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公开(公告)号:US12104072B2
公开(公告)日:2024-10-01
申请号:US16646521
申请日:2018-10-08
IPC分类号: C09D131/04 , B05D1/02 , B05D3/04 , B05D3/14 , B05D5/06 , C08K3/04 , C09D7/20 , C09D7/61 , F24S70/20 , G02B1/111
CPC分类号: C09D131/04 , B05D1/02 , B05D3/0486 , B05D3/148 , B05D5/06 , C08K3/04 , C09D7/20 , C09D7/61 , F24S70/20 , G02B1/111
摘要: A method of coating a substrate includes the steps of: (i) providing a suspension of dye and a binder in a solvent, wherein the ratio of dye to binder is greater than 40 wt % and the dye is uniformly dispersed in the solvent; (ii) spray-coating the suspension onto the substrate with the majority of the solvent evaporating during the spray coating step to result in a coating of dye and binder on the substrate having a density of up to 0.75 gcm-3; and (iii) continuing step (ii) until the coating thickness is at least 30 micrometres; wherein the dye does not include any carbon nanotubes.