POLYURETHANE POROUS PRODUCT AND MANUFACTURING METHOD THEREOF AND POLISHING PAD HAVING POLYURETHANE POROUS PRODUCT,申请号US20100730631-传众专利搜索

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发明名称	POLYURETHANE POROUS PRODUCT AND MANUFACTURING METHOD THEREOF AND POLISHING PAD HAVING POLYURETHANE POROUS PRODUCT
摘要	The present invention relates to a method for manufacturing a polyurethane porous product, a polyurethane porous product according to the manufacturing method, and a polishing pad having the polyurethane porous product. According to the present invention, it is possible to manufacture a polishing pad that has excellent polishing efficiency and has a minimal difference in the polishing characteristic during a polishing process and improves uniformity in plane of material that will be polished because the polyurethane porous product of the present invention has small density difference, small hardness difference, and the stabilized quality of material.
申请公布号	US2010247868(A1)	申请公布日期	2010.09.30
申请号	US20100730631	申请日期	2010.03.24
申请人	DONG SUNG A&T CO., LTD.	发明人	CHA YOON JONG;HAHN HO CHAHN;CHO MIN CHUL
分类号	B24D11/00;B24D3/00;B24D11/02;B32B3/30;B32B7/02;B32B27/40	主分类号	B24D11/00
代理机构		代理人
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