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    • 52. 发明授权
    • (Meth)acrylic polymer particle, method for producing the same, plastisol composition made from the polymer particle, and article made from the plastisol composition
    • (甲基)丙烯酸聚合物颗粒,其制备方法,由聚合物颗粒制成的增塑溶胶组合物和由增塑溶胶组合物制成的制品
    • US08039541B2
    • 2011-10-18
    • US12524255
    • 2008-01-23
    • Satoshi Mae
    • Satoshi Mae
    • C08L33/00C08L33/06
    • C08F265/04C08F265/06C08F285/00C08K5/0016C08L51/003C08L2666/02C09D133/10C09D151/003C09J133/10C09J151/003C09K3/10C09K2200/0625C08F220/18
    • Disclosed are an industrially useful (meth)acrylic polymer particle for use in a plastisol which is excellent in storage stability, particularly under circumstance at 40° C. or above, so that it can suppress gelation and maintain a sol state during storage and which can give a shaped article excellent in flexibility and chipping resistance; a method for producing the (meth)acrylic polymer particle; and a plastisol composition made from the (meth)acrylic polymer particle. Specifically disclosed is a method for producing a (meth)acrylic polymer particle, which comprises polymerizing a monomer or monomer mixture (B) to form a polymer (b) in the presence of a polymer (a) obtained by polymerization of a monomer or monomer mixture (A), wherein a glass transition temperature (Tg) of the polymer (a) as calculated from the FOX equation is 90° C. or above, a solubility parameter of the polymer (a) is 19.90 (J/cm3)1/2 or below, and a solubility parameter of the polymer (b) is 20.22 (J/cm3)1/2 or above.
    • 公开了一种用于增塑溶胶的工业上有用的(甲基)丙烯酸类聚合物颗粒,其储存稳定性优异,特别是在40℃以上的情况下,可以抑制凝胶化并保持溶液状态,并且可以 给出具有优异的柔韧性和耐崩裂性的成型制品; (甲基)丙烯酸系聚合物粒子的制造方法, 和由(甲基)丙烯酸聚合物颗粒制成的增塑溶胶组合物。 具体公开了一种(甲基)丙烯酸系聚合物粒子的制造方法,其特征在于,在单体或单体聚合得到的聚合物(a)的存在下,使单体或单体混合物(B)聚合形成聚合物(b) 混合物(A),其中根据FOX方程计算的聚合物(a)的玻璃化转变温度(Tg)为90℃以上,聚合物(a)的溶解度参数为19.90(J / cm 3)1 / 2以下,聚合物(b)的溶解度参数为20.22(J / cm 3)1/2以上。
    • 58. 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。