Film without a release layer comprising at least two layers, process for the production thereof and use thereof

摘要

The characteristics of an at least 2-layered film with a low-melting side (LMS) and a high melting side (HMS) are that: (i) the HMS is of a thermoplastic polyurethane which softens at above 100 degrees C on the ''Koflerbank'' and whose softening range mid-pt. is at least 15 degrees C above that of the lower melting layer; (ii) the matrix component of the LMS is of a heat-adhesive thermoplastic polyamide, polyester or polyurethane with a softening range mid-pt. below 100 degrees C on the ''Koflerbank''; and (iii) the LMS has added to it an additive concentrate comprising (in)org. particles and a thermoplastic matrix resin.