Title:
PRESSURE-SENSITIVE ADHESIVE AND PRESSURE-SENSITIVE ADHESIVE TAPE
Document Type and Number:
WIPO Patent Application WO/2016/152094
Kind Code:
A1
Abstract:
[Problem] To provide a removable pressure-sensitive adhesive which is suitable for use as a pressure-sensitive adhesive sheet for removable application to display devices having a curved shape, in particular, for protection of, for example, curved glasses and films with a hard coating, or for use as a pressure-sensitive adhesive sheet for temporary fixing in processes, and which has excellent wetting properties.
[Solution] A pressure-sensitive adhesive comprising: a urethane prepolymer (A) obtained by reacting a polyol (a) with a polyisocyanate (b) under such conditions that the molar ratio of NCO/OH is 0.5-0.9 and having a molecular-weight dispersity ratio [(weight-average molecular weight (Mw))/(number-average molecular weight (Mn)); hereinafter referred to also as Mw/Mn] of 4-12; a polyfunctional polyol (B), and an isocyanate hardener (C).
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| WO/2008/110602 | POLYISOCYANATE-BASED ADHESIVE |
| JPH1060388 | PRESSURE-SENSITIVE ADHESIVE SHEET |
| JP2578133 | [Title of Invention] Polyurethane Adhesive |
Inventors:
TANABE SHINGO (JP)
FUKUTA KATSUNORI (JP)
ISHIZU CHIYO (JP)
SAITO SHUHEI (JP)
FUKUTA KATSUNORI (JP)
ISHIZU CHIYO (JP)
SAITO SHUHEI (JP)
Application Number:
PCT/JP2016/001483
Publication Date:
September 29, 2016
Filing Date:
March 15, 2016
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
TOYOCHEM CO LTD (JP)
TOYOCHEM CO LTD (JP)
International Classes:
C09J175/04; C08G18/10; C09J7/20; C09J7/30; C09J11/06
Domestic Patent References:
| WO2012144329A1 | 2012-10-26 |
Foreign References:
| JP2013060521A | 2013-04-04 | |||
| JP2011190420A | 2011-09-29 | |||
| JP2014028876A | 2014-02-13 |
Attorney, Agent or Firm:
HAGIHARA, MAKOTO (JP)
Makoto Hagiwara (JP)
Makoto Hagiwara (JP)
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