公开(公告)号：EP1701583A4

公开(公告)日：2009-11-04

申请号：EP04807571

申请日：2004-12-22

申请人： OG CORP

发明人： YASUGAHIRA KICHIRO ,  TAKAHASHI KEN

IPC分类号： H04R7/02 ,  H04R7/10 ,  H04R7/12

CPC分类号： H04R7/10 ,  H04R7/125 ,  H04R2307/021 ,  H04R2307/029

公开(公告)号：EP1571871A4

公开(公告)日：2006-11-22

申请号：EP03777355

申请日：2003-12-08

申请人： OG CORP ,  MATSUSHITA ELECTRIC IND CO LTD

发明人： ISHIDA HIROYUKI ,  TAKAHASHI KEN ,  SUZUKI TAKASHI ,  OMORI TATSUYA ,  MIZONE SHINYA

IPC分类号： B27N1/02 ,  C08B3/20 ,  C08L1/00 ,  C08L1/10 ,  C08L23/00 ,  C08L25/04 ,  C08L67/00 ,  C08L97/02 ,  C08L101/00 ,  H04R1/02 ,  H04R1/28

CPC分类号： H04R1/288 ,  C08B3/20 ,  C08L1/10 ,  C08L23/00 ,  C08L25/04 ,  C08L67/00 ,  C08L97/02 ,  C08L2666/02

摘要： A material suitable for speaker cabinets which comprises a mixture of a synthetic resin with a powdery cellulosic material was developed while directing attention to powdery cellulosic materials, e.g., wood, having excellent material properties when applied to speaker cabinet materials. The speaker cabinet is made from a mixture comprising a chlorine-free synthetic resin and a cellulosic powder having a particle size distribution of 5 to 500 µm. The cellulosic powder has been surface-treated in order to impart an affinity for the synthetic resin to the cellulosic powder. This speaker cabinet is small and has excellent acoustic performance. It further has excellent producibility and can be provided inexpensively to the market.