专利名称：Biaxially oriented polyester film with
spherical particles and titanium dioxideparticles
发明人：KONRAD, MATTHIAS, DR.,WITTE, INA,
DR.,KUHMANN, BODO
申请号：EP11003319.8申请日：20110420公开号：EP2386594A3公开日：20130227
摘要：Single- or multi-layered, biaxially oriented and heat-set film based on polyester,comprises a layer or at least one layer based on polyester comprising 0.25-1.5 wt.% ofspherical particles of organic and/or inorganic/organic material, based on the totalweight of the layer. The particles are insoluble in polyester. The particles exhibit anaverage particle size of 0.5-3 mu m and comprises titanium dioxide (0.25-1.5 wt.%)particles with an average particle size of 0.02 0.6 mu m. An independent claim is alsoincluded for producing the film, comprising (a) extruding a polyester melt, whichcomprises the spherical particles and the titanium dioxide particles with a wide slotnozzle, (b) removing and solidifying the resulting precursor film on at least one,preferably cooled roller, (c) biaxially orienting the solidified precursor film preferablyfirst in a longitudinal direction at 80-130[deg] C, then in a transverse direction at 80-150[deg] C, (d) heat-setting the oriented film over a period of 0.1-10 seconds at atemperature of 150-250[deg] C, and (e) optionally coating the heat-set film, where thecoating exhibits preferably adhesion-promoting, anti-static, slippage enhancing,
hydrophilic and/or anti-adhesive properties.
申请人：MITSUBISHI POLYESTER FILM GMBH
地址：Kasteler Strasse 45 65203 Wiesbaden DE
国籍：DE
代理机构：Schweitzer, Klaus
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容