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    • 90. 发明申请
    • POLYOLEFIN GRAFT COPOLYMER AND ADHESIVE COMPOSITION
    • 聚烯烃共聚物和粘合剂组合物
    • US20110015338A1
    • 2011-01-20
    • US12922251
    • 2009-03-12
    • Takenori FujimuraRyo AburataniShuji MachidaShinichi Nakamura
    • Takenori FujimuraRyo AburataniShuji MachidaShinichi Nakamura
    • C08L51/06C08G63/91
    • C08L51/003C08F4/65908C08F4/65912C08F110/06C08F255/04C08L51/06C08L2666/02C09J151/003C09J151/06C08F4/65927C08F222/06C08F220/18C08F230/08C08F2500/15C08F2500/17C08F2500/02
    • A graft copolymer is provided that is useful as an adhesive composition that is excellent in adhesion strength between polyolefins and between a polyolefin and another member (for example, a metal, a resin, and an inorganic material, such as glass), is excellent in flowability at a low temperature and in melting property in a low temperature range, and is excellent in heat resistance after adhesion, i.e., a graft copolymer satisfying the following items (a) to (e):the graft copolymer having:(a) a main chain that is derived from one kind or two or more kinds of monomers selected from (I) acrylic acid and a derivative thereof, (II) methacrylic acid and a derivative thereof, (III) a vinyl ester and a derivative thereof, (IV) styrene and a derivative thereof and (V) a vinyl group-containing silane compound, at least one kind of the a monomer having a crosslinkable functional group,(b) a side chain that is derived from a reactive polyolefin having a meso pentad fraction (mmmm) of from 30 to 80% by mol and having an end unsaturated group in an amount of from 0.5 to 1.0 group per one molecule, the reactive polyolefin being a homopolymer of one kind of an α-olefin having from 3 to 28 carbon atoms, a copolymer of two or more kinds of α-olefins having from 3 to 28 carbon atoms, or a copolymer of 50% by mass or more of at least one of an α-olefin having from 3 to 28 carbon atoms and 50% by mass or less of ethylene,(c) a graft ratio of from 1 to 150% by mass,(d) a weight average molecular weight of from 500 to 400,000 measured by GPC, and(e) a molecular weight distribution (Mw/Mn) of from 1.5 to 4.
    • 提供了可用作聚烯烃之间和聚烯烃与另一部件(例如金属,树脂和无机材料如玻璃)之间的粘合强度优异的粘合剂组合物的接枝共聚物,其具有优异的 在低温下的流动性和低温范围的熔融性,粘合后的耐热性优异,即满足以下(a)〜(e)的接枝共聚物:接枝共聚物具有:(a) 衍生自选自(I)丙烯酸及其衍生物的一种或两种以上的单体的主链,(II)甲基丙烯酸及其衍生物,(III)乙烯基酯及其衍生物(IV )苯乙烯及其衍生物和(V)含乙烯基的硅烷化合物,至少一种具有交联性官能团的单体,(b)衍生自具有内消旋五官能度的反应性聚烯烃的侧链 (mmmm)从30 至80摩尔%,并且每分子具有0.5至1.0个基团的末端不饱和基团,反应性聚烯烃是一种具有3至28个碳原子的α-烯烃的均聚物,两个共聚物 或更多种具有3至28个碳原子的α-烯烃,或50质量%以上的碳原子数为3〜28的α-烯烃和50质量%以下的乙烯中的至少一种的共聚物 ,(c)1〜150质量%的接枝率,(d)通过GPC测定的重均分子量为500〜400,000,(e)分子量分布(Mw / Mn)为1.5〜 4。