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    • 8. 发明授权
    • Cementitious dry cast mixture
    • 水泥干混合物
    • US06461425B2
    • 2002-10-08
    • US09847693
    • 2001-05-02
    • Heath BrownJeffrey R. BuryLan HuangRunhai LuJesse OsborneKen SrokaThomas M. Vickers, Jr.
    • Heath BrownJeffrey R. BuryLan HuangRunhai LuJesse OsborneKen SrokaThomas M. Vickers, Jr.
    • C04B2412
    • C04B24/2647C04B24/163C04B24/243C04B24/26C04B24/2641C04B24/2652C04B24/2664C04B24/267C04B24/2688C04B24/2694C04B2103/408C04B2111/00068
    • 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.
    • 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。
    • 10. 发明申请
    • METHOD OF MAKING A COATING AND A COATED ACOUSTICAL PANEL USING DEGRADED FIBERS
    • 制造涂层的方法和使用降解纤维的涂层声学面板
    • US20110232854A1
    • 2011-09-29
    • US12729801
    • 2010-03-23
    • Mark EnglertRunhai LuMatthew Langdon
    • Mark EnglertRunhai LuMatthew Langdon
    • D21H25/04E04B1/86D21H11/00
    • D21J1/08D21J1/20E04B1/86E04B9/001
    • An acoustical panel is made by applying a thin, acoustically-transparent coating to an acoustical base mat. A pulp is made from one or more fillers, a fibrous filler, a binder and water. A thickener solution is prepared from a thickener and water. A portion of the pulp and the thickener solution are mixed under high shear conditions to degrade the fibrous filler and form a smooth coating. The coating is applied to and distributed over a base mat and the coated base mat is then cut and dried to form a coated acoustical panel. The panel is free of visible mineral nodules on the surface of the coating. Optionally, the pulp is a portion of a pulp used to make the base mat. Other embodiments include the use of recycled dust or fine particles of the acoustical panel obtained from cutting or shaping the base mat or coated panels.
    • 通过将薄的声透明涂层施加到声学基底垫上来制造声学面板。 纸浆由一种或多种填料,纤维填料,粘合剂和水制成。 由增稠剂和水制备增稠剂溶液。 一部分纸浆和增稠剂溶液在高剪切条件下混合以降解纤维填料并形成光滑的涂层。 将涂层施加并分布在基底垫上,然后将涂覆的基底垫切割并干燥以形成涂覆的声学面板。 该面板在涂层表面上没有可见的矿物结节。 任选地,纸浆是用于制造基础垫的纸浆的一部分。 其他实施方案包括使用通过切割或成形基础垫或涂覆板获得的再生粉尘或声学板的细颗粒。