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    • 6. 发明授权
    • Adhesives comprising epoxy-acid crosslinked groups and methods
    • 包含环氧 - 酸交联基团的粘合剂和方法
    • US09434866B2
    • 2016-09-06
    • US14194840
    • 2014-03-03
    • 3M INNOVATIVE PROPERTIES COMPANY
    • Arlin L. WeikelBabu N. GaddamLarry R. KrepskiWayne S. MahoneyJason D. Clapper
    • C09J163/00C09J133/06C08L33/06C09J133/08C09J7/02
    • C09J133/08C08L63/00C08L2312/00C09J7/385C09J133/068Y10T428/2809
    • Adhesives compositions and methods of preparing adhesive compositions are described. The methods generally comprise a) providing a syrup composition comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic copolymer; and b) radiation curing the syrup composition in the absence of an ionic photoacid generator. In one embodiment, the solute (meth)acrylic copolymer as provided or during curing comprises repeat units derived from at least one alkyl(meth)acrylate monomer, at least one ethylenically unsaturated monomer comprising an acid-functional group; and at least one (meth)acryloyl monomer comprising an epoxy-functional group; and the acid-functional groups crosslink with the epoxy-functional groups. In another embodiment, the solute (meth)acrylic copolymer comprising repeat units derived from at least one alkyl(meth)acrylate monomer and at least one ethylenically unsaturated monomer comprising an acid-functional group; and an epoxy resin, having on average greater than one polymerizable epoxy group per molecule, crosslinks the acid-functional groups.
    • 描述了制备粘合剂组合物的粘合剂组合物和方法。 方法通常包括:a)提供糖浆组合物,其包含i)可自由基聚合的溶剂单体; 和ii)溶质(甲基)丙烯酸共聚物; 和b)在不存在离子型光酸产生剂的情况下辐射固化糖浆组合物。 在一个实施方案中,所提供的或在固化期间的溶质(甲基)丙烯酸共聚物包含衍生自至少一种(甲基)丙烯酸烷基酯单体的重复单元,至少一种包含酸官能团的烯属不饱和单体; 和至少一种包含环氧官能团的(甲基)丙烯酰基单体; 酸官能团与环氧官能团交联。 在另一个实施方案中,包含衍生自至少一种(甲基)丙烯酸烷基酯单体和至少一种包含酸官能团的烯属不饱和单体的重复单元的溶质(甲基)丙烯酸共聚物; 和每分子平均具有大于一个可聚合环氧基团的环氧树脂交联酸官能团。