Title:
ADHESIVE TAPE
Document Type and Number:
WIPO Patent Application WO/2021/065515
Kind Code:
A1
Abstract:
An objective of the present invention is to provide adhesive tape possessing both the adhesive strength to be capable of reliably bonding tightly to various materials, and easy-peel properties that inhibit adhesive residue and enable easy removal of the tape. The present invention is adhesive tape comprising a backing, an adhesive layer 1, and an adhesive layer 2, wherein: the adhesive layer 1 is disposed between the backing and the adhesive layer 2; the adhesive layer 2 contains an energy-curable adhesive (meth)acrylic polymer (A), a non-energy-curable adhesive (meth)acrylic polymer (B), a photopolymerization initiator, and a cross-linking agent; the energy-curable adhesive (meth)acrylic polymer (A) comprises at least one type of functional group, selected from a hydroxy group, carboxyl group, and amino group, on a side chain; the non-energy-curable adhesive (meth)acrylic polymer (B) comprises a silicon-containing substituent and at least one type of functional group, selected from a hydroxy group, carboxyl group, and amino group, on a side chain; and the adhesive layer 2 contains 0.1–20 parts by weight of the non-energy-curable adhesive (meth)acrylic polymer (B) per 100 parts by weight of the energy-curable adhesive (meth)acrylic polymer (A).
Inventors:
SHIGETOMI KIYOE (JP)
TAKAHASHI TOSHIO (JP)
NEMOTO KAITO (JP)
TAKAHASHI TOSHIO (JP)
NEMOTO KAITO (JP)
Application Number:
PCT/JP2020/035101
Publication Date:
April 08, 2021
Filing Date:
September 16, 2020
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C09J11/06; C09J7/30; C09J7/38; C09J133/02; C09J133/06; C09J133/14
Foreign References:
| JP2018162452A | 2018-10-18 | |||
| JP2017509768A | 2017-04-06 | |||
| JP2014037502A | 2014-02-27 | |||
| JP2012039053A | 2012-02-23 | |||
| JP2019070094A | 2019-05-09 | |||
| JP2015128126A | 2015-07-09 | |||
| JP2014019790A | 2014-02-03 |
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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