Abstract: The present invention relates to a composition coextrudable with PVDF and comprising: 30 to 50 parts of PVDF; 70 to 50 parts of a copolymer comprising, by weight, 90 to 50% of methyl methacrylate (MMA) per 10 to 50% of an alkyl (meth)acrylate respectively, the alkyl having from 2 to 24 carbon atoms; 1 to 4 parts of a UV absorber; the total making 100 parts. The invention also relates to coextruded films consisting of this composition as the adhesive layer and a PVDF-based layer of 50 to 100 parts of PVDF per 50 to 0 parts of PMMA respectively. These films possess mechanical properties sufficient to allow them to be used as a coating transparent to visible light but opaque to UV radiation.

Abstract: The invention concerns a multilayer structure comprising: a PVDF-based film F1 affixed to a PET or PEN sheet; or a PVDF-based film F1 bonded to a PET or PEN sheet which is itself affixed to a PVDF-based film F2.

Abstract: The invention relates to the use of a coextruded multilayer film for protecting a (lingo)cellulose material, wherein said multilayer film consists of the following arranged to each other layers: a surface layer (I) comprising PVDF and possibly PMMA in the form of the main components, an intermediate layer (II) comprising in the form of main components 0-60 PVDF parts, 40 to 100 PMMA parts, 0-25 acrylic elastomer parts, and 0-10 UV absorber parts, the totality thereof being equal to 100 parts, and an adhesive layer (III), which comprises a functional PMMA in the form of the main component and is arranged on the side of the (ligno)cellulose material.

Abstract: The invention relates to the use of a multilayer film for protecting a substrate which gives off volatile compounds which comprises: a surface layer comprising, by weight, from 70 to 100%, preferably from 90 to 100%, of a fluoropolymer and from 0 to 30%, preferably from 0 to 10% of an acrylic polymer; an adhesive layer comprising from 50 to 100% of an acrylic polymer, from 0 to 50% of a fluoropolymer, from 1 to 10% of a UV stabilizer and from 0 to 50% of an impact modifier, characterized in that the thickness of the surface layer is between 2 and 15 ?m, preferably between 2 and 10 ?m, more preferably still between 3 and 8 ?m, and the thickness of the adhesive layer is between 30 and 75 ?m, preferably between 30 and 60 ?m, more preferably still between 30 and 50 ?m. The invention also relates to a substrate protected by the multilayer film.

Abstract: The present invention relates to a composition coextrudable with PVDF and comprising: 30 to 50 parts of PVDF; 70 to 50 parts of a copolymer comprising, by weight, 90 to 50% of methyl methacrylate (MMA) per 10 to 50% of an alkyl (meth)acrylate respectively, the alkyl having from 2 to 24 carbon atoms; 1 to 4 parts of a UV absorber; the total making 100 parts. The invention also relates to coextruded films consisting of this composition as the adhesive layer and a PVDF-based layer of 50 to 100 parts of PVDF per 50 to 0 parts of PMMA respectively. These films possess mechanical properties sufficient to allow them to be used as a coating transparent to visible light but opaque to UV radiation.