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

United States Patent

8,101,023
January 24, 2012
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)
12/ 792,013
June 2, 2010
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.