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公开(公告)号:US20220403599A1
公开(公告)日:2022-12-22
申请号:US17762139
申请日:2020-09-22
发明人: Xin Wang , Jianhui Wu , Aaron Mann
IPC分类号: D21H19/12 , B32B5/02 , B32B5/08 , B32B13/14 , D04H1/4382 , D04H1/587 , D04H1/4218 , D04H1/4209 , D04H1/732 , D21H13/40 , C04B28/14
摘要: An uncoated nonwoven fibrous mat having a reduced air porosity is disclosed comprising a first plurality of fibers having a length between about 10 mm and 20 mm and an average diameter between about 9 μm and 15 μm; a second plurality of fibers having a length between about 3 mm and 8 mm and an average diameter between about 5 μm and 8 μm; and a binder composition. The uncoated nonwoven fibrous mat has an air porosity less than about 550 CFM.