公开(公告)号：US20110039966A1

公开(公告)日：2011-02-17

申请号：US12989241

申请日：2009-04-21

申请人： Michiro Goto ,  Kazuo Takemoto ,  Nobuyuki Ooshima ,  Shin-ichi Haba ,  Kouichi Yoshida ,  Norio Kawai

发明人： Michiro Goto ,  Kazuo Takemoto ,  Nobuyuki Ooshima ,  Shin-ichi Haba ,  Kouichi Yoshida ,  Norio Kawai

IPC分类号： C08G18/32

CPC分类号： B24B37/24 ,  B24D3/32 ,  C08G18/3206 ,  C08G18/4841 ,  C08G18/664 ,  C08G18/6674 ,  C08G18/797 ,  C08G2101/00 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G2120/00

摘要： The present invention provides a polyurethane foam, which, despite having a low specific gravity, has a hardness and an elasticity favorable for a polishing pad, and a polishing pad made using the polyurethane foam. The polyurethane foam is obtained by reacting a blend composition containing (A) polyisocyanate, (B) a polyol, (C) a chain extender with a molecular weight of equal to or smaller than 400, and (D) water, and in the blend composition, MDI is blended as a main component of the component (A) and a blending amount of the MDI is 45 to 70 parts by weight when a total weight of the respective components (A), (B), and (C) is taken as 100 parts by weight.

摘要翻译： 本发明提供一种尽管具有低比重的聚氨酯泡沫，其具有有利于抛光垫的硬度和弹性，以及使用聚氨酯泡沫制成的抛光垫。 聚氨酯泡沫体是通过使包含（A）多异氰酸酯，（B）多元醇，（C）分子量等于或小于400的扩链剂的（A）多异氰酸酯和（D）水的共混组合物和在共混物 组合物，MDI作为组分（A）的主要组分，当各组分（A），（B）和（C）的总重量为 作为100重量份。

公开(公告)号：US08557005B2

公开(公告)日：2013-10-15

申请号：US12989241

申请日：2009-04-21

申请人： Michiro Goto ,  Kazuo Takemoto ,  Nobuyuki Ooshima ,  Shin-ichi Haba ,  Kouichi Yoshida ,  Norio Kawai

发明人： Michiro Goto ,  Kazuo Takemoto ,  Nobuyuki Ooshima ,  Shin-ichi Haba ,  Kouichi Yoshida ,  Norio Kawai

IPC分类号： B24B1/00 ,  B24D11/02 ,  C08G18/00

CPC分类号： B24B37/24 ,  B24D3/32 ,  C08G18/3206 ,  C08G18/4841 ,  C08G18/664 ,  C08G18/6674 ,  C08G18/797 ,  C08G2101/00 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G2120/00

摘要： The present invention provides a polyurethane foam, which, despite having a low specific gravity, has a hardness and an elasticity favorable for a polishing pad, and a polishing pad made using the polyurethane foam. The polyurethane foam is obtained by reacting a blend composition containing (A) a polyisocyanate, (B) a polyol, (C) a chain extender with a molecular weight of equal to or smaller than 400, and (D) water, and in the blend composition, MDI is blended as a main component of the component (A) and a blending amount of the MDI is 45 to 70 parts by weight when a total weight of the respective components (A), (B), and (C) is taken as 100 parts by weight.

摘要翻译： 本发明提供一种尽管具有低比重的聚氨酯泡沫，其具有有利于抛光垫的硬度和弹性，以及使用聚氨酯泡沫制成的抛光垫。 聚氨酯泡沫体是通过使包含（A）多异氰酸酯，（B）多元醇，（C）分子量等于或小于400的扩链剂（C）和（D）水）的共混组合物与 共混组合物，MDI作为组分（A）的主要组分，并且当各组分（A），（B）和（C）的总重量相对于MDI组分时，MDI的混合量为45至70重量份， 作为100重量份。