Title:
PRODUCTION METHOD FOR THERMALLY CONDUCTIVE PRESSURE-SENSITIVE ADHESIVE LAMINATED SHEET, THERMALLY CONDUCTIVE PRESSURE-SENSITIVE ADHESIVE LAMINATED SHEET, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/156254
Kind Code:
A1
Abstract:
A production method for a thermally conductive pressure-sensitive adhesive laminated sheet (F) comprising a thermally conductive pressure-sensitive adhesive layer and a base material layer, said production method including: a polymer gel-containing dispersion liquid preparation step in which a crosslinked body-containing polymer composition (A) containing a thermally-conductive filler (C1) and a (meth) acrylate ester polymer (A0) is immersed in a solvent and agitated, and a polymer gel-containing dispersion liquid is prepared; a filtration step in which the polymer gel-containing dispersion liquid is filtered using a mesh having prescribed mesh openings and a filtrate is obtained; a coating step in which the filtrate is coated on at least one surface of the base material layer at a prescribed thickness; and a solvent removal step in which the solvent in the filtrate upon the base material layer is removed and the thermally conductive pressure-sensitive adhesive layer is obtained. The production method for the thermally conductive pressure-sensitive adhesive laminated sheet (F) is characterized by: the prescribed mesh openings being no more than 1.3 times the prescribed thickness; and the gel fraction of a post-filtration crosslinked body-containing polymer composition (H), obtained by drying the filtrate obtained by supplying the crosslinked body-containing polymer composition (A) to the polymer gel-containing dispersion liquid preparation step and the filtration step, being at least 75 mass%.
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Inventors:
KITAGAWA HIROMI (JP)
KUMAMOTO TAKUROU (JP)
KUMAMOTO TAKUROU (JP)
Application Number:
PCT/JP2015/060753
Publication Date:
October 15, 2015
Filing Date:
April 06, 2015
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
B32B27/00; C09J7/02; B32B27/20; B32B27/30; C09J9/02; C09J11/04; C09J133/06
Foreign References:
| JP2010511738A | 2010-04-15 | |||
| JPH11195324A | 1999-07-21 | |||
| JP2005255866A | 2005-09-22 | |||
| JPH03156923A | 1991-07-04 | |||
| JP2012229305A | 2012-11-22 | |||
| JP2012197379A | 2012-10-18 | |||
| JP2012162690A | 2012-08-30 | |||
| JP2014028903A | 2014-02-13 |
Attorney, Agent or Firm:
YAMAMOTO, Noriaki et al. (JP)
Yamamoto 典輝 (JP)
Yamamoto 典輝 (JP)
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