Title:
ADHESIVE AGENT COMPOSITION AND PROTECTIVE TAPE
Document Type and Number:
Japanese Patent JP2021147452
Kind Code:
A
Abstract:
To provide an adhesive agent composition capable of forming an adhesive agent layer that exhibits high adhesion to an adherend before UV irradiation, can be readily peeled from the adherend after UV irradiation, and hardly generates adhesive deposit to the adherend when peeling.SOLUTION: An adhesive agent composition comprises: 100 pts.mass of (meth)acrylic copolymer containing 12 to 80 mass% of a constituent unit derived from an alkyl group-containing (meth)acrylic acid alkyl ester monomer a having 8 to 24 carbon atoms and a constituent unit derived from a (meth)acrylic acid alkyl ester monomer b including a straight chain alkyl group having 4 to 7 carbons and having Tg of lower than 0°C as a single polymer, and having the content of a constituent unit derived from a monomer c (excluding monomer a) having Tg of 0°C or higher as a single polymer of 0 mass%, or over 0 mass% to 10 mass% or smaller; 25 to 95 pts.mass of a trifunctional or higher (meth)acrylate compound; and 0.1 to 10 pts.mass of a photopolymerization initiator, in which (content of the trifunctional or higher (meth)acrylate compound)/(content of the photopolymerization initiator) is 7 to 350.SELECTED DRAWING: None
Inventors:
MIYOSHI AKIRA
TAKEGUCHI MINATO
KANO HAJIME
TAKEGUCHI MINATO
KANO HAJIME
Application Number:
JP2020047041A
Publication Date:
September 27, 2021
Filing Date:
March 17, 2020
Export Citation:
Assignee:
NIPPON CARBIDE KOGYO KK
International Classes:
C09J133/04; C09J7/38; C09J11/06
Domestic Patent References:
| JP2003201451A | 2003-07-18 | |||
| JP2008085303A | 2008-04-10 | |||
| JPH05214298A | 1993-08-24 | |||
| JP2005012177A | 2005-01-13 |
Foreign References:
| WO2017195711A1 | 2017-11-16 |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office