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    • 1. 发明公开
    • 시멘트 혼화제, 이의 제조방법, 및 이를 포함하는 시멘트조성물
    • 水泥混合物,其制备方法和含有该水泥组合物的水泥组合物
    • KR1020080081670A
    • 2008-09-10
    • KR1020070022011
    • 2007-03-06
    • 주식회사 엘지화학지에스건설 주식회사
    • 고창범장순호김규팔김현석문광익전현규손명수은재환서치호지석원
    • C04B24/00C04B24/08C04B24/16
    • C04B24/2647C04B40/0039C04B20/023C04B24/122
    • A cement admixture is provided to impart good workability to a cement composition by improving hardening retardation and preventing a decline in flowability, and to form concrete having high early strength. A cement admixture includes a copolymer salt obtained by neutralizing a carboxylic acid copolymer with an ethanolamine-based or alkyldiethanolamine-based solution. The carboxylic acid copolymer is prepared by polymerizing (a) 50-95wt% of an alkoxypolyalkyleneglycolmono(meth)acrylic acid ester monomer represented by a formula 1, (b) 3-45wt% of a (meth)acrylic acid monomer represented by a formula 2 or salts thereof, and (c) 0.5-20wt% of a polyoxyalkylenealkenylether sulfate salt represented by a formula 3. In the formula 1, R^1 is a hydrogen atom or methyl, R^2O is one or a mixture of at least two selected from C2-4 oxyalkylene, and may be added in a block or random form in case of the mixture, R^3 is C1-4 alkyl, m is the average addition mole number of oxyalkylene groups, and is an integer of 50-200. In the formula 2, R^4 is a hydrogen atom or methyl, and M^1 is a hydrogen atom, monovalent metal, divalent metal, ammonium, or organic amine. In the formula 3, R^5 is a hydrogen atom or methyl, R^6 is C1-3 alkylene, phenylene, or alkylphenylene, R^7 is one or a mixture of at least two selected from C1-4 oxyalkylene, and may be added in a block or random form in case of the mixture, n is the average addition mole number of oxyalkylene groups and an integer of 10-50, and M^2 is a hydrogen atom, monovalent metal, ammonium, or organic amine.
    • 提供水泥混合物以通过改善硬化延迟和防止流动性下降来赋予水泥组合物良好的可加工性,并形成具有高早强度的混凝土。 水泥混合物包括通过用乙醇胺或烷基二乙醇胺溶液中和羧酸共聚物获得的共聚物盐。 通过聚合(a)50-95重量%的由式1表示的烷氧基聚亚烷基二醇(甲基)丙烯酸酯单体,(b)3-45重量%的式(甲基)丙烯酸单体 2或其盐,和(c)0.5-20重量%的由式3表示的聚氧化烯亚烷基醚硫酸盐。在式1中,R 1是氢原子或甲基,R 12 O是至少一个或至少 两个选自C2-4氧化烯,并且可以在混合物的情况下以嵌段或无规形式加成,R 3为C 1-4烷基,m为氧化烯基的平均加成摩尔数,为50的整数 -200。 在式2中,R 4是氢原子或甲基,M 1是氢原子,一价金属,二价金属,铵或有机胺。 在式3中,R 5是氢原子或甲基,R 6是C 1-3亚烷基,亚苯基或烷基亚苯基,R 7是一个或选自C 1-4氧化烯中的至少两种的混合物,并且可以 在混合物的情况下以嵌段或无规形式加成,n是氧化烯基的平均加成摩尔数和10-50的整数,M 2是氢原子,一价金属,铵或有机胺。
    • 5. 发明授权
    • 고흡수성 수지의 제조 방법
    • 超吸收聚合物的制备方法
    • KR101680829B1
    • 2016-11-29
    • KR1020130116757
    • 2013-09-30
    • 주식회사 엘지화학
    • 김기철이상기김규팔박성수
    • C08F2/10C08F20/10C08J3/075C08L101/14
    • C08F2/50C08F2/10C08F2/48C08F6/008C08F220/18C08J3/075C08L101/14
    • 본발명은고흡수성수지의제조방법에관한것이다. 본발명에따른고흡수성수지의제조방법은수용성에틸렌계불포화단량체, 열중합개시제및 광중합개시제를포함하는모노머조성물에대하여 30 내지 55℃의온도에서광중합을진행하는단계; 55 내지 120℃의온도에서열중합및 광중합을진행하여함수겔상중합체를형성하는단계; 및상기함수겔상중합체를건조하는단계를포함한다. 본발명에따르면, 저온에서의광중합후 고온에서의열중합또는광중합하는 2단계의중합단계를포함하여, 향상된물성을갖는고흡수성수지를수득할수 있다.
