Title:
ADHESIVE SHEET AND OPTICAL MEMBER
Document Type and Number:
Japanese Patent JP2015212362
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive sheet capable of preventing increase in an adhesive force with time in a high temperature environment (that is, having a preventing property against increase in adhesive force and adhesive force stability), having a low adhesive force during high-speed peeling, and having excellent removability, workability and shear strength.SOLUTION: The adhesive sheet has an adhesive layer formed from an adhesive composition on one surface or both surfaces of a support film. An adhesive force ratio (B/A) is less than 2, where A is an adhesive force of the adhesive sheet at a peeling speed of 30 m/min after an adhesive surface of the adhesive layer is stuck to a TAC surface at 23°C for 30 minutes, and B is an adhesive force of the adhesive sheet at a peeling speed of 30 m/min after the adhesive surface of the adhesive layer is stuck to a TAC surface at 70°C and for 1 week.
Inventors:
KATAOKA KENICHI
AMANO TATSUMI
AMANO TATSUMI
Application Number:
JP2015058371A
Publication Date:
November 26, 2015
Filing Date:
March 20, 2015
Export Citation:
Assignee:
NITTO DENKO CORP
International Classes:
C09J7/20; C09J133/14; C09J175/04; G02B5/30
Domestic Patent References:
| JP2005097451A | 2005-04-14 | |||
| JP2010037431A | 2010-02-18 | |||
| JP2000079662A | 2000-03-21 | |||
| JP2011241311A | 2011-12-01 | |||
| JP2010260992A | 2010-11-18 | |||
| JP2009019162A | 2009-01-29 | |||
| JP2008069202A | 2008-03-27 | |||
| JP2014111703A | 2014-06-19 | |||
| JP2008150544A | 2008-07-03 |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office