Abstract: An anti-slipping material consisting of a thermoplastic elastomer composition, wherein the composition comprises (a) 100 parts by weight of a thermoplastic elastomer composed of a hydrogenated block copolymer obtained by hydrogenating a block copolymer having polymer block (A) consisting of a vinyl aromatic compound in molecule, and having a polymer block (B) consisting of a conjugated diene compound in molecule, (b) 150 to 200 parts by weight of a softener, and (c) 25 to 50 parts by weight of a propylene-based resin having a molecular weight distribution Mw/Mn, which is weight-average molecular weight/number-average molecular weight, of 3.0 or lower.

Abstract: An anti-slipping material consisting of a thermoplastic elastomer composition, wherein the composition comprises (a) 100 parts by weight of a thermoplastic elastomer composed of a hydrogenated block copolymer obtained by hydrogenating a block copolymer having polymer block (A) consisting of a vinyl aromatic compound in molecule, and having a polymer block (B) consisting of a conjugated diene compound in molecule, (b) 150 to 200 parts by weight of a softener, and (c) 25 to 50 parts by weight of a propylene-based resin having a molecular weight distribution Mw/Mn, which is weight-average molecular weight/number-average molecular weight, of 3.0 or lower.

Abstract: A piezoelectric sound generating element capable of providing flatter and less fluctuated sound pressure frequency characteristics includes a diaphragm that is formed in a circular plate shape with a circular profile. A piezoelectric element is affixed to the side of a bottom wall portion of the diaphragm. The piezoelectric element has an asymmetric octagonal profile including a pair of long side portions opposing each other, a pair of short side portions opposing each other, and four connecting side portions.

Abstract: A thermoplastic polymer composition has good flexibility, lightweight properties, moldability, and heat resistance, and in particular, is excellent in wear resistance. The thermoplastic polymer composition includes: at least one block copolymer (a) selected from among an ?-methylstyrene based block copolymer having a number average molecular weight of 30,000 to 500,000 and a hydrogenated product thereof, the ?-methylstyrene based block copolymer including a polymer block A mainly composed of an ?-methylstyrene unit and a polymer block B mainly composed of a conjugated diene unit; a propylene-based polymer (b); and an ethylene-based polymer (c) having a density of 0.94 g/cm3 or less, in a ratio satisfying the following inequalities (1) and (2): 0.1?W(a)/[W(a)+W(b)+W(c)]?0.8??(1) 1?W(b)/W(c)??(2) wherein W(a), W(b), and W(c) represent the masses of the block copolymer (a), the propylene-based polymer (b), and the ethylene-based polymer (c), respectively.

Abstract: A piezoelectric sound generating element capable of providing flatter and less fluctuated sound pressure frequency characteristics includes a diaphragm that is formed in a circular plate shape with a circular profile. A piezoelectric element is affixed to the side of a bottom wall portion of the diaphragm. The piezoelectric element has an asymmetric octagonal profile including a pair of long side portions opposing each other, a pair of short side portions opposing each other, and four connecting side portions.

Abstract: A thermoplastic polymer composition has good flexibility, lightweight properties, moldability, and heat resistance, and in particular, is excellent in wear resistance. The thermoplastic polymer composition includes: at least one block copolymer (a) selected from among an ?-methylstyrene based block copolymer having a number average molecular weight of 30,000 to 500,000 and a hydrogenated product thereof, the ?-methylstyrene based block copolymer including a polymer block A mainly composed of an ?-methylstyrene unit and a polymer block B mainly composed of a conjugated diene unit; a propylene-based polymer (b); and an ethylene-based polymer (c) having a density of 0.94 g/cm3 or less, in a ratio satisfying the following inequalities (1) and (2): 0.1?W(a)/[W(a)+W(b)+W(c)]?0.8??(1) 1?W(b)/W(c)??(2) wherein W(a), W(b), and W(c) represent the masses of the block copolymer (a), the propylene-based polymer (b), and the ethylene-based polymer (c), respectively.