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    • 3. 发明授权
    • Sulfonic group-containing, maleic acid-based, water-soluble copolymer aqueous solution and powder obtained by drying the aqueous solution
    • 含有磺酸基的马来酸基水溶性共聚物水溶液和干燥水溶液得到的粉末
    • US09133422B2
    • 2015-09-15
    • US12863865
    • 2009-03-27
    • Takahiro TsumoriMasato Nakano
    • Takahiro TsumoriMasato Nakano
    • C11D7/26C11D7/34C11D7/54C11D3/20C11D3/34C11D3/39C11D3/37C08J3/14C08L33/00C08L35/00C11D3/33C08L33/14C08L41/00
    • C11D3/2086C08J3/14C08L33/00C08L33/14C08L35/00C08L41/00C11D3/33C11D3/34C11D3/3757C11D3/378C11D3/3902C11D3/3942C11D3/3947C11D7/265C11D7/34C08L2666/04
    • Provided is a copolymer aqueous solution which exerts a high calcium carbonate-deposition suppressing ability even under high hardness condition, has excellent storage stability, and suppresses coloring of a detergent to yellow even when used as a detergent raw material. The water-soluble copolymer aqueous solution includes a water-soluble copolymer and hydrogen peroxide as essential components, in which: the water-soluble copolymer at least includes, as its structure, a structural unit originating from a monoethylenic unsaturated dicarboxylic acid (or dicarboxylate) monomer having 4 to 6 carbon atoms or its anhydride (a) at 30 to 60 mol %, a structural unit originating from a monoethylenic unsaturated monocarboxylic acid (or monocarboxylate) monomer having 3 to 8 carbon atoms (b), and a structural unit originating from a monoethylenic unsaturated monomer having a sulfonic (or sulfonate) group (c); the water-soluble copolymer has a weight average molecular weight of 1,000 or more and 50,000 or less; the water-soluble copolymer aqueous solution has a weight ratio of the hydrogen peroxide of 10 ppm to 50,000 ppm with respect to a solid content of the water-soluble copolymer aqueous solution; and the water-soluble copolymer aqueous solution has a weight ratio of water of 33% to 99%.
    • 提供即使在高硬度条件下也具有高碳酸钙沉积抑制能力的共聚物水溶液,具有优异的储存稳定性,并且即使用作洗涤剂原料也能抑制洗涤剂的着色。 水溶性共聚物水溶液包含水溶性共聚物和过氧化氢作为必要成分,其中:水溶性共聚物至少包含来自单烯属不饱和二羧酸(或二羧酸酯)的结构单元作为其结构, 具有4-6个碳原子的单体或其酸酐(a)的含量为30至60摩尔%,源自具有3-8个碳原子的单烯属不饱和一元羧酸(或单羧酸酯)单体(b)的结构单元,以及起始于 来自具有磺酸(或磺酸)基团(c)的单烯属不饱和单体; 该水溶性共聚物的重均分子量为1000以上且50,000以下, 相对于水溶性共聚物水溶液的固体成分,水溶性共聚物水溶液的过氧化氢重量比为10ppm〜50,000ppm; 水溶性共聚物水溶液的重量比为33〜99%。
    • 5. 发明申请
    • (METH)ACRYLIC ACID COPOLYMER, METHOD FOR PROCUCING THE SAME, AND APPLICATION THEREOF
    • (METH)丙烯酸共聚物,其制备方法及其应用
    • US20090082535A1
    • 2009-03-26
    • US11910081
    • 2006-03-30
    • Masato NakanoShigeru YamaguchiKoji Fukuhara
    • Masato NakanoShigeru YamaguchiKoji Fukuhara
    • C08F20/06C08F230/04C08F2/16C08F20/26C08F26/02
    • C02F5/12C08F2/005C08F220/06C08F220/28C23F11/173C23F14/02
    • To provide: a (meth)acrylic acid copolymer, which exhibits excellent chelating ability, dispersibility, and gel resistance, and can be preferably used in various applications, for example, in a dispersant such as an inorganic pigment and a metal ion, a detergent builder, and a water treatment agent such as a corrosion inhibitor and a scale inhibitor; and a method for producing the (meth)acrylic acid copolymer; and an application thereof. A (meth)acrylic acid copolymer having a constitutional unit (a) derived from a (meth)acrylic acid monomer (A) represented by a general formula (1) and a constitutional unit (b) derived from a hydroxyalkyl (meth)acrylate monomer (B) represented by a general formula (2), wherein the copolymer has a sulfonic acid (sulfonate) group, and a value A of 10 or more, the value A being defined by a formula (1): A=1/(Abs−Abs0) in the formula, R1 represents a hydrogen atom or a methyl group, and X represents a hydrogen atom, a metallic atom, an ammonium group, or an organic amine group; in the formula, R2 represents a hydrogen atom or a methyl group, and Y represents an alkylene group containing 1 to 4 carbon atoms.
    • 提供:具有优异的螯合能力,分散性和凝胶电阻的(甲基)丙烯酸共聚物,并且可以优选用于各种应用中,例如分散剂如无机颜料和金属离子,洗涤剂 助洗剂和水处理剂如腐蚀抑制剂和防垢剂; 和(甲基)丙烯酸共聚物的制造方法, 及其应用。 具有由通式(1)表示的(甲基)丙烯酸单体(A)和由(甲基)丙烯酸羟烷基酯单体衍生的结构单元(b))的结构单元(a)的(甲基)丙烯酸共聚物 (2)表示的共聚物(B),其中所述共聚物具有磺酸(磺酸盐)基,值A为10以上,值A由式(1)定义:A = 1 /( Abs-Abs0),R1表示氢原子或甲基,X表示氢原子,金属原子,铵基或有机胺基; 式中,R 2表示氢原子或甲基,Y表示碳原子数1〜4的亚烷基。