Method of making fluoropolymers
AssigneeUniversity of North Carolina - Chapel Hill
InventorJoseph M. DeSimone
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Abstract
A process for making a fluoropolymer is disclosed. The process comprises solubilizing a fluoromonomer in solvent comprising a carbon dioxide fluid, and then polymerizing the fluoromonomer to produce a the fluoropolymer. A preferred solvent for carrying out the process is supercritical carbon dioxide; preferred fluoromonomers for carrying out the process are fluoroacrylate monomers such as 1,1-dihydroperfluorooctyl acrylate. The polymerization step is preferably carried out in the presence of an initiator such as azobisisobutyronitrile.
Claims8
A method of applying a polymer to a substrate, said method comprising:
- providing a homogeneous solution comprising carbon dioxide and a fluoropolymer;
- and
- spraying said homogeneous solution onto a substrate such that said carbon dioxide separates from said fluoropolymer and wherein said polymer coats said substrate.
Dependencies are inferred from the claim text.