Composite article having hydrophilic properties and method...

Details Composite article having hydrophilic properties and method... Composite article having hydrophilic properties and method...

2005-09-30

2010-02-23

Fortuna, Ana M (Department: 1797)

Liquid purification or separation

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Supported, shaped or superimposed formed mediums

C210S500270, C210S500360, C210S500280, C427S244000

Reexamination Certificate

active

07665615

ABSTRACT:
A composite article includes a base material and a porous membrane laminated with the base material. The porous membrane has hydrophobic properties and includes at least one of expanded polytetrafluoroethylene, woven polytetrafluoroethylene, and non woven polytetrafluoroethylene. A coating layer is formed on at least a portion of the porous membrane. The coating layer has hydrophilic properties and includes at least one of an organofunctional siloxane and a polyether urethane polymer.

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