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    • 3. 发明申请
    • Pressure-sensitive adhesive sheet
    • 压敏粘合片
    • US20070207312A1
    • 2007-09-06
    • US11712501
    • 2007-03-01
    • Mami IkeyaAkiko Takahashi
    • Mami IkeyaAkiko Takahashi
    • B32B7/12
    • C09J7/26C09J7/22C09J7/38C09J7/385C09J2433/00Y10T428/249983Y10T428/249985Y10T428/2891
    • The present invention relates to a pressure-sensitive adhesive sheet, which includes: a base material including a foamed substance; and a pressure-sensitive adhesive layer disposed on at least one surface of the base material, in which the pressure-sensitive adhesive layer is formed by a water-dispersible acrylic pressure-sensitive adhesive composition containing a water-dispersible acrylic copolymer (a) having a weight-average molecular weight of from 400,000 to 900,000, said copolymer containing a (meth)acrylic acid alkyl ester having 2 to 14 carbon atoms in the alkyl group thereof as a principal monomer component and a functional group-containing monomer as a monomer component; and a water-dispersible acrylic low-molecular weight component (b) having a weight-average molecular weight of from 5,000 to 250,000. According to the pressure-sensitive adhesive sheet, a pressure-sensitive adhesive layer is formed with an excellent adhesivity on a base material foamed by a foamed substance, without restriction in the method of forming the pressure-sensitive adhesive layer or in the type of a crosslinking agent.
    • 本发明涉及一种压敏粘合片,其包括:包含发泡物质的基材; 以及设置在所述基材的至少一个表面上的压敏粘合剂层,其中所述压敏粘合剂层由含有水分散性丙烯酸共聚物(a)的水分散性丙烯酸类压敏粘合剂组合物形成,所述水分散性丙烯酸类共聚物(a)具有 重均分子量为40万〜90万,所述共聚物含有作为主要单体成分的烷基中具有2〜14个碳原子的(甲基)丙烯酸烷基酯和作为单体成分的含官能团的单体 ; 以及重均分子量为5,000〜250,000的水分散性丙烯酸类低分子量成分(b)。 根据该粘合片,在由发泡体发泡的基材上形成粘合性优异的粘合剂层,在形成压敏粘合剂层的方法中没有限制, 交联剂。
    • 7. 发明授权
    • Aqueous pressure-sensitive adhesive composition and use thereof
    • 水性压敏粘合剂组合物及其用途
    • US07923503B2
    • 2011-04-12
    • US11833443
    • 2007-08-03
    • Akiko TakahashiMami Ikeya
    • Akiko TakahashiMami Ikeya
    • C08F2/16C08L11/02C08L33/00
    • C09J133/14C08K5/29C08L2312/00C08L2666/28
    • There provided a pressure-sensitive adhesive (PSA) composition constituting a PSA layer, which may exhibit a plurality of properties in a well-balanced manner, and a PSA sheet including the PSA layer. The composition is an aqueous PSA composition in which an acrylic polymer serves as a main component and the acrylic polymer is dispersed in water, and contains: A) acrylic polymer obtained by polymerizing a monomer raw material including alkyl(meth)acrylate as a main monomer, a first functional monomer having a first functional group to react with a hydrazino group, and a second functional monomer having a second functional group to react with a carbodiimide group; B) a hydrazine-based crosslinking agent; and C) a carbodiimide-based crosslinking agent.
    • 提供构成粘合剂层的压敏粘合剂(PSA)组合物,其可以以良好平衡的方式显示多种性能,以及包含PSA层的粘合片。 该组合物是丙烯酸类聚合物作为主要成分并且丙烯酸类聚合物分散在水中的含水粘合剂组合物,并且包含:A)通过聚合包含(甲基)丙烯酸烷基酯作为主要单体的单体原料而获得的丙烯酸类聚合物 具有与肼基反应的第一官能团的第一官能单体和具有与碳二亚胺基反应的第二官能团的第二官能单体; B)肼类交联剂; 和C)碳二亚胺基交联剂。