Back to results
US 12,472,482 B2Granted
Method of producing carbon molecular sieve membranes
AssigneeDow Global Technologies LLC
InventorsJunqiang Liu, Dean M. Millar
Life of this patent
Estimating the term…
Abstract
A method of forming a carbon molecular sieve membrane includes dissolving a halogenated precursor polymer in a solvent, thereby forming a dissolved halogenated precursor polymer. Homogeneously dehydrohalogenating the dissolved halogenated precursor polymer with an organic amine base to form a partially dehydrohalogenated polymer. Forming a thin film from the partially dehydrohalogenated polymer. Pyrolyzing the thin film to form the carbon molecular sieve membrane.
Claims14
A method of forming a carbon molecular sieve membrane comprising:
- dissolving a halogenated precursor polymer in a solvent, thereby forming a dissolved halogenated precursor polymer;
- homogeneously dehydrohalogenating the dissolved halogenated precursor polymer with an organic amine base to form a partially dehydrohalogenated polymer;
- forming a thin film from the partially dehydrohalogenated polymer;
- and
- pyrolyzing the thin film to form the carbon molecular sieve membrane.
2 more elements
Dependencies are inferred from the claim text.