1
Lloyd S White: Membranes for absorbent packets. Allied Signal, Harold N Wells, Mary Jo Boldingh, Gerhard H Fuchs, April 28, 1992: US05108383 (63 worldwide citation)

An absorbent article comprising a cellulosic membrane about 5 to 50 .mu.m thick prepared by casting a film from solution of a cellulose derivative in a suitable solution and these formed into a packet which encapsulates an osmotic promoter, particularly sodium chloride, sugar or other suitable compo ...


2
Arthur A Chin, Bryan M Knickerbocker, Jeffrey C Trewella, Terry R Waldron, Lloyd S White: Recovery of aromatic hydrocarbons using lubricating oil conditioned membranes. Exxon Mobil Corporation, Malcolm D Keen, February 13, 2001: US06187987 (34 worldwide citation)

Permselective separation of aromatic hydrocarbons from non-aromatic hydrocarbons in a feed stream is accomplished using improved asymmetric membranes. The preferred membranes are fashioned from a polyimide and conditioned with a lubricating oil. Feed streams containing a mixture of aromatic and non- ...


3
Lloyd S White, I Fan Wang, Bhupender S Minhas: Polyimide membrane for separation of solvents from lube oil. W R Grace & Co Conn, Valerie E Looper, November 23, 1993: US05264166 (13 worldwide citation)

An improved asymmetric membrane fashioned from a polyimide for the liquid separation of solvents from lube oil. The membrane is based on a fully imidized polymer based on 5(6)-amino-1-(4'-aminophenyl)-1,3-trimethylindane polymer and benzophenone tetracarboxylic dianhydride.


4
Lloyd S White, I Fan Wang, Bhupender S Minhas: Polymide membrane for separation of solvents from lube oil. Valerie E Looper, July 4, 1995: US05429748 (5 worldwide citation)

An improved asymmetric membrane fashioned from a polyimide for the liquid separation of solvents from lube oil. The membrane is based on a fully imidized polymer based on 5(6)-amino-1-(4'-aminophenyl)-1,3,3-trimethylindane polymer and benzophenone tetracarboxylic dianhydride.


5
Robert H Sedath, Donald R Taylor, Lloyd S White: Reduction of membrane fouling by surface fluorination. Allied Signal, Mary Jo Boldingh, Harold N Wells, Gerard P Rooney, September 29, 1992: US05151183 (5 worldwide citation)

The instant invention is a membrane useful for separating organic matter such as proteins from aqueous solutions which resists fouling and maintains a high flux during separation. The membrane is prepared by either drying a polysulfone composite membrane, or first treating a polysulfone composite me ...


6
Ronald M Gould, Harold A Kloczewski, Krishna S Menon, Thomas E Sulpizio, Lloyd S White: Lubricating oil dewaxing with membrane separation. Mobil Oil Corporation, Malcolm D Keen, Thomas W Steinberg, July 29, 1997: US05651877 (3 worldwide citation)

A semicontinuous process for solvent dewaxing a waxy petroleum oil feed stream including the steps of: diluting of the waxy oil feed stream with solvent; feeding cold oil/solvent/wax mixture to a filter to remove the wax and obtain an oil/solvent filtrate stream; contacting the oil/solvent filtrate ...


7
Bhupender S Minhas, Dennis G Peiffer, Michael Mayers, Lloyd S White, William A Feehley: Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes. Exxonmobil Research and Engineering Company, Bruce M Bordelon, David M Weisberg, August 16, 2011: US07997426 (2 worldwide citation)

A multi-layer membrane structure including a crosslinked polymeric membrane, such as a crosslinked polyvinyl sulfate membrane or a crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, is provided. The membrane structure is suitable for use in an acid environment, and is suitable f ...


8
Lloyd S White: Osmotic absorbents. Allied Signal, WU HUIZHONG, May 2, 1990: CN89107444

Osmotic absorbents which possess the ability to absorb liquids to a high degree comprise encapsulated semipermeable polymeric membrane shells containing therein a high osmolality promoter, the ratio of polymer to promoter being in a range of from about 2:1 to about 1:10. The absorbents may be charac ...


9
Bhupender S Minhas, Dennis G Peiffer, Michael Mayers, Lloyd S White, William A Feehley: Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes. ExxonMobil Research & Engineering Company, November 29, 2007: US20070272613-A1

A multi-layer membrane structure including a crosslinked polymeric membrane, such as a crosslinked polyvinyl sulfate membrane or a crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, is provided. The membrane structure is suitable for use in an acid environment, and is suitable f ...


10
Lloyd S White, Richard F Wormsbecher, Wu Cheng Cheng: Process for enhanced propylene yield from cracked hydrocarbon feedstocks and reduced benzene in resulting naphtha fractions. Patent Department, July 7, 2011: US20110163002-A1

A process in which a catalytic cracking unit is operated to crack a hydrocarbon feedstock in a manner to enhance light olefin yields. The accompanying benzene-containing naphtha product stream is further processed through a benzene selective membrane to provide a low content benzene stream. Refiners ...