GB1241858A — Sorption of nitrogen dioxide by polyamides
Assigned to Imperial Chemical Industries Ltd · Expires 1971-08-04 · 55y expired
What this patent protects
1,241,858. Separating NO 2 from gas mixtures; gas filters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Dec., 1969 [30 Dec., 1968], No. 61660/68. Headings B1L and BIT. Nitrogen dioxide is removed from gas streams, e.g. of air or nitrous oxide, by sorption on a polyamide. The polyamide m…
USPTO Abstract
1,241,858. Separating NO 2 from gas mixtures; gas filters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Dec., 1969 [30 Dec., 1968], No. 61660/68. Headings B1L and BIT. Nitrogen dioxide is removed from gas streams, e.g. of air or nitrous oxide, by sorption on a polyamide. The polyamide may be polyhexamethylene suberamide or sebacamide, or polycaprolactam, but is preferably polyhexamethylene adipamide; copolymers may also be employed. The polyamide may be used in the form of powder or a sintered porous structure, but most suitably in fibrous form, especially by using two-component polyamide fibres, one component of which possesses potentially adhesive properties so that a bundle of such fibres may be compacted to form a coherent and stable filter body.
Drugs covered by this patent
- Inomax (NITRIC OXIDE) · Vero Biotech Inc
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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