PACKAGING BIOLOGICAL MATERIALS

摘要

Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes comprise a microporous film or other gas-permeable substrate and, coated on the substrate, a layer of a block copolymer having a heat of fusion of at least 5 J/g and containing polysiloxane polymeric blocks and crystalline polymeric blocks having a melting point of -5 to 40° C.