Thermoplastic acrylic resin brittle film

A thermoplastic acrylic resin brittle film which consists of one or two layers and in which no vinyl chloride resin is used and which has a tensile strength at break of 1.0 to 3.0 kg/mm2, a tear strength of 3.0 to 20.0 g and an elongation at break of 2.0 to 20.0%, and being prepared from a resin composition which comprises

• (A) 100 parts by weight of a thermoplastic acrylic resin which has an elongation at break of 10 to 180%,
• (B) 10 to 70 parts by weight of at least one type of filler selected from the group consisting of (a) fused silica filler comprising aggregates of particles having an average diameter of the particles in the range of 5 to 20 μm and diameters of the particles in the range of 0.5 to 100 μm, (b) aluminum hydroxide comprising aggregates of particles having an average diameter of the particles in the range of 1 to 20 μm and diameters of the particles in the range of 0.2 to 50 μm, (c) barium sulfate comprising aggregates of particles having an average diameter of the particles in the range of 1 to 20 μm and diameters of the particles in the range of 0.2 to 50 μm, and (d) calcium carbonate comprising aggregates of particles having an average diameter of the particles in the range of 0.5 to 20 μm and diameters of the particles in the range of 0.1 to 50 μm, and
• (C) 0 to 30 parts by weight of a plasticizer.