| http://www.w3.org/ns/prov#value | - That is, another aspect of the present invention is a method of producing a foamed polyurethane polishing pad, which comprises the steps consisting of adding a silicone-based surfactant to an isocyanate-terminated prepolymer, stirring the mixture in the presence of an inert gas to form a cell dispersion, mixing a chain extender with the cell dispersion to form a foamed reaction solution, and eurin
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