Patent ID: 8211499
Filing Date: 2012-07-03
Classification: B01D,B05D,C08G

Abstract:
1. The method of fabricating a composite membrane from a membrane substrate using solvent-less vapor deposition followed by in-situ polymerization, comprising the steps of: providing a vacuum deposition chamber, providing a separate mixing chamber within said vacuum deposition chamber, injecting a first monomer into said separate mixing chamber within said vacuum deposition chamber, and injecting a second monomer into said separate mixing chamber within said vacuum deposition chamber, mixing said first monomer and said second monomer within said separate mixing chamber providing a mixed first monomer and second monomer in said vacuum deposition chamber, wherein said step of solvent-less vapor depositing said mixed first monomer and second monomer onto the membrane substrate in said separate mixing chamber within said vacuum deposition chamber deposits said mixed first monomer and second monomer onto a thin dense perfluorodioxole substrate, solvent-less vapor depositing said mixed first monomer and second monomer onto the membrane substrate in said vacuum deposition chamber, and heating the membrane substrate and said mixed first monomer and second monomer deposited on the membrane substrate.