Title:
DRILLING ENTRY SHEET
Document Type and Number:
WIPO Patent Application WO/2010/140333
Kind Code:
A1
Abstract:
Disclosed is a drilling entry sheet is excellent for reducing hole wall roughness and that doesn't attach to the drill. Specifically, a metal foil and a water-soluble resin composition integrally laminated on at least one side of said metal foil are provided. Said water-soluble resin composition contains 30 to 85 parts per weight of a water-soluble resin (A) (number average molecular weight 80,000 to 400,000), 10 to 60 parts per weight of a polyethylene glycol (B) (number average molecular weight 15,000 to 25,000), 5-50 parts per weight of a water-soluble lubricant resin (C), and, for every 100 parts per weight of water-soluble resin mixture (X) comprising said water-soluble resin (A), said polyethylene glycol (B) and said water-soluble lubricant resin (C), contains 0.1 to 5 parts per weight of one or more water-soluble materials (Y) selected from a group comprising polyhydric alcohols, amino alcohol derivatives, organic acids, and organic salts.
Inventors:
MATSUYAMA, Yousuke (INC. Tokyo Techno Park, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 01, 〒1258601, JP)
松山 洋介 (〒01 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社 東京テクノパーク内 Tokyo, 〒1258601, JP)
SHIMIZU, Ken-ichi (INC. Tokyo Techno Park, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 01, 〒1258601, JP)
松山 洋介 (〒01 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社 東京テクノパーク内 Tokyo, 〒1258601, JP)
SHIMIZU, Ken-ichi (INC. Tokyo Techno Park, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 01, 〒1258601, JP)
Application Number:
JP2010/003621
Publication Date:
December 09, 2010
Filing Date:
May 28, 2010
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC. (5-2 Marunouchi 2-chome, Chiyoda-ku Tokyo, 24, 〒1008324, JP)
三菱瓦斯化学株式会社 (〒24 東京都千代田区丸の内２－５－２ Tokyo, 〒1008324, JP)
MATSUYAMA, Yousuke (INC. Tokyo Techno Park, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 01, 〒1258601, JP)
松山 洋介 (〒01 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社 東京テクノパーク内 Tokyo, 〒1258601, JP)
三菱瓦斯化学株式会社 (〒24 東京都千代田区丸の内２－５－２ Tokyo, 〒1008324, JP)
MATSUYAMA, Yousuke (INC. Tokyo Techno Park, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 01, 〒1258601, JP)
松山 洋介 (〒01 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社 東京テクノパーク内 Tokyo, 〒1258601, JP)
International Classes:
B26F1/16; B23B35/00
Attorney, Agent or Firm:
SUGIMURA, Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigaseki, Chiyoda-k, Tokyo 13, 〒1000013, JP)