Back to results
US 7,300,984 B2Granted
Process for preparing graft copolymers and membranes formed therefrom
AssigneeBallard Power Systems Inc.
InventorSean M MacKinnon
Life of this patent
Estimating the term…
Abstract
A process for preparing a graft copolymers is provided comprising exposing a polymeric base material to a dose of ionizing radiation, and then contacting the irradiated base material with a microemulsion comprising at least one fluorostyrenic monomer, water and water-miscible solvent. The graft copolymer may be formed into a membrane, including ion exchange membranes.
Claims20
A process for preparing a graft copolymer, the process comprising:
- exposing a polymeric base material to a dose of ionizing radiation;
- and
- contacting the irradiated base material with a microemulsion, the microemulsion comprising
- at least one fluorostyrenic monomer,
- water, and
- a solvent that is at least partially miscible in water.
3 more elements
Dependencies are inferred from the claim text.