| 简介 |
The invention relates to the use of block copolymers, obtained by controlled radical polymerisation in the presence of alkoxyamine derivatives of substituted nitroxides, for the production of perfectly transparent acrylic films with the mechanical properties required for the applications envisaged , whereby the transparency thereof remains under mechanical stress and a wide temperature range. The total thickness is between 40 and 300 m, preferably 7 0 to 90 m. The film has a haze of less than 2 and elongation at breakage of mo re than 50 %. |
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