公开(公告)号：US20030104197A1

公开(公告)日：2003-06-05

申请号：US09996777

申请日：2001-11-30

Applicant: JSP CORPORATION

Inventor： Kazuhiko Morita ,  Takashi Muroi ,  Hirotoshi Kakuta

IPC: B32B003/26

CPC classification number: B32B27/32 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/249976 ,  Y10T428/249977 ,  Y10T428/249986 ,  Y10T428/249988 ,  Y10T428/249991 ,  Y10T428/249992

Abstract: The present invention relates to a sheet or board like multiple layers laminated polyolefin foam having a plurality of polyolefin layers laminated on at least one side of a polyolefin foam by a coextrusion method. More specifically, the present invention relates to said multiple layers laminated polyolefin foam, wherein the thickness of the outermost layer constituting the plurality of polyolefin layers is 5 to 80 nullm, and the density d (g/L) of the polyolefin foam, the melt flow rate null (g/10 min) of the polyolefin constituting the innermost layer among the plurality of polyolefin layers, and the thickness Y (nullm) of the innermost layer of the multiple polyolefin layers satisfy the following relationships (1) to (4). Ynull0.29dnullnullnull(1) 5nullnullnull40 nullnull(2) 70nullYnull300 nullnull(3) 100nulldnull300 nullnull(4)

Abstract translation: 本发明涉及通过共挤出法在聚烯烃泡沫的至少一面层叠多个聚烯烃层的多层层压聚烯烃泡沫的片材或板。 更具体地，本发明涉及所述多层层压聚烯烃泡沫，其中构成多个聚烯烃层的最外层的厚度为5-80μm，聚烯烃泡沫的密度d（g / L），熔体 在多个聚烯烃层中构成最内层的聚烯烃的流量x（g / 10分钟）和多个聚烯烃层的最内层的厚度Y（母体）满足以下关系式（1）至（4） 。 Y <= 0.29dx（1）5 <= x <= 40（2）70 <= Y <= 300（3）100 <= d <= 300（4）

公开(公告)号：US20010050194A1

公开(公告)日：2001-12-13

申请号：US09730742

申请日：2000-12-07

Applicant: JSP CORPORATION

Inventor： Yoshihisa Ishihara ,  Takeshi Aoki ,  Satoshi Iwasaki ,  Hirotoshi Kakuta

IPC: H04R007/00 ,  G10K013/00

CPC classification number: H04R7/00 ,  H04R2307/029

Abstract: The present invention provides a speaker unit comprising a diaphragm of 0.5 to 10 mm thick aromatic polycarbonate with a density of 0.03 to 0.6 g/cm3, and a mechanism for driving the diaphragm. The aromatic polycarbonate used for the diaphragm is preferably derived from bisphenol with a viscosity average molecular weight of 25,000 to 70,000. The invention further provides a speaker system comprising such a speaker unit attached to a cabinet and a method for manufacturing the speaker diaphragm.

Abstract translation: 本发明提供一种扬声器单元，其包括密度为0.03至0.6g / cm 3的0.5至10mm厚的芳族聚碳酸酯的隔膜和用于驱动隔膜的机构。 用于隔膜的芳族聚碳酸酯优选衍生自粘均分子量为25,000至70,000的双酚。 本发明还提供一种扬声器系统，其包括附接到机壳的扬声器单元和用于制造扬声器振膜的方法。