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US 7,803,891 B2Granted
Blend of ionic (co)polymer resins and matrix (co)polymers
AssigneeArkema Inc.
InventorsJames T. Goldbach, Robert J. Umpleby
Life of this patent
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Abstract
The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.
Claims19
A styrenic polyelectrolyte copolymer composition having the following formula:
- wherein:
- W=a bond, O, NH, S, SO, or SO2
- Y=a bond, alkyl, aromatic, or alkylene-ether linkage of C1 to C12
- Z=a bond, alkyl, aromatic, or alkylene-ether linkage of C1 to C12
- n=greater than 50%
- m=less than 50%
- A=a sulfonate, phosphonate or carboxylate
- B=a group capable of cross-linking, selected from the group consisting of hydroxyl;
- primary, secondary, and tertiary amines;
- N-methylol acrylamide;
- isobutoxy methacrylamide;
- N-methylenebisacrylamide;
- allyl groups;
- styryl groups;
- glycidyl methacrylate;
- free and blocked isocyanates, melamines, epoxies, carboxylates, α,ω-dihaloalkanes, α,ω-dialdehydes, carboxylic acids, alkoxy silanes, silicones, aziridines, and carbodiimides.
13 more elements
Dependencies are inferred from the claim text.