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    • 6. 发明申请
    • ADHESIVE COMPOSITION, ADHESIVE LAYER AND ADHESIVE SHEET
    • 胶粘组合物,粘合层和粘合片
    • US20130143999A1
    • 2013-06-06
    • US13814696
    • 2011-08-09
    • Akiko TanakaYutaka MoroishiFumiko Nakano
    • Akiko TanakaYutaka MoroishiFumiko Nakano
    • C09J133/10
    • C09J133/10C08F220/18C08F2220/1825C08K7/00C08K9/06C08K2003/2237C08K2201/011C08L33/14C09J7/381C09J125/06C09J133/066C09J151/003C09J2203/318C09J2205/102C09J2425/00C09J2433/00C09J2451/00Y10T428/14Y10T428/28C08F220/20
    • 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.
    • 提供:能够提供其中钛基纳米粒子稳定分散的粘合剂层的粘合剂组合物,所述粘合剂层具有更强的机械特性,优异的折射率和优异的粘合力; 以及使用该粘合剂组合物的粘合片等。 制备粘合剂组合物以包含:(甲基)丙烯酸基聚合物,其包含作为单体成分的50重量%以上由式CH 2 = C(R 1)COOR 2表示的(甲基)丙烯酸酯 其中R1表示氢或甲基,R2表示取代或未取代的碳原子数为1〜20的烷基),通过凝胶渗透色谱法测定的重均分子量为500,000〜3,000,000,基本上不含有 酸组分; 通过凝胶渗透色谱测定的重均分子量为200-900的芳族聚合物,每100重量份的(甲基)丙烯酸聚合物的量为120-400重量份; 和相对于(甲基)丙烯酸系聚合物100重量份,平均粒径为5〜100nm的钛系纳米粒子为150〜600重量份。