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    Cement composition
    5.
    发明授权
    Cement composition 失效
    水泥组成

    公开(公告)号：US5925184A

    公开(公告)日：1999-07-20

    申请号：US803759

    申请日：1997-02-21

    申请人： Tsuyoshi Hirata ,  Tsutomu Yuasa ,  Toru Uno ,  Koichiro Nagare ,  Hideyuki Tahara ,  Shogo Iwai

    发明人： Tsuyoshi Hirata ,  Tsutomu Yuasa ,  Toru Uno ,  Koichiro Nagare ,  Hideyuki Tahara ,  Shogo Iwai

    IPC分类号： C04B24/26 ,  C04B24/32 ,  C04B28/02 ,  C04B24/04

    CPC分类号： C04B28/02 ,  C04B24/2647 ,  C04B24/2694 ,  C04B2103/308

    摘要： A cement composition excelling in the slump retaining property which comprises at least cement admixture comprising as a main ingredient thereof (I) a copolymer (A) of short-chain polyalkylene glycol (meth)acrylate (a), a long-chain polyalkylene glycol (meth)acrylate (b), a carboxylic acid monomer (c), and a monomer copolymerizable with the monomers mentioned above or a salt of the copolymer (B), (II) a copolymer (A.sub.1) of the monomers (a), (c), and (d) mentioned above or a salt thereof, (III) a mixture of a copolymer (A.sub.1) of the monomers (a), (c), and (d) mentioned above or a salt (B.sub.1) of thereof with a known cement admixture, or (IV) a polycarboxylic acid based polymer (A.sub.3) manifesting to a calcium sulfoaluminate based expansive additive an adsorption ratio of not less than 90% in 5 minutes at room temperature when added in an amount of 0.1% by weight as solids or a salt (B.sub.3) thereof, or (V) a mixture of said polycarboxylic acid polymer with a known cement dispersant; cement; and water.

    摘要翻译： 坍落度保持性优异的水泥组合物至少包括水泥混合物，其包含主要成分（I）短链聚亚烷基二醇（甲基）丙烯酸酯（a）的共聚物（A），长链聚亚烷基二醇（ 甲基丙烯酸酯（b），羧酸单体（c）和可与上述单体共聚的单体或共聚物（B），（II）的单体（a）的共聚物（A1） c）和（d）或其盐，（III）上述单体（a），（c）和（d）的共聚物（A1）或其盐（B1）的混合物 使用已知的水泥混合物，或（IV）表示基于硫铝酸钙的膨胀性添加剂的多元羧酸系聚合物（A3），当以0.1％的量加入时，在室温下5分钟内吸附率不小于90％ 重量为固体或其盐（B3），或（V）所述多元羧酸聚合物与已知的水泥分散剂的混合物; 水泥; 和水。

    Polycarboxylic acid concrete admixture
    8.
    发明授权
    Polycarboxylic acid concrete admixture 失效
    聚羧酸混凝土外加剂

    公开(公告)号：US07638563B2

    公开(公告)日：2009-12-29

    申请号：US10556086

    申请日：2004-05-07

    申请人： Tomotaka Nishikawa ,  Toru Uno ,  Hirokazu Yamamoto ,  Yukiko Nishikawa ,  Hiromichi Tanaka ,  Tomiyasu Ueta

    发明人： Tomotaka Nishikawa ,  Toru Uno ,  Hirokazu Yamamoto ,  Yukiko Nishikawa ,  Hiromichi Tanaka ,  Tomiyasu Ueta

    IPC分类号： C04B24/26 ,  C08F30/04 ,  C08F20/26 ,  C08F20/10 ,  C08F18/00

    CPC分类号： C04B24/2647 ,  C04B40/0039 ,  C04B2103/302 ,  C04B2103/304 ,  C08F290/062

    摘要： The polycarboxylic acid concrete admixture of the present invention exhibits properties such as decreasing the concrete viscosity, improving the slump-retaining ability, and suppressing bleeding water, and is improved in the ability to cement compositions or the like. The above-mentioned polycarboxylic acid concrete admixture comprises a polycarboxylic acid polymer containing a polyalkylene glycol in the side chain, wherein the polycarboxylic acid polymer is obtained by polymerizing monomer components containing an alkyl (meth)acrylate monomer and a specific polyalkylene glycol unsaturated monomer and unsaturated carboxylic acid (salt) monomer, and it has a specific weight average molecular weight.

    摘要翻译： 本发明的多元羧酸混凝土外加剂具有降低混凝土粘度，提高坍落度保持力和抑制渗水的性质，提高了水泥组合物等的能力。 上述多元羧酸混凝土外加剂包括在侧链中含有聚亚烷基二醇的多元羧酸聚合物，其中所述多元羧酸聚合物通过聚合含有（甲基）丙烯酸烷基酯单体和特定聚亚烷基二醇不饱和单体和不饱和单体的单体成分而获得 羧酸（盐）单体，并且具有比重的重均分子量。

    Cement admixture and cement composition
    9.
    发明授权
    Cement admixture and cement composition 有权
    水泥外加剂和水泥组成

    公开(公告)号：US06911494B2

    公开(公告)日：2005-06-28

    申请号：US10253425

    申请日：2002-09-25

    申请人： Akihiko Yamashita ,  Hiromichi Tanaka ,  Tsuyoshi Hirata ,  Toru Uno ,  Yoshiyuki Onda

