Fujimi Incorporated

Eiichi Yamada

Hitoshi Morinaga

Kazusei Tamai

Tomoaki Ishibashi

Youhei Takahashi

Taira Otsu

Naoyuki Ishihara

Abrasives, a polishing composition, and a polishing method that can reduce undulation of an outer surface of a resin coating by polishing with reduced occurrence of polishing flaws. The polishing composition includes abrasives of aluminium oxide particles having a specific surface area of 5 m/g or more and 50 m/g or less and an average secondary particle diameter of 0.05 &#x3bc;m or more and 4.8 &#x3bc;m or less. This polishing composition can be used for polishing an outer surface of the resin coating.

Abrasives, polishing composition, and polishing method

A polishing composition contains a compound represented by the general formula (1) below and abrasive grains. In the general formula (1), X represents a residue of polyether polyol (having a polyether chain containing an oxyethylene group in an amount of 20 to 90% by mass) derived from a compound having an active hydrogen atom and an alkylene oxide; m represents an integer of 2 to 8, which is equal to the number of hydroxy groups contained in a single polyether polyol molecule; Y and Z represent a lower alcohol residue to which ethylene oxide or propylene oxide is added by addition polymerization, an alkyl group or an alkylene group, respectively; and n is an integer of 3 or more. 

Polishing composition and polishing method

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Aichi, Japan

Eiichi Yamada