TECHNOLOGY FOCUS - POLYMERS - Preferred Compound: The aromatic vinyl-type resin is rubber-reinforced aromatic vinyl-type resin obtained by polymerizing vinylic monomer containing aromatic vinyl compound and co-polymerizable monomers and (co)polymer of vinylic monomer in presence of rubbery polymer. The rubbery polymer is conjugated diene type rubber, ethylene- alpha -olefin type rubber, hydrogenated conjugated diene type rubber, acrylic type rubber, silicone type rubber and/or silicone acryl compound rubber. Preferred Composition: The aromatic vinyl-type resin contains repeating unit derived from maleimide-type compound. The thermoplastic resin contains rubber reinforced vinyl-type resin obtained by polymerizing vinylic monomer and (co)polymer of vinylic monomer in presence of rubbery polymer. The thermoplastic resin contains repeating unit derived from maleimide-type compound. Preferred Properties: The content of rubbery polymer is 5-40 mass parts with respect to aromatic vinyl-type resin (100 mass parts). The content of repeating unit derived from maleimide-type compound is 1-30 mass% with respect to aromatic vinyl-type resin (100 mass%). The content of rubbery polymer is 5-40 mass parts with respect to thermoplastic resin (100 mass parts). The content of repeating unit derived from maleimide-type compound is 1-30 mass% with respect to thermoplastic resin (100 mass%). The glass transition temperature (T1) of thermoplastic resin is 120-220 degrees C. The glass transition temperature (T2) of aromatic vinyl-type resin satisfies the relation: (T1-T2) greater than or equal to 10 degrees C. The ratio of thickness of a layer (I) containing aromatic vinyl-type resin and thickness of a layer (II) containing thermoplastic resin is 0.5-1.5. The ratio of sum of thickness of layer (I) containing aromatic vinyl-type resin and thickness of layer (II) containing thermoplastic resin, and thickness of a layer (III) containing aromatic vinyl-type resin is 0.4-2.4. The laminated material has dimensional-change rate on processing at 150 degrees C for 30 minutes of 1% to -1%. The laminated material is in sheet form or film-form.