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    • 5. 发明公开
    • ADHESIVE RESIN COMPOSITION
    • 粘合剂树脂组合物
    • EP3075809A1
    • 2016-10-05
    • EP14865787.7
    • 2014-11-25
    • Mitsubishi Plastics, Inc.
    • NIIMI, KahoruINENAGA, MakotoNAKAMURA, JunichiKAWAI, Eri
    • C09J151/00C09J7/00C09J11/06
    • C09J151/003C08F220/06C08F290/046C08L2312/00C09J4/06C09J7/00C09J7/385C09J11/06C09J133/08C09J151/00C09J155/005C09J2203/318C08F220/10C08F2220/382
    • There is provided a new pressure-sensitive adhesive resin composition that can have adhesiveness to the extent of being peelable in a room temperature condition, has fluidity by hot-melting, and can finally be crosslinked to firmly bond adherends to each other. There is proposed a pressure-sensitive adhesive resin composition comprising 100 parts by mass of an acrylic copolymer (A), 0.5 to 20 parts by mass of a crosslinking agent (B), and 0.1 to 5 parts by mass of a photopolymerization initiator (C), wherein the acrylic copolymer (A) is a graft copolymer having a weight average molecular weight of 5.0 × 10 4 to 5.0 × 10 5 , contains as a trunk component of the graft copolymer a repeating unit derived from a (meth)acrylate, contains as a branch component of the graft copolymer a repeating unit derived from a macromonomer having a number average molecular weight of 5.0 × 10 2 or more and less than 6.0 × 10 3 , and contains the repeating unit derived from the macromonomer in the acrylic copolymer (A) in a proportion in a range of 0.1 to 3 mol%.
    • 提供一种新型的压敏粘合剂树脂组合物,其可以在室温条件下具有可剥离程度的粘合性,通过热熔融具有流动性,并且最终可以交联以使被粘物彼此牢固粘合。 提出了一种压敏粘合剂树脂组合物,其包含100质量份丙烯酸类共聚物(A),0.5至20质量份交联剂(B)和0.1至5质量份光聚合引发剂(C ),其中,所述丙烯酸类共聚物(A)为重均分子量为5.0×10 4〜5.0×10 5的接枝共聚物,所述接枝共聚物的主要成分为来自(甲基)丙烯酸酯的重复单元, 接枝共聚物的支链成分,来源于数均分子量为5.0×102以上且小于6.0×103的大分子单体的重复单元,在丙烯酸类共聚物(A)中含有来自大分子单体的重复单元 比例在0.1至3mol%的范围内。
    • 6. 发明公开
    • ADHESIVE COMPOSITION
    • 粘合剂组合物
    • EP3067400A1
    • 2016-09-14
    • EP14860131.3
    • 2014-10-20
    • Mitsubishi Plastics, Inc.
    • INENAGA, MakotoFUKUDA, Shinya
    • C09J123/08C09J7/02C09J11/06
    • C09J123/26C08J3/28C08J2323/26C09J123/0815G02B1/111
    • Provided is an adhesive composition which has cutting processability when it is fitted to the shape of an adherend part before pasting and processed, long-term storage stability at a normal temperature before pasting of the cut shape after processing, low temperature melting properties of not imparting damage to the adherend part when being pasted, and uneven step absorbability after pasting. Hence, an adhesive composition which contains a crosslinking agent and a photopolymerization initiator at from 1 to 50 parts by weight and from 0.3 to 3 parts by weight based on 100 parts by weight of an ethylene-α-olefin-based copolymer, respectively, and has a crystal melting peak by DSC of from 30 to 80°C is proposed.
    • 本发明提供一种粘贴剂组合物,其贴合加工前的被粘物部分的形状时具有切割加工性,加工后粘贴加工前的常温下的长期保存稳定性,未赋予低温熔融性 粘贴时对被粘物的损伤,粘贴后的阶梯吸收性不均匀。 因此,相对于100重量份的乙烯-α-烯烃系共聚物,含有交联剂和光聚合引发剂的粘合剂组合物分别为1〜50重量份和0.3〜3重量份, DSC的结晶熔融峰为30〜80℃。