Japan Gore-tex Inc.

Mari Sakai

Hiroyoshi Fujimoto

Kazuya Morimoto

Katsuhiko Morishita

A composite membrane is provided in which a functional separation membrane is adhered to a hydrophilic porous fluoropolymer support membrane whose pores are coated with a fluorine-containing copolymer that provides durable hydrophilic properties to the membrane.

Composite membrane that includes a separation membrane

The present invention provides porous hydrophilic fluoropolymer membranes whose pores are coated with a hydrophilic fluorine-containing copolymer that provides durable hydrophilic properties to the membrane.

Hydrophilic porous fluoropolymer membrane

A wound dressing is provided comprising a layer of chitin affixed to a layer of porous, expanded polytetrafluoroethylene (PTFE). The chitin may be laminated to the PTFE or it may penetrate into and be impregnated in the porous PTFE layer. The composite preferably has a pressure sensitive adhesive applied in a dot pattern on its surface to enable application and securing of the dressing over a wound.

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Okayama, Japan

Mari Sakai