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    Cementitious dry cast mixture
    5.
    发明授权
    Cementitious dry cast mixture 有权
    水泥干混合物

    公开(公告)号：US06461425B2

    公开(公告)日：2002-10-08

    申请号：US09847693

    申请日：2001-05-02

    申请人： Heath Brown ,  Jeffrey R. Bury ,  Lan Huang ,  Runhai Lu ,  Jesse Osborne ,  Ken Sroka ,  Thomas M. Vickers, Jr.

    发明人： Heath Brown ,  Jeffrey R. Bury ,  Lan Huang ,  Runhai Lu ,  Jesse Osborne ,  Ken Sroka ,  Thomas M. Vickers, Jr.

    IPC分类号： C04B2412

    CPC分类号： C04B24/2647 ,  C04B24/163 ,  C04B24/243 ,  C04B24/26 ,  C04B24/2641 ,  C04B24/2652 ,  C04B24/2664 ,  C04B24/267 ,  C04B24/2688 ,  C04B24/2694 ,  C04B2103/408 ,  C04B2111/00068

    摘要： The present invention is directed to cementitious dry cast mixtures for forming cementitious articles, particularly a cementitious dry cast mixture containing a dispersant, wherein said dispersant is a derivatized polycarboxylate dispersant which is a polymer comprising units derived from at least a substituted carboxylic acid monomer or substituted ethylenically unsaturated monomer, and optionally including at least one of an unsaturated hydrocarbon, an N-polyoxyalkylene maleimide, and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer. The cementitious dry cast mixture has a reduced effective dose of dispersant; compacts and consolidates in response to vibration energy; reduces the cycle time in the production of articles manufactured from dry cast mixtures; provides for increased green strength, density, and early compressive strength; and improves the surface aesthetics of articles manufactured from dry cast mixtures. Additionally, a surface active agent/air entraining agent can be included in combination with the dispersant to provide for increased swipe effect.

    摘要翻译： 本发明涉及用于形成水泥质制品的水泥质干法浇铸混合物，特别是含有分散剂的水泥质干浇注混合物，其中所述分散剂是衍生化的聚羧酸酯分散剂，其是包含衍生自至少取代的羧酸单体或取代的单体的聚合物 烯键式不饱和单体，并且任选地包括不饱和烃，N-聚氧化烯马来酰亚胺和未取代的羧酸单体和烷氧基聚氧化烯伯胺取代的羧酸单体的缩合产物中的至少一种。 水泥质干法浇注混合物的分散剂有效剂量降低; 响应于振动能量紧凑和整合; 减少了由干式混合物制造的制品生产中的循环时间; 提供增加的生坯强度，密度和早期抗压强度; 并且改善了由干式混合物制造的制品的表面美观性。 此外，表面活性剂/加气剂可以与分散剂结合使用以提供增加的擦拭效果。

    Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor
    6.
    发明授权
    Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor 有权

    公开(公告)号：US06391106B1

    公开(公告)日：2002-05-21

    申请号：US09912182

    申请日：2001-07-24

    申请人： John Moreau ,  Runhai Lu ,  Jeffrey R. Bury ,  Thomas M. Vickers, Jr.

    发明人： John Moreau ,  Runhai Lu ,  Jeffrey R. Bury ,  Thomas M. Vickers, Jr.

    IPC分类号： C04B2404

    摘要： A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures.

    Derivatized polycarboxylate dispersants
    10.
    发明授权
    Derivatized polycarboxylate dispersants 失效
    衍生的聚羧酸酯分散剂

    公开(公告)号：US06310143B1

    公开(公告)日：2001-10-30

    申请号：US09212652

    申请日：1998-12-16

    申请人： Thomas M. Vickers, Jr. ,  Rainer Packe-Wirth ,  Jeffrey R. Bury ,  Jesse Osborne ,  Runhai Lu ,  John Moreau ,  Lynn E. Brower ,  Samy M. Shendy ,  John Pickett

    发明人： Thomas M. Vickers, Jr. ,  Rainer Packe-Wirth ,  Jeffrey R. Bury ,  Jesse Osborne ,  Runhai Lu ,  John Moreau ,  Lynn E. Brower ,  Samy M. Shendy ,  John Pickett

    IPC分类号： B01F1734

    CPC分类号： C04B24/267 ,  C04B28/04 ,  C04B2103/0059 ,  C04B2103/408 ,  C04B2103/50 ,  C08F8/44 ,  Y02W30/92 ,  Y02W30/94 ,  Y10S516/912 ,  Y10S516/915 ,  Y10S525/919 ,  Y10S526/932 ,  C04B18/08 ,  C04B18/146 ,  C04B2103/10 ,  C04B14/106 ,  C08F8/32 ,  C08F212/08 ,  C08F222/06

    摘要： The present invention is directed to derivatized polycarboxylate dispersants for cementitious mixtures, including those mixtures with high percentages of pozzolan cement replacement and dry cast applications. In particular, the invention is directed to a cementitious mixture comprising cement, including cements with high percentages of pozzolan cement replacement, water, coarse aggregate, fine aggregate, and including a dispersant, wherein said dispersant is a derivatized polycarboxylate dispersant, or combination of polycarboxylate dispersants, which is a derivatized polymer comprising a backbone having moieties derived from (a) an unsaturated hydrocarbon; (b) at least one of a substituted carboxylic acid monomer, a substituted ethylenically unsaturated monomer, and maleic anhydride; and (c) optionally including an N-polyoxyalkylene succinimide; and wherein derivative moieties are pendant to the backbone monomer by at least one ester linkage and at least one amide linkage. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures.

    摘要翻译： 本发明涉及用于水泥混合物的衍生的聚羧酸酯分散剂，包括具有高百分比的火山灰水泥替代物和干浇注应用的那些混合物。 特别地，本发明涉及包含水泥的水泥混合物，包括具有高百分比的火山灰水泥替代物的水泥，水，粗骨料，细骨料，并且包括分散剂，其中所述分散剂是衍生化的聚羧酸酯分散剂，或多羧酸盐组合 分散剂，其是衍生的聚合物，其包含具有衍生自（a）不饱和烃的部分的主链; （b）取代的羧酸单体，取代的烯属不饱和单体和马来酸酐中的至少一种; 和（c）任选地包括N-聚氧化烯琥珀酰亚胺; 并且其中衍生部分通过至少一个酯键和至少一个酰胺键垂饰于主链单体。 衍生化的聚羧酸酯分散剂提供更长的保质期分散剂，改善水泥混合物的分散性，水泥混合物中的水分降解，并且是高火山灰替代水泥混合物中的有效分散剂。