Title:
表面保護フィルム
Document Type and Number:
Japanese Patent JP6725557
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a surface protective film excellent in balance of adhesion force in a low peel rate and a high peel rate, and further excellent in durability performance and rework performance.SOLUTION: A surface protective film consist of an acrylic polymer of a copolymer by copolymerizing (A) at least one kind of (meth)acrylic acid ester monomer having a C4 to C10 alkyl group of total 100 pts.wt., (B) at least one kind of a copolymerizable monomer having a hydroxyl group of total 0.1 to 8.0 pts.wt., (C) at least one kind of copolymerizable monomer containing a carboxyl group of total 0.35 to 1.0 pts.wt., in which a crosslinking agent is (D) tri- or higher functional isocyanate compound, contains at least one or more kinds selected from (D-1) first aliphatic isocyanate compounds and at least one or more kinds selected from (D-2) second aromatic isocyanate compounds, and a gel fraction of an adhesive layer is 95 to 100%.SELECTED DRAWING: None
Inventors:
Takeshi Nagakura
Ryusuke Shimaguchi
Ryo Hasegawa
Ryusuke Shimaguchi
Ryo Hasegawa
Application Number:
JP2018023381A
Publication Date:
July 22, 2020
Filing Date:
February 13, 2018
Export Citation:
Assignee:
Fujimori Industry Co., Ltd.
International Classes:
C09J7/38; C09J11/06; C09J133/02; C09J133/06; C09J133/14; C09J175/04
Domestic Patent References:
| JP2005023143A | ||||
| JP7165926A | ||||
| JP2009019172A | ||||
| JP2010037431A | ||||
| JP2010222565A |
Attorney, Agent or Firm:
Field Saki Satoshi
Kazunori Onami
Tomoyuki Teihiro
Kazunori Onami
Tomoyuki Teihiro