Title:
ADHESIVE COMPOSITION FOR HEAT GENERATOR AND USE THEREOF
Document Type and Number:
Japanese Patent JP2021080352
Kind Code:
A
Abstract:
To provide an adhesive composition for heat generators having high adhesion strength between a planar heat generator and an adherend or constituent members of the planar heat generator and excellent durability under high temperature or high humidity and high temperature.SOLUTION: In an adhesive composition for heat generators containing a vinyl polymer (A) and an acrylic adhesive polymer (B) and used for the joining of a planar heat generator and an adhering material, the vinyl polymer (A) has a glass transition temperature of 30°C or larger to 200°C or lower, and Mn is 500 or larger and 10,000 or smaller, Mw of the acrylic adhesive polymer (B) is 550,000 or larger, and a content of vinyl polymer (A) is 0.5 to 60 pts.mass relative to 100 pts.mass of acrylic adhesive polymer (B), the glass transition temperature Tg1 of the adhesive composition is -80°C or higher and 10°C or lower, and the glass transition temperature Tg2 based on the composition of the surface portion obtained by X-ray photoelectron spectroscopy of the adhesive layer formed on a separator is set to be higher than Tg1 by 30°C or more.SELECTED DRAWING: None
Inventors:
HASHIMOTO YUSUKE
NAKAMURA KENICHI
TAKEYA NOBUYUKI
NAKAMURA KENICHI
TAKEYA NOBUYUKI
Application Number:
JP2019208142A
Publication Date:
May 27, 2021
Filing Date:
November 18, 2019
Export Citation:
Assignee:
TOAGOSEI CO LTD
International Classes:
C09J133/04; C09J7/38
Foreign References:
| WO2019150728A1 | 2019-08-08 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Kyoko Hino