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Patent Searching and Data


Title:
ADHESIVE TAPE
Document Type and Number:
WIPO Patent Application WO/2021/029261
Kind Code:
A1
Abstract:
[Problem] To provide an adhesive tape comprising a porous base material such that bleed-through can be curbed even if a water-based coating solution is used as the adhesive, while a decrease in sound absorption characteristics can be suppressed and a decrease in the adhesiveness between the porous base material and a primer layer can be suppressed. [Solution] The invention provides an adhesive tape comprising: a porous base material having a basis weight of 60 to 150 g/m2, a thickness of 200 μm or thicker, and a porosity of 35% by volume or greater; a resin layer provided on at least one surface of the porous base material; and an adhesive layer provided over the resin layer. The resin layer is formed from a resin composition (I) containing a tackifying resin.

Inventors:
KIMURA AKIYOSHI (JP)
TATE YOSUKE (JP)
YOSHIMURA DAISUKE (JP)
Application Number:
PCT/JP2020/029729
Publication Date:
February 18, 2021
Filing Date:
August 04, 2020
Export Citation:
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Assignee:
DENKA COMPANY LTD (JP)
International Classes:
B32B5/18; B32B27/00; B32B27/28; C09J7/26; C09J7/29; C09J7/38; C09J201/00
Domestic Patent References:
WO2013069784A12013-05-16
Foreign References:
JP2017031340A2017-02-09
JPH08302296A1996-11-19
JP2014240457A2014-12-25
JP2002188068A2002-07-05
JP2009040921A2009-02-26
JP2017019920A2017-01-26
Other References:
See also references of EP 4015212A4
Attorney, Agent or Firm:
SONODA & KOBAYASHI INTELLECTUAL PROPERTY LAW (JP)
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