OXYGEN ENRICHMENT MEMBRANE AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Issued Date -
Aug 4, 2016
app pub date -
Feb 1, 2016
filing date -
Feb 1, 2016
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Abstract
Provided is an oxygen enrichment membrane that has both good oxygen separation performance and good membrane physical properties (mechanical strength, ease of membrane formation, etc.), and moreover, can be used to industrially obtain a high concentration of oxygen, and a method for producing the oxygen enrichment membrane. The oxygen enrichment membrane includes, as a main component, a hydrocarbon group-containing polysiloxane network structure material which is a reaction product of a tetraalkoxysilane and a hydrocarbon group-containing dialkoxysilane. The tetraalkoxysilane is a tetramethoxysilane or a tetraethoxysilane (referred to as “A”), and the hydrocarbon group-containing dialkoxysilane is dimethyldimethoxysilane or diethyldiethoxysilane (referred to as “B”). The mixing ratio (A/B) of the A and the B as expressed in a molar ratio is 1/9-9/1.
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