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US 2006/0223896 A1Published application
Method for the recovery of a vinyl alcohol polymer in solution
AssigneeInergy Automotive Systems Research (Societe Anonyme)
InventorsJean-Christophe Lepers, Hervé Gazio
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Abstract
Process for recovering a vinyl alcohol polymer in solution in a solvent, according to which: (a) the polymer solution is converted into a gel (b) water is added to the gel obtained (c) the gel is broken mechanically to form polymer particles suspended in a liquid comprising the solvent and water. Particles obtained according to this process and multilayer fuel tank comprising in the barrier layer the EVOH obtained via this process.
Claims13
Process for recovering at least one vinyl alcohol polymer in solution in a solvent, according to which:
- (a) the solution is converted into a gel
- (b) water is added to the gel obtained
- (c) the gel is broken mechanically to form polymer particles in suspension in a liquid comprising the solvent and water.
Dependencies are inferred from the claim text.