| abstract |
In a preferred embodiment, a split strip is made by extruding a polyolefin in the form of a sheet in a water bath, by incising the sheet in the form of ribbons after the sheet has been extracted from the water bath, and by elongation of the ribbons as they pass through an oven, the improvement residing in the fact that a combination of a phenolic antioxidant with delayed effect is added to the polyolefin. of a UV stabilizer based on 2-cetodiazacycloalkane in an amount sufficient to reduce the entrainment of water and to improve the stability of the polyolefin during the treatment. |