Multi-component, highly porous, high strength PTFE article and method for manufacturing same
AssigneeW. L. Gore & Associates, Inc.
InventorDaniel E. Hubis
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Abstract
A method for producing a multi-component, porous PTFE article. Components of PTFE containing a liquid lubricant are placed in intimate contact, dried and then stretched in one or more directions. The PTFE components may optionally contain a filler. The resultant product has a virtually uninterrupted structure at the join and possesses very high bond strengths.
Claims22
A multi-layer article comprising at least two layers of porous polytetrafluoroethylene superimposed on top of one another such that said multi-layer article is thicker than any one layer there being substantially no change in porosity between said layers and the bond strength in the Z direction being equal to the Z direction strength of the individual layers.
Dependencies are inferred from the claim text.