Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – With liberating or forming of particles
Reexamination Certificate
2006-03-24
2010-10-05
Theisen, Mary Lynn F (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
With liberating or forming of particles
C264S109000, C264S123000, C264SDIG025, C264SDIG035
Reexamination Certificate
active
07807078
ABSTRACT:
A method for producing components including preparing an aqueous suspension of solids including calcium oxide CaO and silicon dioxide SiO2 with a molar ratio of Ca:Si that is between 0.5:1.0 and 2.5:1.0. Nanocrystalline C—S—H phases are produced by grinding the aqueous suspension and keeping its temperature at or below 100° C. The aqueous phase is separated out from the suspension to form a residue containing the nanocrystalline C—S—H phases. The residued is removed and a powdery product is made by drying the residue. A mold is filled with the powdery product and pressure is applied to form the component. The component is removed from the mold.
REFERENCES:
patent: 4490320 (1984-12-01), Oguri et al.
patent: 5810922 (1998-09-01), Okamoto et al.
patent: 2005/0274516 (2005-12-01), Nelson et al.
patent: 2007/0277472 (2007-12-01), Sinclair
patent: 2832125 (1980-01-01), None
patent: 3302729 (1983-08-01), None
patent: 58135120 (1983-08-01), None
patent: 05124877 (1993-05-01), None
Fumio Saito et al., “Mechanochemical synthesis of hydrated calcium silicates by room temperature grinding”, Solid State Iconics, North Holland Pub. Company Amsterdam, NL, vol. 101-103, Nr. 2001, Nov. 1997, pp. 37-43, XP004103620.
Showa Denko K. K., “Porous calcium silicate products with improved sound absorbation”, Chemical Abstracts + Indexes, American Chemical Society, Columbus, US, vol. 88, No. 16, Apr. 17, 1978, p. 279, XP000188795.
Nippon Isulation K. K., “Shaped calcium silicate articles for thermal insulators and building materials”, Chemical Abstract + Indexes, American Chemical Society, Columbus, US, vol. 114, No. 8, Feb. 24, 1991, p. 381, XP000192686.
S. Goni et al., “Activation of the fly ash pozzolanic reaction by hydrothermal conditions”, Cement and Concrete Research 33, 2003, pp. 1399-1405.
S. C. Mojumdar et al., Synthesis, Moisture Resistance, Thermal, Chemical and SEM Analysis of Marco-Defect-Free (MDF) Cements, Journal of Thermal Analysis and Calorimetry, vol. 78, 2004, pp. 135-144.
George R. Gouda et al., “Characterization of Hot-Pressed Cement Pastes”, Journal of the American Ceramic Society, vol. 59, No. 9-10, 1976, pp. 412-414.
Guomin Mi et al., “Mechanochemical synthesis of tobermorite by wet grinding in a planetry ball mill”, Powder Technology, vol. 93, 1997, pp. 77-81.
Paschenko A.A. et al., Formation of the Structure of Hot-Pressed Cement Paste, Dopo-vidi Akademii Nauk Ukrainskoi RSR, Seriya B, Geologichni Khimichni ta Biologichni Nauki 9, 1990, p. 41 (abstract).
Beuchle Guenter
Garbev Krassimir
Schweike Uwe
Stemmermann Peter
Forschungszentrum Karlsruhe GmbH
Leydig , Voit & Mayer, Ltd.
Theisen Mary Lynn F
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