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US 7,629,420 B2Granted
Tri-blend resin of PBI, PAEK, and PEI
AssigneePBI Performance Products, Inc.
InventorsBobby G. Dawkins, Michael Gruender, Gregory S. Copeland, Jerry Zucker
Life of this patent
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Abstract
A polymer blend comprises PBI, PAEK, and PEI. A method of making the foregoing blend comprises the steps of intimately blending PBI, PAEK, and PEI by dissolving PBI, PAEK, and PEI in a strong acid or melt blending PBI, PAEK, and PEI.
Claims5
A method for making a tri-blend of PBI, PAEK, and PEI comprising the steps of:
- intimately blending PBI, PAEK, and PEE by dissolving PBI, PAEK, and PEI in a strong acid;
- and
- harvesting the tri-blend of PBI, PAEK, and PEI.
Dependencies are inferred from the claim text.