    • 本公开涉及一种制备高吸水性聚合物的方法。 本发明的高吸水性聚合物的制备方法包括在30〜55℃的温度下进行包含水溶性乙烯不饱和单体,热聚合引发剂和光聚合引发剂的单体组合物的光聚合的工序; 在55至120℃的温度下进行热聚合和光聚合以形成水凝胶聚合物; 并干燥水凝胶聚合物。 根据本发明,通过包括两个聚合步骤,包括在低温下进行光聚合,然后在高温下进行热聚合或光聚合,可以获得具有改善的物理性能的高吸水性聚合物。
    • 8. 发明公开
    • 고흡수성 수지의 제조 장치 및 이를 이용한 고흡수성 수지의 제조 방법
    • 用于制备超吸收聚合物的装置和使用其的超级吸收聚合物的制备方法
    • KR1020110138636A
    • 2011-12-28
    • KR1020100058638
    • 2010-06-21
    • 주식회사 엘지화학
    • 원태영김기철이상기김규팔한장선
    • B01J19/28C08F2/01C08F10/02
    • B01J19/28C08F2/01C08F10/02
    • PURPOSE: An apparatus for manufacturing a high absorbent resin and a method for manufacturing the high absorbent resin using the same are provided to prevent the overflow and the reverse flow of a monomer composition during a reaction by forming a concave part on a rotary belt. CONSTITUTION: An apparatus for manufacturing a high absorbent resin includes two or more rotary shafts(1), a belt(2), a concave part, and a monomer composition supplying part(4). The belt is installed to surround the rotary shafts and moves to a pre-set direction by the rotation of the rotary shafts. The concave part is formed at least part of the belt. Belt supporting parts are arranged at both lateral terminals of the belt and maintain the shape of the belt with a horizontal bottom part and the concave part.
    • 目的:提供一种高吸水性树脂的制造装置及使用其的高吸收性树脂的制造方法,以通过在旋转带上形成凹部来防止反应期间的单体组合物的溢出和逆流。 构成:用于制造高吸收性树脂的装置包括两个或更多个旋转轴(1),带(2),凹部和单体组合物供给部(4)。 皮带安装成围绕旋转轴并通过旋转轴的旋转而移动到预定的方向。 该凹部形成为带的至少一部分。 皮带支撑部件布置在皮带的两个侧端处,并且保持具有水平底部部分和凹部的带的形状。
    • 9. 发明公开
    • 고흡수성 수지 제조용 중합 반응기 및 이를 이용한 고흡수성 수지의 제조 방법
    • 超级吸收聚合物的聚合反应器及其使用的超级吸收聚合物的制备方法
    • KR1020110138635A
    • 2011-12-28
    • KR1020100058637
    • 2010-06-21
    • 주식회사 엘지화학
    • 원태영김기철이상기김규팔한장선
    • B01J19/20B01J19/08C08F2/01C08F2/48
    • B01J19/20B01J19/123C08F2/01C08F2/48
    • PURPOSE: A polymerization reactor for manufacturing a high absorbent resin and a method for manufacturing the high absorbent resin using the same are provided to improve the efficiency of polymerization and to facilitate the maintenance of a reactor by varying the number, the shape, the size, or the material of impellers according to the region of the reactor. CONSTITUTION: A reacting part(10) is prepared. A monomer composition supplying part(16) is in connection with one terminal of the reacting part and supplies a monomer composition solution containing a monomer, a polymerization initiator, and a solvent. A stirring shaft(12) is connected from one terminal to another terminal of the reacting part. A plurality of impellers(14) is installed around the stirring shaft. A discharging part(18) is installed at another terminal of the reacting part and discharged the polymer.
    • 目的:提供一种用于制造高吸收性树脂的聚合反应器和使用其的高吸收性树脂的制造方法,以提高聚合效率,并且通过改变反应器的数量,形状,尺寸, 或根据反应器区域的叶轮的材料。 构成:制备反应部分(10)。 单体组合物供给部(16)与反应部的一个末端连接,供给含有单体,聚合引发剂和溶剂的单体组合物溶液。 搅拌轴(12)从反应部件的一个端子连接到另一个端子。 多个叶轮(14)安装在搅拌轴周围。 排出部分(18)安装在反应部件的另一端并排出聚合物。