FIELD: physics.
SUBSTANCE: curtain material is made from colourless transparent fire protective film composite material comprising two layers of transparent PET-film. An additional film layer is adhered to the one side of the first film layer by a glue; the glue and at least one of the two above polymer PET-film layers contain fire protective material. Two PET-film layers contain also UV-radiation adsorbing material. The turbidity of this composite material is less than 10%, visible light transmission - less than 30%. The material meets the fire resistance requirements of the DIN4102:B2 Standard.
EFFECT: shading from the sunlight and possibility of using as sound adsorbers.
15 cl, 6 tbl, 6 dwg
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