Title:
ドリル孔あけ用エントリーシート、及びそれを用いたドリル孔あけ加工方法
Document Type and Number:
Japanese Patent JP6631851
Kind Code:
B2
Abstract:
This entry sheet for drilling holes is provided with a metal foil, and a resin composition layer which is formed on the metal foil without providing an adhesive layer therebetween. In infrared spectroscopic analysis, the resin composition layer has a carbon-oxygen double bond peak present in the range of 1700-1750 cm-1, and a carbon-oxygen single bond peak present in the range of 1080-1300 cm-1. Furthermore, when Abs(C=O)L represents the absorbance of the carbon-oxygen double bond peak present in the range of 1700-1750 cm-1, and Abs(C-O)L represents the absorbance of the carbon-oxygen single bond peak present in the range of 1080-1300 cm-1, the resin-composition-layer absorbance ratio (C) represented by formula (1), namely absorbance ratio (C) = Abs(C=O)L/Abs(C-O)L, is 0.12-1.80.
Inventors:
Takayuki Kamei
Yousuke Matsuyama
Takaaki Ogashi
Yousuke Matsuyama
Takaaki Ogashi
Application Number:
JP2017506165A
Publication Date:
January 15, 2020
Filing Date:
February 24, 2016
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
B26F1/16; B23B35/00; B23B41/00; H05K3/00; H05K3/46
Domestic Patent References:
| JP2009172752A | ||||
| JP2001347493A | ||||
| JP2008222762A |
Foreign References:
| WO2010140333A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Kazuhiko Naito
Toshifumi Onuki
Kazuhiko Naito