Selectively permeable zeolite adsorbents and sealants made there

Details Selectively permeable zeolite adsorbents and sealants made there Selectively permeable zeolite adsorbents and sealants made there

1988-01-20

1989-05-30

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

Including organic component

502417, 52172, B01J 2018, B01J 2020

Patent

active

048351300

ABSTRACT:
The invention relates to an improved adsorbent, essentially impermeable to oxygen and nitrogen but permeable to water vapor, and to sealants incorporating said adsorbent. The adsorbent comprises outgassed zeolite having pores with apertures large enough to permit entry of gases such as oxygen and nitrogen into the pore spaces and having on its surface, covering the pore apertures, a fluid which is essentially impermeable to nitrogen and oxygen molecules and yet permeable to water vapor. The zeolite adsorbent, and sealants prepared from the zeolite, are particularly useful in the fabrication of thermal insulating glazed windows having a sealed air pocket.

REFERENCES:
patent: 3563912 (1971-02-01), Young
patent: 3813347 (1974-05-01), Hayes
patent: 4013566 (1977-03-01), Taylor
patent: 4144196 (1979-03-01), Schoofs
patent: 4386012 (1983-05-01), Kulprathipanja et al.
patent: 4692423 (1987-09-01), Caesar

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