Anti yellowing composition
The present invention relates to a radical scavenging and anti-yellowing composition for polymeric materials and compositions containing the same. The invention further relates to medical devices comprising a composition according to the invention and to a method of sterilizing such devices.
1. A method of sterilizing a medical device, comprising:
exposing the medical device to about 2.5 GGy or more of gamma radiation, wherein the medical device comprises a composition, the composition comprising about 99% bisphenol A-derived polycarbonate, about 1% polypropylene glycol, and about 0.13% dioctadecyl 3,3′-thiodipropionate.
2. The method of claim 1 , wherein the exposing step is carried out in an oxygen-free atmosphere.
3. A composition comprising about 99% bisphenol A-derived polycarbonate, about 1% polypropylene glycol, and about 0.13% dioctadecyl 3,3′-thiodipropionate.