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US 5,179,153 AGranted
Wear resistant polyimide composition
AssigneeE. I. Du Pont de Nemours and Company
InventorDaniel E. George
Life of this patent
Estimating the term…
Abstract
Polyimide compositions containing both graphite and fluoropolymer exhibit superior wear performance against aluminum.
Claims8
A polyimide composition having improved resistance to wear against aluminum and aluminum alloys and consisting essentially of about 40-75 parts of at least one polyimide, about 60-25 parts by weight of graphite substantially free from reactive impurities and about 2-25 parts by weight of at least one fluoropolymer in which at least about 50% of the polymeric units are derived from tetrafluoroethylene.
Dependencies are inferred from the claim text.