Pores of controlled geometry on a thermoplastic polymer

Details Pores of controlled geometry on a thermoplastic polymer Pores of controlled geometry on a thermoplastic polymer

1993-01-25

1994-07-26

Ryan, Patrick J.

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

428141, 428156, 4283044, 4283105, 4283142, 4283155, 428412, 4284231, 428480, 521155, 521182, 523114, 525937, B32B 900

Patent

active

053326261

ABSTRACT:
A process is provided for manufacturing nonwoven, nonbiodegradable tissue ingrowth-inducing, tissue-interfacing substrates with predetermined oriented uniform pore diameter, pore density and pore depth. Pins are inserted to a predetermined depth into a softened thermoplastic substrate or, heated pins are inserted into the substrate, then removed to form the predetermined pore pattern.

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