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1.发明申请公开(公告)号：US20190202706A1
公开(公告)日：2019-07-04
申请号：US16236543
申请日：2018-12-30
发明人： Kun Tang , Hezhi Wang , Hongshu Feng , Guochuang Huang
CPC分类号： C01B39/48 , C01B39/00 , C01P2004/61 , C01P2004/64 , H04R1/025 , H04R1/288
摘要： The present disclosure relates to a molecular sieve, preparation thereof and acoustic absorption material and speaker containing the same. The molecular sieve having an MFI-structure, comprising a framework and an off-framework cation, wherein the framework comprises SiO2 and a metal oxide MxOy with M comprising boron, gallium or aluminium; the off-framework cation is at least one of hydrogen ion, alkali metal ion and alkaline earth metal ion. The molecular herein can effectively prevent the failure of the molecular sieve and improve the performance stability of the speaker.
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公开(公告)号：US11014820B2
公开(公告)日：2021-05-25
申请号：US16236543
申请日：2018-12-30
发明人： Kun Tang , Hezhi Wang , Hongshu Feng , Guochuang Huang
IPC分类号： B01J20/18 , C01B39/48 , C01B39/00 , H04R1/28 , H04R1/02 , B01J29/86 , B01J29/87 , B01J29/40 , B01J29/00 , B01J20/28 , C01B39/38 , C01B39/40 , C01B39/36
摘要： The present disclosure relates to a molecular sieve, preparation thereof and acoustic absorption material and speaker containing the same. The molecular sieve having an MFI-structure, comprising a framework and an off-framework cation, wherein the framework comprises SiO2 and a metal oxide MxOy with M comprising boron, gallium or aluminium; the off-framework cation is at least one of hydrogen ion, alkali metal ion and alkaline earth metal ion. The molecular herein can effectively prevent the failure of the molecular sieve and improve the performance stability of the speaker.
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