초록 ▼

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 ni

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.

대표청구항 ▼

An adsorbent comprising (i) a zeolite having a surface and having a plurality of pores extending through said surface into said zeolite, said pores having apertures large enough to permit passage of oxygen and nitrogen molecules through said pore aperatures, and (ii) a fluid disposed on said surface

An adsorbent comprising (i) a zeolite having a surface and having a plurality of pores extending through said surface into said zeolite, said pores having apertures large enough to permit passage of oxygen and nitrogen molecules through said pore aperatures, and (ii) a fluid disposed on said surface of said zeolite and extending over and covering said pore apertures, said fluid being essentially impermeable to nitrogen and oxygen molecules and relatively permeable to water vapor; wherein said fluid is selected from the group consisting of paraffinic oil, naphthenic oil, and aromatic oil.