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    • 121. 发明授权
    • Cationically electrodepositable finely divided gelled polymer and
process for producing same
    • 阳离子电沉积的细分胶凝聚合物及其制备方法
    • US5475057A
    • 1995-12-12
    • US561501
    • 1990-08-01
    • Kenji YamamotoHaruo NagaokaTeiji KatayamaTadayoshi HirakiKiyoshi Kato
    • Kenji YamamotoHaruo NagaokaTeiji KatayamaTadayoshi HirakiKiyoshi Kato
    • C08F275/00C09D5/44C08F8/30C08F283/12
    • C09D5/4492C08F275/00Y10S525/902
    • A cationically electrodepositable finely divided gelled polymer obtained by, in the first step, emulsion polymerizing (A) a monomer component comprising(a) a polymerizable unsaturated vinylsilane monomer containing a vinylic double bond and a hydrolyzable alkoxysilane group,(b) a polymerizable monomer having at least two radically polymerizable unsaturated groups in a molecule,(c) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group, and(d) another polymerizable unsaturated monomer using a cationically reactive emulsifying agent having an allyl group in a molecule; and in the second step, emulsion polymerizing a monomer component (B) comprising(e) a blocked monoisocyanate or polyisocyanate in which at least one isocyanate group in a molecule is blocked with a radically polymerizable monohydroxy compound,(f) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group, and(g) another polymerizable unsaturated monomer in the presence of an aqueous finely divided gelled polymer obtained in the first step, said polymer having a core-sheath structure in which the polymerized product of the monomer component (A) is the core and the polymerized product of the monomer component (B) is the sheath, and process for producing same.
    • 一种阳离子可电沉积的细碎胶凝聚合物,其通过在第一步骤中乳液聚合(A)单体组分,其包含(a)含有乙烯基双键的可聚合不饱和乙烯基硅烷单体和可水解烷氧基硅烷基团,(b)可聚合单体,其具有 分子中至少有两个可自由基聚合的不饱和基团,(c)具有乙烯基双键和羟基的可聚合不饱和单体,和(d)使用分子中具有烯丙基的阳离子反应性乳化剂的另一种可聚合不饱和单体; 并且在第二步骤中,使包含(e)分子内至少一个异氰酸酯基团被自由基聚合性单羟基化合物封闭的封端单异氰酸酯或多异氰酸酯的单体成分(B)乳化聚合,(f)具有 乙烯基双键和羟基,和(g)在第一步骤中获得的水分细分胶凝聚合物存在下的另一种可聚合不饱和单体,所述聚合物具有芯鞘结构,其中单体成分 (A)是核心,单体组分(B)的聚合产物是鞘,以及其制备方法。
    • 126. 发明专利
    • Acoustic attenuation material for liquid application
    • 用于液体应用的声学衰减材料
    • JP2014148681A
    • 2014-08-21
    • JP2014076512
    • 2014-04-02
    • Rohm & Haas Coローム アンド ハース カンパニーRohm And Haas Company
    • HERMES ANN RWILLIAMS DREW ESWARTZ ANDREW J
    • C08L43/02B60R13/08C08F30/02C09D5/02C09D7/12C09D143/02
    • C08F275/00B60R13/08C08F220/14C08F220/18C08F230/02C09D143/02
    • PROBLEM TO BE SOLVED: To provide an acoustic attenuation composition for an acoustic attenuation having improved composite loss coefficient characteristic compared to conventional aqueous acoustic attenuation materials and especially useful for automobile uses.SOLUTION: A composition contains (a) an aqueous polymer binder containing 0.03 to 3 wt.% of phosphorus existing as a copolymerized pendant phosphorus-based acid group and having calculated Tg of -50 to 80°C, (b) a filler having a ratio to the binder thereof of 1:1 to 10:1 on dry weight basis, and (c) a thickener with enough amount to obtain a composition capable of being shear viscosity reduced and having a Brookfield viscosity of 200,000 to 10,000,000 cP not under a shearing condition, and having a volume solid content of 50 to 75%. The binder contains 2 component, a first component having a glass transition temperature of -50 to 60°C and a second component having it of -30 to 80°C, and the difference of the glass transition temperatures between 2 components is at least 20°C.
    • 要解决的问题:提供与传统的水声衰减材料相比具有改进的复合损耗系数特性的声衰减的声衰减组合物,并且特别适用于汽车用途。解决方案:组合物包含(a)含有0.03〜 作为共聚侧基磷酸基团存在的3重量%的磷,计算Tg为-50〜80℃,(b)与干燥时的粘合剂的比例为1:1〜10:1的填料 (c)具有足够量的增稠剂以获得能够在剪切条件下剪切粘度降低并且Brookfield粘度为200,000至10,000,000cP的组合物,并且体积固体含量为50至75%。 粘合剂含有2成分,第一成分的玻璃化转变温度为-50〜60℃,第二成分为-30〜80℃,2成分之间的玻璃化转变温度差为20以上 C。