1
Steigelmann Edward F, Ries Jr Herman E, Hughes Robert D: Membrane method and product. Standard Oil Company, Morton Bernard Brown Roberts & Sutherland, July 1, 1975: US3892665 (67 worldwide citation)

There is disclosed a method of forming membranes on the order of 10-200A (0.001 to 0.01.mu.) thick, particularly for use in reverse osmosis processes where solvents are caused to flow from a more concentrated solution to a more dilute solution through the membrane. The membrane is formed from a plur ...


2
Steigelmann Edward F, Hughes Robert D: Process for separation of unsaturated hydrocarbons. Standard Oil Company, September 11, 1973: US3758603 (40 worldwide citation)

There is described the separation of aliphatically unsaturated hydrocarbons from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is in contact with a film membrane, and the barrier contains complex-forming metal ions in aqueous solution. ...


3
Hughes Robert D, Steigelmann Edward F: Process. Standard Oil Company, September 11, 1973: US3758605 (28 worldwide citation)

There is described the separation of aliphatically-unsaturated hydrocarbons from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is within a hydrophilic film membrane, and the barrier contains complex-forming metal ions in aqueous solutio ...


4
Hughes Robert D, Steigelmann Edward F: Process of separating complexable materials employing semipermeable polymer film. Standard Oil Company, Morton Bernard Brown Roberts and Sutherland, February 4, 1975: US3864418 (20 worldwide citation)

There is described the preparation of hydrophilic, semi-permeable film membranes having an increase in pores and containing complex-forming metals. The films can be formed from solutions having film-forming material and pore-forming material dissolved in a solvent. The films can be useful for separa ...


5
Steigelmann Edward F, Hughes Robert D: Process. Standard Oil Company, Morton Bernard Brown, October 29, 1974: US3844735 (18 worldwide citation)

There is described the separation of aliphatically unsaturated hydrocarbons from gaseous mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is present essentially in a solid matrix that is a film membrane or is in contact with a film membran ...


6
Steigelmann Edward F, Hughes Robert D: Process for separating a material from a mixture of mixture which comprises employing a solid water-insoluble, hydrophilic, semi permeable membrane. Standard Oil Company, Morton Bernard Brown Roberts & Sutherland, February 11, 1975: US3865890 (15 worldwide citation)

Novel gas separation film membranes are made by grafting alpha-olefinic, polymerizable monomers having hydrophilic functional groups and having, e.g., about from 2 to about 12 carbon atoms, to nylon, and forming a film from the resulting copolymers. A complex-forming metal component which is active ...


7
Hughes Robert D, Steigelmann Edward F: Process for separating carbon monoxide. Standard Oil Company, Morton Bernard Brown Roberts & Sutherland, July 16, 1974: US3823529 (12 worldwide citation)

There is described the separation of carbon monoxide from gaseous mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is in contact with a semi-permeable film membrane, and the barrier contains complex-forming metal ions in aqueous solution. ...


8
Steigelmann Edward F: Process for separating gas by diffusion. Standard Oil Company, May 28, 1974: US3812651 (11 worldwide citation)

There is described the separation of aliphatically-unsaturated hydrocarbons of two to four carbon atoms from gaseous mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is in contact with a film membrane, and the barrier contains complex-form ...


9
Hughes Robert D, Steigelmann Edward F: Process. Standard Oil Company, April 2, 1974: US3800506 (11 worldwide citation)

There is described the separation of aliphatically-unsaturated hydrocarbons from gaseous mixtures by the combined use of flooded-cell, liquid barrier permeation and metal complexing techniques. The liquid barrier is disposed as a continuous, distinct or separate liquid phase in contact with a film m ...


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