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Patent Searching and Data


Title:
ENTRY SHEET FOR DRILLING USE
Document Type and Number:
WIPO Patent Application WO/2013/132837
Kind Code:
A1
Abstract:
The present invention relates to an entry sheet for drilling use, which can exhibit excellent hole location accuracy even when transported at ambient temperature for a long time and/or when stored under a thermal environment having a higher temperature than in Japan. More specifically, the present invention relates to an entry sheet for drilling a laminated board or a multi-layered board, which is characterized by comprising a metallic support foil and a layer of a water-soluble resin composition (also referred to as a water-soluble resin composition layer) formed on at least one surface of the metallic support foil and comprising a water-soluble resin, a water-soluble lubricant and a linear unsaturated fatty acid salt, wherein the water-soluble resin composition layer is formed by cooling from a cooling start temperature of 120 to 160˚C to a cooling end temperature of 25 to 40˚C over 60 seconds or shorter at a cooling rate of 1.5˚C/sec or more, the degree of crystallinity of the water-soluble resin composition is 1.2 or more, the standard deviation (σ) of the surface hardness of the water-soluble resin composition layer is 2 or less, and the surface hardness of the water-soluble resin composition layer is 8.5 to 25 N/mm2 inclusive.

Inventors:
MATSUYAMA YOUSUKE (JP)
HASAKI TAKUYA (JP)
Application Number:
PCT/JP2013/001370
Publication Date:
September 12, 2013
Filing Date:
March 05, 2013
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
B26F1/16; C10M105/18; C10M107/34; C10M129/32; C10M129/40; C10M145/14; C10M145/26; C10M145/38; C10M145/40; C10M149/10; C10M149/18; C10M169/04; C10M173/02; H05K3/00; C10N10/02; C10N20/00; C10N20/04; C10N30/00; C10N40/22
Domestic Patent References:
WO2011158510A12011-12-22
WO2012035771A12012-03-22
Foreign References:
JP2003225892A2003-08-12
JP2011079080A2011-04-21
JPH0516028U1993-03-02
JP2004131776A2004-04-30
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
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Claims: