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    • 1. 发明授权
    • Hydrophilic fine gel particles and process for production thereof
    • 亲水性精细凝胶颗粒及其生产方法
    • US4988568A
    • 1991-01-29
    • US329567
    • 1989-03-28
    • Jun HasegawaHaruki OikawaOsamu KobayashiYasuo KataokaMasayoshi Sekiya
    • Jun HasegawaHaruki OikawaOsamu KobayashiYasuo KataokaMasayoshi Sekiya
    • B01J20/26C08F220/56C12N11/04C12N11/08G01N27/447G01N33/543
    • G01N33/54313B01J20/26C08F220/56C12N11/04C12N11/08G01N27/44747Y10T428/2982
    • Hydrophilic fine gel particles, said particles being crosslinked polymer particles comprising 20-94.8% by weight of a monoethylenically unsaturated amide monomer, 5-60.0% by weight of a crosslinkable ethylenically unsaturated monomer, 0.1-30% by weight of an ethylenically unsaturated carboxylic acid, 0.1-50% by weight of an ester monomer of an acrylic or methacrylic acid, and 0-30% by weight of a monomer copolymerizable with the above-mentioned monomers, said particles having a particle diameter in a water-swollen state of 0.1-10 .mu.m and a weight-average particle diameter/number-average particle diameter ratio of 1.2 or less; and a process for producing hydrophilic fine gel particles having a particle diameter in a water-swollen state of 0.1-10 .mu.m and a weight-average particle diameter/number-average particle diameter ratio of 1.2 or less, which comprises copolymerizing a monomer mixture of 20-94.8% by weight of a monoethylenically unsaturated amide monomer, 5-60.0% by weight of a crosslinkable ethylenically unsaturated monomer, 0.1-30% by weight of an ethylenically unsaturated carboxylic acid, 0.1-50% by weight of an ester monomer of an acrylic or methacylic acid, and 0-30% by weight of a monomer copolymerizable with the above-mentioned monomers using a radical polymerization initiator in a solvent which dissolves these monomers but does not dissolve the resulting polymer.
    • 亲水性精细凝胶颗粒,所述颗粒是交联聚合物颗粒,其包含20-94.8重量%的单烯属不饱和酰胺单体,5-60.0重量%的可交联烯属不饱和单体,0.1-30重量%的烯属不饱和羧酸 ,0.1-50重量%的丙烯酸或甲基丙烯酸的酯单体和0-30重量%的可与上述单体共聚的单体,所述颗粒的水溶胀状态的粒径为0.1 -10μm,重均粒径/数均粒径比为1.2以下; 以及具有水溶胀状态为0.1-10μm,重均粒径/数均粒径比为1.2以下的亲水性微细凝胶粒子的制造方法,其包括将单体混合物 20-94.8重量%的单烯属不饱和酰胺单体,5-60.0重量%的可交联的烯属不饱和单体,0.1-30重量%的烯属不饱和羧酸,0.1-50重量%的酯单体 的丙烯酸或甲基丙烯酸,和0-30重量%的可与上述单体共聚的单体,使用自由基聚合引发剂在溶解这些单体但不溶解所得聚合物的溶剂中。
    • 8. 发明授权
    • Copolymer latex
    • 共聚物胶乳
    • US4613633A
    • 1986-09-23
    • US705639
    • 1985-02-26
    • Masayoshi SekiyaKoichi Harada
    • Masayoshi SekiyaKoichi Harada
    • C08F2/22C08F257/02D21H19/42D21H19/58
    • D21H19/58C08F257/02D21H19/42Y10T428/3154
    • A copolymer latex comprising heterogeneous polymer particles having a hard polymer domain and a soft polymer domain, characterized in that(a) the hard polymer domain is a polymer having a glass transition temperature of at least 60.degree. C.,(b) the soft polymer domain is a copolymer obtained by polymerizing in the presence of a latex of the hard polymer a monomeric composition composed of(i) 20 to 70% by weight of an aliphatic conjugated diene monomer,(ii) 20 to 60% by weight of a monovinylidene aromatic monomer,(iii) 0.5 to 10% by weight of an ethylenically unsaturated acid,(iv) 0 to 10% by weight of an ethylenically unsaturated amide, and(v) 0 to 30% by weight of a monomer copolymerizable with said monomers,(c) the proportion of the hard polymer domain is 55 to 90% by weight of the entire polymer particles, and(d) the proportion of the soft polymer domain is 45 to 10% by weight of the entire polymer particles.
    • 一种包含具有硬聚合物结构域和软聚合物结构域的非均相聚合物颗粒的共聚物胶乳,其特征在于(a)硬聚合物结构域是玻璃化转变温度至少为60℃的聚合物,(b)软聚合物 是在由硬聚合物的胶乳存在下聚合得到的共聚物,该单体组合物由(i)20〜70重量%的脂肪族共轭二烯单体构成,(ii)20〜60重量%的亚乙烯基 芳族单体,(iii)0.5至10重量%的烯属不饱和酸,(iv)0至10重量%的烯属不饱和酰胺,和(ⅴ)0至30重量%的可与所述单体共聚的单体 ,(c)硬聚合物结构域的比例为聚合物颗粒整体的55〜90重量%,(d)软聚合物畴的比例为聚合物粒子整体的45〜10重量%。
    • 10. 发明授权
    • Paper coating composition
    • 纸涂料组合物
    • US4278583A
    • 1981-07-14
    • US105608
    • 1979-12-20
    • Masayoshi Sekiya
    • Masayoshi Sekiya
    • D21H19/58C08L33/02
    • D21H19/58Y10T428/31895
    • A paper coating composition having improved ink receptivity in multi-color printing which comprises(I) 100 parts by weight of a pigment, and(II) 1 to 30 parts by weight, as solids content, of a latex of a copolymer derived from 20 to 50% by weight of an aliphatic conjugated diolefin, 0.5 to 5% by weight of an ethylenically unsaturated acid monomer, 0.5 to 5% by weight of an ethylenically unsaturated amine monomer, and 10 to 74% by weight of a mono-olefinically unsaturated monomer, said latex containing not more than 1% by weight, based on the copolymer of an emulsifier, having a gel point within a pH range of 3.5 to 8.5 and being gellable during the drying of a paper coated with said composition,said composition having a higher pH than the gel point of the latex.
    • 一种在多色印刷中具有改善的油墨接受性的纸涂料组合物,其包含(I)100重量份颜料,和(II)1至30重量份作为固体含量的共聚物胶乳衍生自20 至50重量%的脂族共轭二烯烃,0.5至5重量%的烯属不饱和酸单体,0.5至5重量%的烯键式不饱和胺单体和10至74重量%的单烯属不饱和单体 单体,所述胶乳含有不超过1重量%,基于乳化剂的共聚物,其凝胶点在3.5至8.5的pH范围内,并且在涂覆有所述组合物的纸张的干燥期间可凝胶化,所述组合物具有 比胶乳凝胶点高的pH值。