EP0159783A2
Expired / Lapsed
EP
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Process for separating water vapour from a gaseous mixture containing water vapour and methane
Assignee: Mitsubishi Chemical Corp
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Filing: 1985-03-01
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Granted: —
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Expires: 2005-03-01
Abstract
Abstract A process for separating water vapour from a gaseous mixture containing water vapor and methane comprises contacting a membrane consisting essentially of a urethane-amino acid copolymer with the gaseous mixture.
Inventors
- 👤 Munehisa Okada
- 👤 Isao Konno
- 👤 Shinzi Uchida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 02:43
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; B; B01; B01D; B01D71/00; B01D71/06; B01D71/54
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
32 words
A process for separating water vapour from a gaseous mixture containing water vapour and methane, which process comprises contacting a membrane consisting essentially of a urethane-amino acid copolymer with the gaseous mixture.
Claim 2
Dependent Claim
32 words
A process for separating water vapour from a gaseous mixture containing water vapour and methane, which process comprises contacting a membrane consisting essentially of a urethane-amino acid copolymer with the gaseous mixture.
Claim 3
Dependent Claim
31 words
A process according to claim 1, wherein said copolymer has been obtained by copolymerizing, in the presence of an amine, an<-amino acid N-carboxyanhydride with a urethane-prepolymer having a free isocyanate group.
References Cited (Backward Citations)
No citation records indexed.
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