A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 29/00 (2006.01) A61L 29/04 (2006.01) A61L 31/04 (2006.01) C08L 43/00 (2006.01)
Patent
CA 2182362
A polymer material (6) is formed from a first polyethylene component (1) having a low density (VLDPE) which is silane-grafted with an organic silane (3) in combination with organic peroxide (4) and is cross-linked through storage in a damp environment and/or in water. The polymer material (6) can be processed into medical instruments under dry conditions prior to cross-linkage. After cross-linkage the medical instruments made from the polymer material (6) exhibit a high degree of transparency, are non-buckling and flexible. The polymer material (6) is produced in an extruder, preferentially in a double-worm extruder.
L'invention concerne un matériau polymère (6) constitué d'un premier composant polyéthylène (1) basse densité (VLDPE), sur lequel est greffé un organosilane (3) en combinaison avec un peroxyde organique (4) et qui est réticulé par le stockage en environnement humide et/ou dans de l'eau. Ce matériau polymère (6) peut être transformé en instruments médicaux, sans humidité, avant la réticulation. Après la réticulation, les instruments médicaux fabriqués dans ce matériau polymère (6) ont une transparence élevée, résistant au flambage et sont flexibles. Ce matériau polymère (6) est fabriqué dans une extrudeuse, de préférence une extrudeuse à deux vis.
Anderlik Rainer
Fritz Hans-Gerhard
Heider Michael
Singvogel Armin
Cassan Maclean
Willy Rusch Ag
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