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Title:
METHOD FOR PRODUCTION OF POLISHING PAD
Document Type and Number:
WIPO Patent Application WO/2008/029537
Kind Code:
A1
Abstract:
Disclosed is a method for production of a polishing pad having excellent durability at a low cost and in a simple manner. The method comprises the steps of: preparing a cell-dispersed urethane composition by a mechanical foaming technique; applying the cell-dispersed urethane composition onto a substrate layer; curing the cell-dispersed urethane composition to form a polyurethane foam layer having approximately spherical interconnected cells therein; and making the thickness of the polyurethane foam layer uniform.

Inventors:
FUKUDA, Takeshi (LTD.17-18 Edobori 1-chome, Nishi-k, Osaka-shi Osaka 61, 5508661, JP)
福田 武司 (〒61 大阪府大阪市西区江戸堀1丁目17番18号 東洋ゴム工業株式会社内 Osaka, 5508661, JP)
MARUYAMA, Satoshi (LTD.17-18 Edobori 1-chome, Nishi-k, Osaka-shi Osaka 61, 5508661, JP)
丸山 覚史 (〒61 大阪府大阪市西区江戸堀1丁目17番18号 東洋ゴム工業株式会社内 Osaka, 5508661, JP)
HIROSE, Junji (LTD.17-18 Edobori 1-chome, Nishi-k, Osaka-shi Osaka 61, 5508661, JP)
Application Number:
JP2007/058757
Publication Date:
March 13, 2008
Filing Date:
April 23, 2007
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO., LTD. (17-18, Edobori 1-chome Nishi-ku, Osaka-sh, Osaka 61, 5508661, JP)
東洋ゴム工業株式会社 (〒61 大阪府大阪市西区江戸堀1丁目17番18号 Osaka, 5508661, JP)
FUKUDA, Takeshi (LTD.17-18 Edobori 1-chome, Nishi-k, Osaka-shi Osaka 61, 5508661, JP)
福田 武司 (〒61 大阪府大阪市西区江戸堀1丁目17番18号 東洋ゴム工業株式会社内 Osaka, 5508661, JP)
MARUYAMA, Satoshi (LTD.17-18 Edobori 1-chome, Nishi-k, Osaka-shi Osaka 61, 5508661, JP)
丸山 覚史 (〒61 大阪府大阪市西区江戸堀1丁目17番18号 東洋ゴム工業株式会社内 Osaka, 5508661, JP)
International Classes:
B24B37/00; C08G18/00; H01L21/304
Attorney, Agent or Firm:
OZAKI, Yuzo et al. (SHIN-OSAKA MT Bldg. 1, 13-9 Nishinakajima 5-chome, Yodogawa-ku, Osaka-sh, Osaka 11, 5320011, JP)
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