Ekiner Okan M. (Wilmington DE) Hayes Richard A. (Parkersburg WV) Manos Phillip (Wilmington DE)
출원인 / 주소
E. I. du Pont de Nemours and Company (Wilmington DE 02)
인용정보
피인용 횟수 :
108인용 특허 :
0
초록▼
A process for preparing multicomponent gas separation membranes is disclosed. The process involves casting two or more solutions of polymer, and partially removing solvent from the side of the cast polymer that is to form the gas separation layer of the membrane. The membrane is then quenched to fre
A process for preparing multicomponent gas separation membranes is disclosed. The process involves casting two or more solutions of polymer, and partially removing solvent from the side of the cast polymer that is to form the gas separation layer of the membrane. The membrane is then quenched to freeze its structure and then the remainder of the solvent removed to form the gas separation membrane.
대표청구항▼
A multicomponent membrane comprising, a porous polymeric substrate and a polyamide separating layer for separating gases, wherein said polyamide has the formula [Figure] where R is one of either [Figure] [Figure] [Figure] [Figure] [Figure] [Figure] or mixtures thereof where Z′, Z″, and Z″′are indepe
A multicomponent membrane comprising, a porous polymeric substrate and a polyamide separating layer for separating gases, wherein said polyamide has the formula [Figure] where R is one of either [Figure] [Figure] [Figure] [Figure] [Figure] [Figure] or mixtures thereof where Z′, Z″, and Z″′are independently a carbon-carbon single bond, [Figure] [Figure] [Figure] or mixtures thereof, Ar is [Figure] where Z is a carbon-carbon single bond, [Figure] [Figure] or mixtures thereof, n is an integer such that the polymer is of film-forming molecular weight, －X, －X1, －X2 and －X3 are independently hydrogen, alkyl groups of 1 to 6 carbon atoms, alkoxy groups of 1 to 5 carbon atoms, phenyl or phenoxy groups, and －Y, －Y1, －Y2, －Y3, －Y4, －Y5, －Y6, －Y7, －Y8, －Y9, －Y10, －Y11, －Y12, －Y13, －Y14, －Y15 independently are X, X1, X2, X3, halogen, or alkyl groups of 1 to 6 carbon atoms.
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