Title:
HEAT-CONDUCTIVE SHEET
Document Type and Number:
Japanese Patent JP2014189727
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve, by forming one surface of a heat-conductive sheet having a moderate tackiness, the workability and reworkability of the heat-conductive sheet.SOLUTION: A heat-conductive sheet is obtained by laminating a tacky heat-conductive layer and a non-tacky resin layer. The tacky heat-conductive layer includes an acrylic resin and a heat-conductive filler, the glass transition point of the acrylic resin is -80 to 15°C, the tackiness thereof is greater than the tackiness of the non-tacky resin layer, the glass transition point of the non-tacky resin layer is 60 to 110°C, and the tackiness thereof is 6-30 kN/min terms of the probe tack measured by pressing and then peeling, onto and from the non-tacky resin layer, a made-of-aluminum cylindrical probe under conditions of pressing rate of 30 mm/min, peeling rate of 120 mm/min, load of 196 g, pressing time of 5.0 sec, pulling distance of 5 mm, probe heating temperature of 40°C, and sheet stage heating temperature of 40°C. The T-type peel strength between the non-tacky resin layer and tacky heat-conductive layer is alternatively 0.2 N/cm or higher.
Inventors:
SUGITA JUNICHIRO
Application Number:
JP2013068724A
Publication Date:
October 06, 2014
Filing Date:
March 28, 2013
Export Citation:
Assignee:
DEXERIALS CORP
International Classes:
B32B27/00; B32B27/18; C09J7/22; C09J7/30; C09J7/38; C09J11/04; C09J11/06; C09J133/00; C09J133/08; C09J133/10; H01L23/373
Domestic Patent References:
| JP2004225022A | 2004-08-12 | |||
| JP2002194306A | 2002-07-10 | |||
| JP2007169568A | 2007-07-05 | |||
| JP2010093077A | 2010-04-22 |
Foreign References:
| WO2011096287A1 | 2011-08-11 | |||
| WO2010035614A1 | 2010-04-01 |
Attorney, Agent or Firm:
Patent business corporation Tajime international patent firm