ADHESIVE COMPOSITION, ADHESIVE LAYER AND ADHESIVE SHEET

Provided are: an adhesive composition that is capable of providing an adhesive layer in which titanium-based nanoparticles are stably dispersed, said adhesive layer having more enhanced mechanical characteristics, excellent refractive index and excellent adhesive force; and an adhesive sheet or the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NAKANO FUMIKO, TANAKA AKIKO, MOROISHI YUTAKA
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Provided are: an adhesive composition that is capable of providing an adhesive layer in which titanium-based nanoparticles are stably dispersed, said adhesive layer having more enhanced mechanical characteristics, excellent refractive index and excellent adhesive force; and an adhesive sheet or the like which uses the adhesive composition. An adhesive composition is prepared so as to contain: a (meth)acryl-based polymer that contains, as a monomer component, 50% by weight or more of a (meth)acrylate represented by the formula CH2=C(R1)COOR2 (wherein R1 represents hydrogen or a methyl group, and R2 represents a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms), has a weight average molecular weight of from 500,000 to 3,000,000 as determined by gel permeation chromatography, and does not substantially contain an acid component; an aromatic polymer that has a weight average molecular weight of from 200 to 900 as determined by gel permeation chromatography in an amount of 120-400 parts by weight per 100 parts by weight of the (meth)acrylic polymer; and titanium-based nanoparticles that has an average particle size of 5 to 100 nm in an amount of 150 to 600 parts by weight per 100 parts by weight of the (meth)acrylic polymer.