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    • 5. 发明专利
    • Solvent-borne adhesive composition for optical member, adhesive layer, and optical member with adhesive
    • 用于光学部件,胶粘剂层和粘合剂的光学部件的溶剂 - 硼酸粘合剂组合物
    • JP2011057794A
    • 2011-03-24
    • JP2009207294
    • 2009-09-08
    • Nitto Denko Corp日東電工株式会社
    • MOROISHI YUTAKANAKANO FUMIKOMATSUURA AIMITOYAMA YUSUKESATAKE MASAYUKI
    • C09J133/04C09J7/02C09J11/00C09J11/06C09J133/14G02B5/30
    • PROBLEM TO BE SOLVED: To provide an adhesive composition for optical members, which can form an adhesive layer satisfying reworkability in which the adhesive layer can easily be peeled off members such as optical members, and processability or durability in which after the adhesive layer is formed on an optical member, the optical member can be processed without causing troubles such as fouling, floating and peeling-off of the adhesive layer; and to provide an adhesive-type optical member and the like using the same.
      SOLUTION: The solvent-borne adhesive composition for optical members is prepared which comprises an acrylic polymer obtained by copolymerizing a ≥50 wt.% n-butyl acrylate, a 0.1-2 wt.% hydroxyl group-containing monomer and 0-49.8 wt.% other monomers, as monomer components, and having a weight-average molecular weight by gel permeation chromatography of ≥500,000 and ≤1,000,000; and with respect to 100 pts.wt. of the acrylic polymer, a 0.05-2 pts.wt. radical generator, a 0.05-2 pts.wt. isocyanate crosslinking agent, and a 0.01-1 pt.wt. silane coupling agent, wherein the composition has a ≥25 wt.% solid content, and a ≤75 wt.% solvent, and a viscosity at 23°C by a B-type viscometer at 100 rpm of ≤8 Pa s.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种光学部件用粘合剂组合物,其可以形成满足可再粘合层的粘合剂层,其中粘合剂层可以容易地从诸如光学部件的部件剥离,以及在粘合剂之后的加工性或耐久性 在光学构件上形成层,可以处理光学构件而不会引起粘合剂层的结垢,漂浮和剥离等问题; 并提供使用其的粘合剂型光学部件等。 解决方案:制备用于光学部件的溶剂型粘合剂组合物,其包含丙烯酸类聚合物,其通过将≥50重量%的丙烯酸正丁酯,0.1-2重量%的含羟基的单体和0〜 49.8重量%的其它单体作为单体组分,凝胶渗透色谱法的重均分子量≥500,000和≤1,000,000; 相对于100 pts.wt. 的丙烯酸聚合物,0.05-2重量份 自由基发生器,0.05-2重量 异氰酸酯交联剂,和0.01-1重量份 硅烷偶联剂,其中组合物的固体含量为≥25重量%,溶剂为≤75重量%,B型粘度计在100℃下的粘度为≤8Pa·s。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Adhesive composition for optical member, adhesive layer for optical member, adhering type optical member and image-displaying device
    • 用于光学部件的胶粘组合物,用于光学部件的粘合层,附着型光学部件和图像显示装置
    • JP2010121009A
    • 2010-06-03
    • JP2008294741
    • 2008-11-18
    • Nitto Denko Corp日東電工株式会社
    • MOROISHI YUTAKANAKANO FUMIKOMATSUURA AIMIYANO KOHEIINOUE SHINICHI
    • C09J133/04C09J11/06G02F1/1335
    • PROBLEM TO BE SOLVED: To provide an adhesive composition for an optical member, capable of inhibiting circumferential unevenness, and being reused without giving damages or soil to liquid crystal cells, and excellent in durability and also stress relaxation property. SOLUTION: This adhesive composition for the optical member is provided by containing (A) 100 pts.wt. acrylic polymer containing ≥50 wt.% alkyl (meth)acrylate having a ≥4C alkyl as a monomer unit and having ≥500,000 weight-average molecular weight, (B) 10 to 100 pts.wt. acrylic polymer containing ≥30 wt.% monomer capable of forming a homopolymer showing a positive birefringence as a monomer unit, having 2,000 to 100,000 weight-average molecular weight and showing the positive birefringence, 0.01 to 1 pt.wt. silane-coupling agent and a crosslinking agent. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够抑制周向不均匀性并在不给液晶单元造成损害或污染的情况下重复使用的光学部件用粘合剂组合物,并且耐久性以及应力松弛性优异。

      解决方案:该光学部件用粘合剂组合物通过含有(A)100重量份 含有≥50重量%具有≥4C烷基的(甲基)丙烯酸烷基酯作为单体单元并具有≥500,000重均分子量的丙烯酸聚合物,(B)10至100重量份。 含有≥30重量%的能够形成具有正双折射的均聚物作为单体单元的具有2,000至100,000重均分子量并显示正双折射的单体的丙烯酸聚合物为0.01至1重量ppm。 硅烷偶联剂和交联剂。 版权所有(C)2010,JPO&INPIT

    • 8. 发明专利
    • Self-adhesive composition for optical member, self-adhesive type optical member, and image display device
    • 用于光学部件的自粘合组合物,自粘型光学部件和图像显示装置
    • JP2010007044A
    • 2010-01-14
    • JP2009026290
    • 2009-02-06
    • Nitto Denko Corp日東電工株式会社
    • NAKANO FUMIKOMOROISHI YUTAKAMATSUURA AIMIHOSOKAWA TOSHITSUGUTOYAMA YUSUKEINOUE SHINICHI
    • C09J133/04C09J7/02C09J11/06C09J133/02C09J133/14C09J175/04C09J183/06G02F1/1335
    • PROBLEM TO BE SOLVED: To provide a self-adhesive composition for an optical member for forming a self-adhesive layer satisfying reworking properties allowing easy peeling from a member such as an optical member, processability allowing processing without causing any defect such as dirt, separation, and peeling after forming the self-adhesive layer on the optical member, and durability, and to provide a self-adhesive optical member and the like using the self-adhesive composition. SOLUTION: The self-adhesive composition for an optical member comprises a (meth)acrylic polymer having, as monomer units, an alkyl(meth)acrylate having a ≥4C alkyl group of 50 wt.% or more and a hydroxy group-containing monomer having a ≥4C alkyl group and at least one hydroxy group of 0.05-2 wt.%, and weight average molecular weight by the gel permeation chromatography is 500,000 or more. As crosslinking agents, the self-adhesive composition for an optical member comprises 0.01-2 pts.wt. of an isocyanate crosslinking agent and 0.01-5 pts.wt. of a silicone alkoxy oligomer based on 100 pts.wt. of the (meth)acrylic polymer. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种用于形成自粘层的光学部件的自粘合组合物,其满足能够容易地从诸如光学部件的部件剥离的修复性能,能够进行加工而不引起任何缺陷,例如 在光学构件上形成自粘层之后的污物,分离和剥离以及耐久性,并且使用自粘合组合物提供自粘光学构件等。 解决方案:用于光学部件的自粘合组合物包括具有作为单体单元的具有50重量%以上的≥4C烷基的(甲基)丙烯酸烷基酯和羟基的(甲基)丙烯酸类聚合物 含有≥4C烷基和至少一个羟基的0.05-2重量%的单体,通过凝胶渗透色谱法的重均分子量为500,000以上。 作为交联剂,用于光学部件的自粘组合物包含0.01-2重量份 的异氰酸酯交联剂和0.01-5重量份 的基于100重量份的硅氧烷烷基低聚物 的(甲基)丙烯酸聚合物。 版权所有(C)2010,JPO&INPIT