Invention Grant
- Patent Title: Optical acrylic pressure-sensitive adhesive composition and optical acrylic pressure-sensitive adhesive tape
- Patent Title (中): 光学丙烯酸压敏粘合剂组合物和光学丙烯酸压敏胶带
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Application No.: US13352823Application Date: 2012-01-18
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Publication No.: US08623961B2Publication Date: 2014-01-07
- Inventor: Jun Akiyama , Masayuki Okamoto , Kiyoe Shigetomi , Masato Yamagata
- Applicant: Jun Akiyama , Masayuki Okamoto , Kiyoe Shigetomi , Masato Yamagata
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP2011-009232 20110119
- Main IPC: C08L33/02
- IPC: C08L33/02 ; C08L35/02 ; C08L39/00 ; C08L39/02

Abstract:
The present invention relates to an optical acrylic pressure-sensitive adhesive composition, containing: 100 parts by mass of an acrylic polymer (A) which contains a vinylic monomer having a nitrogen atom in a skeleton thereof as a monomer unit and does not substantially contain a monomer containing a carboxyl group; 1-70 parts by mass of a (meth)acrylic polymer (B) having a weight average molecular weight of 1,000 or greater and less than 30,000; and 1-50 parts by mass of a hydrogenated tackifying resin (C), and an optical acrylic pressure-sensitive adhesive tape including a pressure-sensitive adhesive layer containing the optical acrylic pressure-sensitive adhesive composition.
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