OPTICAL PRESSURE-SENSITIVE ADHESIVE AGENT, AND OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive agent which can form a pressure-sensitive adhesive layer good in adherence to an adherend, not causing foams at a pasted interface, not causing lifting and exfoliation, and not generating light leakage phenomenon, even if being exposed f...

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Bibliographische Detailangaben
Hauptverfasser:	ABE TADASHI, KOJIMA NOBORU, HARUTA KAZUNARI, OZAKI MASAYA
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PAINTS PERFORMING OPERATIONS PHYSICS POLISHES TRANSPORTING USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive agent which can form a pressure-sensitive adhesive layer good in adherence to an adherend, not causing foams at a pasted interface, not causing lifting and exfoliation, and not generating light leakage phenomenon, even if being exposed for a long period to high-temperature and high-humidity and the like after being pasted to an adherend, and being excellent in processability.SOLUTION: An optical pressure-sensitive adhesive agent contains 100 parts by weight of an acrylic polymer and 5 to 50 parts by weight of an isocyanate-based curing agent, wherein the acrylic polymer is a copolymer of monomers containing 10 to 100 wt.% of a monomer (A) capable of forming a homopolymer having an SP value of 10 to 18 (cal/cm)in 100 wt.% of the total of the monomers; and the acrylic polymer has a hydroxyl value of 0.05 to 5 mgKOH/g.