| abstract |
The present invention relates in a first embodiment to a polymer film comprisingna propylene random copolymer with a total comonomer content ofn4.5 to 12 mol% wherein the sealing initiation temperature SIT of the film isnT m - 30°C or less, preferably T m - 33°C or less, in a second embodiment tona polymer film comprising a propylene random copolymer with a total comonomerncontent of 4.5 to 12 mol% wherein the film is having a relativenreduction of the static friction value (inside-inside) from one to four days ofn35 % or more, preferably 40 % or more, in a third embodiment to a polymernfilm comprising a propylene random copolymer with a total comonomerncontent of 4.5 to 12 mol% wherein the distribution of the comonomer in thenrandom copolymer determined according to TREF method is multimodal,npreferably bimodal, in a fourth embodiment to a polymer film comprising anpropylene random copolymer with a total comonomer content of 4.5 to 12nmol%, wherein the copolymer is having an elution interval of 50°C or more,nand in a fifth embodiment to a polymer film comprising a copolymer with antotal comonomer content of 4.5 to 12 mol% wherein the random copolymernis a unimodal polymer and the elution interval is determined by the equationn Y ≤ 4.5 · m + 16 nwherein Y is the elution interval in °C and nm is the percentage of ethylene in the copolymer in wt.%. |