Title:
A urethane system adhesive and the surface protection film using it
Document Type and Number:
Japanese Patent JP6247936
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a urethane adhesive which can sufficiently inhibit whitening of an adherend and has excellent reworkability, provide a surface protection film with such a urethane adhesive used as an adhesive layer, wherein the surface protection film can sufficiently inhibit whitening of the adherend and has excellent reworkability, and provide an optical member and an electronic member with such a surface protection film stuck thereto.SOLUTION: A urethane adhesive of the invention is a urethane adhesive that comprises a polyurethane resin. The polyurethane resin is a polyurethane resin obtained by curing a composition comprising a polyol (A), a polyfunctional isocyanate compound (B) and a catalyst (C). The catalyst (C) is a catalyst that satisfies a molar ratio (Sn catalyst/Fe catalyst)≤0.3.
Inventors:
Shogo Sasaki
Ryo Iseki
Masahiko Ando
Ryo Iseki
Masahiko Ando
Application Number:
JP2014003020A
Publication Date:
December 13, 2017
Filing Date:
January 10, 2014
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
C09J175/04; C09J7/02; C09J11/02; C09J175/08
Domestic Patent References:
| JP2005154492A | ||||
| JP2000256630A | ||||
| JP2000256638A | ||||
| JP2000073040A | ||||
| JP2000328034A | ||||
| JP2013163819A | ||||
| JP2013147631A | ||||
| JP2011190420A |
Attorney, Agent or Firm:
Katsuto Momii
Yoshida Masayasu
Yoshida Masayasu