| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker grill sheet which has perforation suitability adaptive to various designs, little generates blur during perforation, facilitates weight reduction in comparison with metal components and is suitable for a speaker grill application, and to provide a speaker grill obtained by perforating the sheet. SOLUTION: The speaker grill sheet is constituted of a resin composition comprising (A) styrene resin, (B) carbon black, (C) olefin resin and (D) hydrogen-added copolymer resin of styrene monomer and conjugated diene monomer, wherein the resin composition contains (B) carbon black in 5-45 parts by mass with respect to (A) styrene resin in 100 parts by mass, and contains (C) olefin resin in 1-30 parts by mass and (D) copolymer resin in 0.5-10 parts by mass with respect to the total of (A) styrene resin and (B) carbon black in 100 parts by mass. The speaker grill is obtained by perforating the sheet. COPYRIGHT: (C)2009,JPO&INPIT
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