公开(公告)号：US20110151240A1

公开(公告)日：2011-06-23

申请号：US13038849

申请日：2011-03-02

申请人： Junji HIROSE ,  Takeshi FUKUDA

发明人： Junji HIROSE ,  Takeshi FUKUDA

IPC分类号： B32B3/26

CPC分类号： B29C44/06 ,  B32B5/022 ,  B32B5/20 ,  B32B5/245 ,  B32B7/12 ,  B32B27/065 ,  B32B27/12 ,  B32B27/36 ,  B32B2262/0246 ,  B32B2266/0278 ,  B32B2266/06 ,  B32B2307/724 ,  B32B2457/00 ,  B32B2457/14 ,  B32B2551/00 ,  B32B2551/08 ,  C08G18/12 ,  C08G18/4072 ,  C08G18/4277 ,  C08G18/4854 ,  C08G18/6564 ,  C08G18/6607 ,  C08G2101/00 ,  C08G2101/0008 ,  C08J9/30 ,  C08J2375/04 ,  H01L21/6836 ,  H01L2221/68327 ,  H01L2924/01012 ,  Y10T428/249975 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249991 ,  C08G18/3206

摘要： Provided herein is a process for producing a layered sheet. The process involves preparing a cell dispersed urethane composition by a mechanical foaming method. The cell dispersed urethane composition is applied to a base material sheet and cured to produce a polyurethane foam layer of uniform thickness. A releasing sheet may be utilized to make the thickness of the polyurethane foamed layer uniform. Also, provided herein is a layered sheet produced by the above process. The polyurethane foamed layer may have spherical fine cells having an average cell diameter of 20 to 300 μm. The polyurethane foamed layer may have a specific gravity of 0.2 to 0.5. The polyurethane foamed layer may also have a Asker C hardness of 10 to 50 degrees.

摘要翻译： 本文提供了一种生产层状片的方法。 该方法包括通过机械发泡方法制备细胞分散的聚氨酯组合物。 将细胞分散的氨基甲酸酯组合物施加到基材片上并固化以制备均匀厚度的聚氨酯泡沫层。 可以使用脱模片来使聚氨酯泡沫层的厚度均匀。 此外，本发明提供了通过上述方法制造的层状片材。 聚氨酯泡沫层可以具有平均泡孔直径为20〜300μm的球状细胞。 聚氨酯泡沫层的比重可以为0.2〜0.5。 聚氨酯泡沫层也可以具有10至50度的Asker C硬度。

公开(公告)号：US20130340351A1

公开(公告)日：2013-12-26

申请号：US13918341

申请日：2013-06-14

申请人： Takeshi FUKUDA ,  Tsuguo WATANABE ,  Junji HIROSE ,  Kenji NAKAMURA ,  Masato DOURA

发明人： Takeshi FUKUDA ,  Tsuguo WATANABE ,  Junji HIROSE ,  Kenji NAKAMURA ,  Masato DOURA

IPC分类号： B24D11/00

CPC分类号： B24D11/003 ,  B24B37/205 ,  B24B37/22 ,  B24B37/24 ,  B24B37/26 ,  B24D3/32 ,  B24D18/00 ,  B29C44/24 ,  B29C44/308 ,  B29C44/32 ,  B29C44/322 ,  B29C44/326 ,  B29C44/5654 ,  C08J9/30 ,  C08J2375/08 ,  Y10T156/1052 ,  Y10T156/1059

摘要： A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad.