| 摘要 |
<p>Preparation by extrusion or coextrusion of single- or multilayer biaxially oriented and thermally fixed films, containing as a main component a crystallizable thermoplastic (CT) of standard viscosity SV (DCE) 600-1000, where prior to extrusion the CT is mixed with less than 50 wt.%, of a secondary thermoplastic of standard viscosity SV (DCE) more than 900-1500, where the standard viscosities of the two thermoplastics differ by at least 100 units is new. A process for preparation by extrusion or coextrusion of single- or multilayer biaxially oriented and thermally fixed films, based on crystallizable thermoplastics containing as a main component a crystallizable thermoplastic (CT) of standard viscosity SV (DCE) 600-1000, where prior to extrusion or coextrusion the thermoplastic is mixed with up to less than 50 wt.%, on the total weight of thermoplastics, of a secondary thermoplastic of standard viscosity SV (DCE) more than 900-1500, where the standard viscosities of the two thermoplastics differ by at least 100 units</p> |
