Controlled-puncture films

Details Controlled-puncture films Controlled-puncture films

2005-03-22

2005-03-22

Tarazano, D. Lawrence (Department: 1773)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C428S515000, C428S516000, C428S523000

Reexamination Certificate

active

06869666

ABSTRACT:
The present invention discloses methods of controlling the puncturability, and optionally the sealability (the ability of a film to conform around a puncturing object) and resealability (the ability of a film to close a hole made by a puncturing object), of polymeric films. Systems comprising a film and puncturing object are also disclosed. Puncturability is controlled by achieving targeted levels of the friction between the film and a puncturing object, the film's flexural rigidity, the film's recovering stress, and the film's elongation at break.

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