| abstract |
Disclosed herein are radiopaque bag closures comprising a flat resinous body having an access opening and a bag-holding central aperture, wherein the access opening joins the bag-holding central aperture to define a continuous space, and wherein the flat resinous body comprises a radiopaque composite resin having a carrier resin having one or more thermoplastic polymers and a radiopaque ceramic material dispersed in the carrier resin in a loading amount of 0.05-15% w/w. |