Method for removing unreacted components from hydrogel...

Details Method for removing unreacted components from hydrogel... Method for removing unreacted components from hydrogel...

B - Operations, Transporting

29

C

B29C 71/00 (2006.01) B29D 11/00 (2006.01)

Patent

CA 2634101

The present invention provides a method for the removal of unreacted components and diluents from an article fashioned from silicone hydrogel by using an aqueous solution comprising a leaching agent comprising ethoxylated nonylphenol, heating and rinsing until the level of unreacted components and diluents are below a predetermined threshold.

L'invention concerne des procédés et des appareil qui permettent de faciliter la suppression des composants et des diluants inaltérés d'un article constitué d'hydrogel de silicone et/ou l'enlèvement de l'article d'une partie de moulage à laquelle l'article est collé.

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