IP Library › Granted Patent US 8,048,111
Granted Patent B2
US 8,048,111 · App. 11/865,245 · Granted Nov 1, 2011

Expanded PTFE articles and method of making same

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Quick Facts
Patent No.
US 8,048,111
App. No.
11/865,245
Granted
Nov 1, 2011
Kind
B2
Abstract

Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.

Claims (7)

1. An article comprising:

a first PTFE material having a microstructure characterized by nodes interconnected by fibrils, and

raised islands of a second PTFE material which are connected to and extending from the underlying first PTFE material,

wherein said raised islands of a second PTFE material have a lower molecular weight than the molecular weight of the underlying first PTFE material, and

wherein said article is in the form of a suture.

2. The article of claim 1 , wherein said suture has a diameter of about 0.025 mm.

3. The article of claim 1 , wherein said suture has a diameter of about 0.015 mm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 14, 2012
From: GORE ENTERPRISE HOLDINGS, INC.
To: W. L. GORE & ASSOCIATES, INC.
Reel/Frame 027906/0508 →