| abstract |
Multiple layer film of structure A / B / C comprising: - a first layer of composition A comprising 100% by weight of a VDF homopolymer or copolymer; - a second layer of composition B comprising from 30 to 75 parts of a homopolymer or copolymer of VDF, from 5 to 45 parts of homopolymer or copolymer of MMA and from 10 to 30 parts of at least one mineral filler, in total 100 parts; and - a third layer of composition C comprising 100% of a homopolymer or copolymer of VDF, in which the first and third layers have a melting point greater than 150 ° C measured by DSC and the visible light transmittance is less than 30% for a thickness of the multilayer film of 25µm. |