Biaxially oriented, UV-stabilized, single- or multilayer polyester film with a combination of silicon dioxide particles as light-scattering particles and UV stabilizer, process for producing same and use thereof in greenhouse blinds

A single- or multilayer polyester film with transparency from 70 to 92%, where the film is either a single-layer film or a multilayer film containing a mixture of light-scattering and windability particles, said film comprising a base layer and one or more external layers:

• the single-layer film or base layer comprises first SiO2 particles as light-scattering particles, present in an amount of at least 1.0% by weight and at most 2.0% by weight, wherein the first SiO2 particles have a ids d50 particle size of from 5 to 9 μm,
• the film has a standard viscosity (SV) value of at least 700,
• the film has a scattering factor SF of at least 2 and not more than 8,
• the film has a haze of from 70 to 95%, and
• the film has a clarity of from 15 to 40%;
• and
• either the single-layer film or one or more external layer of the multilayer film comprise at least 0.3% by weight, based on the weight of the layer, of an organic UV stabilizer,
• the film has a total thickness of at least 13 μm and at most 25 μm, and
• the windability particles are smaller than the light-scattering particles.