    发明人： Akihiko Yamashita ,  Hiromichi Tanaka ,  Tsuyoshi Hirata ,  Toru Uno ,  Yoshiyuki Onda

    IPC分类号： C04B24/26 ,  C04B24/32 ,  C08G65/26 ,  C08G65/332 ,  C08L71/02 ,  C08L31/02

    CPC分类号： C04B24/2647 ,  C04B2103/308 ,  C04B2103/32 ,  C08G65/2609 ,  C08G65/3322 ,  C08L71/02 ,  C08L2205/05 ,  C08L2666/04

    摘要： It is an object of the present invention to provide a cement admixture which can show not only a high dispersing ability and a slump loss preventing effect but also a viscosity reducing effect and can show these characteristics even in the high water reduction ratio range, and a cement composition in which this admixture is used.A cement admixture comprising, as three essential constituents, a copolymer (A), an unsaturated (poly)alkylene glycol ether monomer (a) and an unpolymerizable (poly)alkylene glycol (B) not containing an alkenyl group, wherein the content of the unsaturated (poly)alkylene glycol ether monomer (a) is 1 to 100% by mass relative to the copolymer (A) and the content of the unpolymerizable (poly)alkylene glycol (B) not containing an alkenyl group is 1 to 50% by mass relative to the copolymer (A), the copolymer (A) comprising, as essential constituent units, a constituent unit (I) derived from the unsaturated (poly)alkylene glycol ether monomer (a) and a constituent unit (II) derived from an unsaturated carboxylic acid monomer (b), with the constituent unit (I) and constituent unit (II) each accounting for not less than 1% by mass based on all the constituent units, and the unsaturated carboxylic acid monomer (b) being an unsaturated monocarboxylic acid monomer.

    摘要翻译： 本发明的目的是提供一种能够显示出高的分散能力和防止坍落度损失的作用的水泥混合物，而且还能够降低粘度，并且即使在高的减水率范围内也能够显示出这些特性， 使用该混合物的水泥组合物。 一种水泥外加剂，其包含不含烯基的共聚物（A），不饱和（聚）亚烷基二醇醚单体（a）和不可聚合（聚）亚烷基二醇（B）作为三种必需成分，其中， 不饱和（聚）亚烷基二醇醚单体（a）相对于共聚物（A）为1〜100质量％，不含烯基的不可聚合（聚）亚烷基二醇（B）的含量为1〜50％ 相对于共聚物（A）的共聚物（A），作为必要构成单元的共聚物（A），由不饱和（聚）亚烷基二醇醚单体（a）得到的构成单元（I）和由 不饱和羧酸单体（b）与构成单元（I）和构成单元（II）各自占所有构成单元不少于1质量％，不饱和羧酸单体（b）为 不饱和一元羧酸单体。

    Method for producing chemical reactive substance and polycarboxylic acid produced thereby
    10.
    发明授权
    Method for producing chemical reactive substance and polycarboxylic acid produced thereby 有权
    由此生产化学反应物质和多元羧酸的方法

    公开(公告)号：US06825289B2

    公开(公告)日：2004-11-30

    申请号：US10332583

    申请日：2003-03-21

    申请人： Masaya Yamamoto ,  Toru Uno ,  Yoshiyuki Onda ,  Koichiro Nagare ,  Minoru Miyagawa

    发明人： Masaya Yamamoto ,  Toru Uno ,  Yoshiyuki Onda ,  Koichiro Nagare ,  Minoru Miyagawa

    IPC分类号： C08F201

    CPC分类号： C04B24/2647 ,  C11D3/2082 ,  C11D3/3757

    摘要： The present invention is to provide a production method of chemical reactive substances with stable quality by which solidification, gel formation, and the resulting blockade within material injection nozzles are prevented, and contamination of a reaction system with the gelled matter is prevented, as well as occurrence of problems on a production process due to the gelled matter is suppressed, when the chemical reactive substances are produced by injecting the liquid materials containing reactive substances having unsaturated double bonds into the reaction vessel through the material injection nozzles of the reaction vessel. The present invention is a production method of a chemical reactive substance which comprises injecting a liquid material containing a reactive substance having an unsaturated double bond into a reaction vessel through a material injection nozzle of said reaction vessel and causing a reaction at a reaction temperature of not less than 50° C., said production method of the chemical reactive substance including a step of removing at least a part of residual liquid remained in the material injection nozzle from inside of the material injection nozzle.

    摘要翻译： 本发明是提供一种质量稳定的化学反应物质的制造方法，能够防止材料注入喷嘴内的固化，凝胶形成和堵塞，防止凝胶化物质的反应体系的污染， 当化学反应物质是通过将含有不饱和双键的反应性物质的液体材料通过反应容器的材料注入喷嘴注入反应容器而产生的时候，由于凝胶状物而导致的生产过程中出现的问题被抑制。 本发明是化学反应性物质的制造方法，其包括通过所述反应容器的材料注入喷嘴将含有具有不饱和双键的反应性物质的液体材料注入反应容器中，并使反应温度不低于50 ℃，表示生产方法 所述化学反应物质包括从所述材料注射喷嘴的内部除去所述材料注入喷嘴中残留的残留液体的至少一部分的步骤。