公开(公告)号：US07393886B2

公开(公告)日：2008-07-01

申请号：US10556071

申请日：2004-06-25

申请人： Hirofumi Bandoh ,  Wernher M. Danzinger ,  Jun Imamura ,  Kaname Saitoh ,  Tetsu Tomoyose ,  Atsushi Kobayashi ,  Akira Ikeda ,  Seiichi Koshisaka

发明人： Hirofumi Bandoh ,  Wernher M. Danzinger ,  Jun Imamura ,  Kaname Saitoh ,  Tetsu Tomoyose ,  Atsushi Kobayashi ,  Akira Ikeda ,  Seiichi Koshisaka

IPC分类号： C08K3/00

CPC分类号： C04B24/2694 ,  C04B24/2658 ,  C04B28/02 ,  C04B40/0039 ,  C04B2103/408 ,  C08G73/028 ,  C08L33/24 ,  C08L79/02 ,  C09J133/24 ,  C04B2103/304 ,  C04B2103/50

摘要： A superior cement dispersant and a concrete composition containing the cement dispersant, the cement dispersant being a water-soluble amphoteric copolymer which contains an alkylene oxide adduct of a polyamide polyamine having an unsaturated group and at least two types of polyalkylene glycol ester. When the cement dispersant is compounded with a concrete composition, the dispersion performance thereof increases with time, and the concrete viscosity is effectively decreased. The cement dispersant composition contains a water-soluble amphoteric copolymer or the neutralized salt thereof as an essential component, which is obtained by copolymerizing an alkylene oxide adduct of a polyamide polyamine having an unsaturated group, (meta)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof, an ester of an alkylene glycol and methacrylic acid, and an ester of an alkylene glycol and acrylic acid. In addition, the concrete composition containing the above cement dispersant is also disclosed.

摘要翻译： 优选的水泥分散剂和含有水泥分散剂的混凝土组合物，水泥分散剂是含有具有不饱和基团的聚酰胺多胺和至少两种聚亚烷基二醇酯的烯化氧加合物的水溶性两性共聚物。 当水泥分散剂与混凝土组合物混合时，其分散性能随时间增加，并且混凝土粘度有效降低。 水泥分散剂组合物含有作为必要成分的水溶性两性共聚物或其中和盐，其通过使具有不饱和基团的聚酰胺多胺，（甲基）丙烯酸或碱金属，铵， ，或其链烷醇胺盐，亚烷基二醇和甲基丙烯酸的酯，以及亚烷基二醇和丙烯酸的酯。 此外，还公开了含有上述水泥分散剂的混凝土组合物。

公开(公告)号：US20090326159A1

公开(公告)日：2009-12-31

申请号：US12310924

申请日：2007-09-13

申请人： Akira Ikeda ,  Seiichi Koshisaka ,  Akira Suga ,  Tomohisa Okada

发明人： Akira Ikeda ,  Seiichi Koshisaka ,  Akira Suga ,  Tomohisa Okada

IPC分类号： C08F267/10 ,  C08F22/02

CPC分类号： C08L71/02 ,  C04B24/2658 ,  C04B40/0039 ,  C04B2103/302 ,  C04B2103/408 ,  C08G65/2633 ,  C08L77/00 ,  C08L2205/05 ,  C08L2666/20 ,  C04B24/287 ,  C04B24/32

摘要： The present invention relates to a cement dispersant, and an object thereof is to provide a cement dispersant having high water reducing property, low setting retardation and low concrete viscosity and taking also applicability into account. The cement dispersant comprises a polycarboxylic acid polymer formed by structural unit (I) composed of a reactive alcohol alkylene oxide adduct and structural unit (II) composed of a reactive dibasic acid, and preferably further structural unit (III) containing polyamide polyamine in the unit, wherein fumaric acid and/or a derivative thereof is used as a partial or main starting material of the structural unit (II). The cement dispersant is excellent in water reducing property, setting retardation and concrete viscosity.

摘要翻译： 水泥分散剂技术领域本发明涉及水泥分散剂，其目的在于提供具有高的降水性，低的凝固阻力和低的混凝土粘度并考虑其适用性的水泥分散剂。 水泥分散剂包括由反应性醇氧化物加合物构成的结构单元（I）和由反应性二元酸组成的结构单元（II）形成的多元羧酸聚合物，优选在单元中含有聚酰胺多胺的另外的结构单元（III） 其中富马酸和/或其衍生物用作结构单元（II）的部分或主要原料。 水泥分散剂具有优异的降水性能，凝固阻力和混凝土粘度。