claude Guénanten ,  Ghirmay Seyoum ,  Michael Enders ,  Herbert Groothues ,  Kim Struwe

IPC分类号： B29C48/18 ,  B29C48/00 ,  B29C48/07 ,  B29D7/01 ,  C08L33/12 ,  C08K3/40 ,  C08K5/3475 ,  C08K5/3492 ,  C08K3/22

摘要： A transparent weathering resistant foil for protection of various substrates against solar radiation contains at least two layers A and B, wherein the spectral transmittance of the layer A at any wavelength λA is not more than 10%; wherein 270 nm≤λA≤360 nm; and the spectral transmittance of the layer B at any wavelength λB is not more than 10%; wherein 270 nm≤λB≤370 nm. The foil can also contain at least two layers A and B; wherein the spectral transmittance of the layer A at any wavelength λA is not more than 20%; wherein 270 nm≤λA≤310 nm; and the spectral transmittance of the layer B at any wavelength λB is not more than 10%; wherein 270 nm≤λB≤370 nm.