Title:
PRESSURE-SENSITIVE ADHESIVE
Document Type and Number:
Japanese Patent JP2017149899
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive that is excellent in redetachability (reworkability) when used in a pressure-sensitive adhesive film, and is difficult to generate floating or peeling from a substrate after exposed to a high temperature or high temperature and high humidity environment, and a pressure-sensitive adhesive film using the same.SOLUTION: A pressure-sensitive adhesive containing a polyurethane-urea resin (A) and a reactive compound (B) having a functional group that can react with a hydroxy group, in which the polyurethane-urea resin (A) is a resin that is constituted with polyol (a1) that does not have an aromatic ring, polyisocyanate (a2) that does not have an aromatic ring and an amine compound (a3) that does not have an aromatic ring as monomer units, has a substituent group of carbon number of 4 to 22 such as alkyl group or the like and a hydroxy group, does not have an aromatic ring, and has a weight average molecular weight of 40,000 to 500,000, and the reactive compound (B) is contained by 0.1 to 50 pts.wt. relative to 100 pts.wt. of the polyurethaneurea resin (A).SELECTED DRAWING: None
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Inventors:
KOIDE MASASHI
IRIE TAKASHI
IRIE TAKASHI
Application Number:
JP2016035802A
Publication Date:
August 31, 2017
Filing Date:
February 26, 2016
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD
International Classes:
C09J175/00; B32B17/10; B32B27/00; B32B27/40; C09J7/02; C09J11/06