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US 4,379,858 AGranted
Foamed plastics
OwnerHirosuke Suzukiinventor
Life of this patent
Estimating the term…
Abstract
A melt-molded foamed plastic composition comprised of a tetrafluoroethylene-perfluoroalkyl vinyl ether resin matrix in which is admixed stretched porous fragments of polytetrafluoroethylene.
Claims1
A melt molded foamed plastic composition comprising a
- tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin matrix and stretched porous resin fragments selected from the group consisting of polytetrafluoroethylene, polyethylene and polypropylene wherein said porous fragments have a porosity of 40 to 90%.
Dependencies are inferred from the claim text.