Patents Represented by Attorney D. M. Weisberg

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  • Membrane for separating aromatic and aliphatic compounds
    Patent number: 7708151
    Abstract: This invention relates to a polymeric membrane composition utilizing the non-hazardous compound 4-aminophenyl disulfide (“APD”), a method of making the polymeric membrane, and a process for separating components of a feedstream utilizing the polymeric membrane. More particularly, but not by way of limitation, this invention relates to utilizing the polymeric membrane composition in a process for the separation of aromatics from a hydrocarbon feedstream containing aromatics and aliphatic compounds.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: May 4, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Dennis G. Peiffer, Randall D. Partridge, Walter Weissman, David C. Dalrymple, Craig Y. Sabottke