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Patent Searching and Data


Title:
ADHESIVE FILM AND ELECTRONIC DEVICE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/188542
Kind Code:
A1
Abstract:
This adhesive film (50) is provided with a substrate layer (10), an adhesive resin layer (A) which is provided on a first side (10A) of the substrate layer (10), and an adhesive resin layer (B) which is provided on the second side (10B) of the substrate layer (10) and which has an adhesive force that decreases with external stimulation. The integral value (F2.5) of the tack force of the adhesive resin layer (B) measured with method 1 described below at a test speed of 2.5 mm/m and a test temperature of 130°C is greater than or equal to 1.0 gf/s, and the integral value (F30) of the tack force of the adhesive resin layer (B) at a test speed of 30 mm/m and a test temperature of 130°C is greater than or equal to 7.0 gf/s. (Method 1) A tack tester is used to press a probe for 60 seconds onto the adhesive resin layer (B) under the conditions of a probe load of 100 gf and a probe pressing speed of 120 mm/m, thereafter the tack strength (gf) is measured at a test temperature of 130°C at test speeds 2.5 mm/m and 30 mm/m; with the measurement time on the horizontal axis and the tack strength (gf) on the vertical axis, the integral values are computed from the point when the tack strength begins to rise from 0 until the point when the tack force returns to 0, and are set as F2.5 and F30.

Inventors:
IGARASHI KOUJI (DE)
KINOSHITA JIN (JP)
KURIHARA HIROYOSHI (JP)
MIURA TORU (JP)
Application Number:
JP2019/011334
Publication Date:
October 03, 2019
Filing Date:
March 19, 2019
Export Citation:
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Assignee:
MITSUI CHEMICALS TOHCELLO INC (JP)
International Classes:
C09J7/38; C09J11/00; C09J133/04; C09J201/00; H01L21/56
Domestic Patent References:
WO2013011850A12013-01-24
Foreign References:
JP2012062373A2012-03-29
JP6294541B12018-03-14
JPH05279640A1993-10-26
JP2005503469A2005-02-03
JP2013104052A2013-05-30
JPH06306337A1994-11-01
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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