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Preparation of membranes using solvent-less vapor deposition followed by in-situ polymerization

United States Patent

7,754,281
July 13, 2010
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A system of fabricating a composite membrane from a membrane substrate using solvent-less vapor deposition followed by in-situ polymerization. A first monomer and a second monomer are directed into a mixing chamber in a deposition chamber. The first monomer and the second monomer are mixed in the mixing chamber providing a mixed first monomer and second monomer. The mixed first monomer and second monomer are solvent-less vapor deposited onto the membrane substrate in the deposition chamber. The membrane substrate and the mixed first monomer and second monomer are heated to produce in-situ polymerization and provide the composite membrane.
O'Brien; Kevin C. (San Ramon, CA), Letts; Stephan A. (San Ramon, CA), Spadaccini; Christopher M. (Oakland, CA), Morse; Jeffrey C. (Pleasant Hill, CA), Buckley; Steven R. (Modesto, CA), Fischer; Larry E. (Los Gatos, CA), Wilson; Keith B. (San Ramon, CA)
Lawrence Livermore National Security, LLC (Livermore, CA)
11/ 486,669
20070020391
July 14, 2006
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.