Biaxially oriented polyester film with spherical particles and titanium dioxide - particles

摘要

What is described is a a - or multilayer, biaxially oriented and thermoset film on the basis of polyester, wherein the layer or at least one layer on the basis of polyester 0,25 to 1,5 w -%, based on the total weight of the layer of spherical particles of organic and / or inorganic / organic material, which is insoluble in the polyester, wherein the particles having a mean particle size (d₅₀) from 0,5 to 3,0 μm, and 0,25 to 1,5 w -% of titanium dioxide - particles having a mean particle size (d₅₀) of 0,02 to 0,6 μm contains. The polyesters preferably has a viscosity coefficient of less than 1,3 on. The film is suitable as a transfer - or release film, in particular in the production of flexographic printing plates.