Title:
粘着シートおよび表示体
Document Type and Number:
Japanese Patent JP6525726
Kind Code:
B2
Abstract:
Provided are an adhesive sheet having excellent step traceability under the conditions of high temperature and high humidity and having excellent reworkability, and a display. The adhesive sheet (1) has one constituent member of a display at least having a step on the surface of an adhering side, and a pressure-sensitive adhesive layer (11) for bonding another constituent member of a display. The pressure-sensitive adhesive layer (11) comprises a pressure-sensitive adhesive that is formed by cross-linking an adhesive composition containing (meth)acrylic acid ester copolymer (A), a cross-linking agent (B) and silicone oil (C). The (meth)acrylic acid ester copolymer (A) contains 7-40 wt% of hydroxyl group-containing monomers or contains 6-20 wt% of carboxyl group-containing monomers as monomer units constituting the copolymer. The gel fraction of the pressure-sensitive adhesive is 40-90% and the adhesive force of the adhesive sheet (1) to non-alkali glass is 15-26 N/25 mm.
Inventors:
Watanabe Asahihira
Takayuki Arai
Satoru Satoru
Takayuki Arai
Satoru Satoru
Application Number:
JP2015103745A
Publication Date:
June 05, 2019
Filing Date:
May 21, 2015
Export Citation:
Assignee:
LINTEC CORPORATION
International Classes:
C09J7/10; B32B27/00; B32B27/30; C09J7/38; C09J11/08; C09J133/06; G02F1/1333; G09F9/00
Domestic Patent References:
| JP2013127012A | ||||
| JP2012087240A | ||||
| JP7331210A | ||||
| JP2013064075A | ||||
| JP6374485B2 |
Foreign References:
| WO2014171075A1 |
Attorney, Agent or Firm:
Yuji Hayakawa
Keisuke Murasame
Keisuke Murasame