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Patent 7163450
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Document Number
US Patent 7163450
Issued Date
January 16, 2007
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Inventors
Kawamura; Koichi (Shizuoka-ken,JP)
Yagihara; Morio (Shizuoka-ken,JP)
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Abstract
The present invention provides an abrasive pad for abrading a surface to be abraded in the presence of an abrasive solution, which includes a hydrophobic polymer as a base material, and in which a graft-polymer chain having a hydrophilic group is introduced into the surface of the hydrophobic polymer. The hydrophilic group possessed by the graft-polymer chain is preferably a nonionic hydrophilic group selected from the group consisting of hydrophilic groups having an N-monoalkyl substituted structure and hydrophilic groups having an N-dialkyl substituted amide group. An amount of the hydrophilic graft-polymer to be introduced into the base material is preferably 10.0% to 150.0% in terms of graft ratio.
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Number of Claims:
17
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Published
January 16, 2007
Application Number
10/810,657
Filed
March 29, 2004
US Classification
451/526   451/533 451/534
Int'l Classification
B24D   11/00   (20060101)  
Attorney/Law Firm
Priority Data
Mar 31, 2003 [JP] 2003-095930
USPTO Field of Search
451/41   451/285   451/287   451/288   451/526   451/528   451/530   451/533   451/532   451/534   51/298   51/300  
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