Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2004-07-14
2008-10-21
Le, H. T (Department: 1794)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C423S331000
Reexamination Certificate
active
07438976
ABSTRACT:
The invention provides high surface area talc compositions by a novel hybrid milling method or soaking method. The hybrid milling method comprises dry milling talc powder followed by mixing with water and wet milling to provide a nano-talc slurry with high surface area, also of the invention. The soaking method comprises dry milling talc powder followed by mixing with water and soaking the powder for a period of time to provide high surface area nano-talc slurry, also of the invention. The slurry may be dewatered and dried to provide dry nano-talc powder. The nano-talc powder provided by the invention is a novel hydrophilic talc composition also of the invention.
REFERENCES:
patent: 2844486 (1958-07-01), Lamar
patent: 3787330 (1974-01-01), Sugahara et al.
patent: 4176137 (1979-11-01), Platz et al.
patent: 4325514 (1982-04-01), Hemingsley
patent: 4391733 (1983-07-01), Lamar et al.
patent: 4430249 (1984-02-01), Gate
patent: 4770894 (1988-09-01), Usui et al.
patent: 4793985 (1988-12-01), Price et al.
patent: 4845191 (1989-07-01), Hautier
patent: 4957554 (1990-09-01), Mathers et al.
patent: 5120365 (1992-06-01), Kogler
patent: 5401482 (1995-03-01), Clauss et al.
patent: 5601875 (1997-02-01), Palm
patent: 6348536 (2002-02-01), Fourty et al.
patent: 6478865 (2002-11-01), Malla
patent: 6610136 (2003-08-01), Malla
patent: 6783631 (2004-08-01), Schulz
patent: 7249723 (2007-07-01), He et al.
patent: 2003/0234304 (2003-12-01), Miao
patent: 2006/0014880 (2006-01-01), Zhong et al.
patent: 2006/0040102 (2006-02-01), Li et al.
patent: 2006/0086837 (2006-04-01), He et al.
Khodakov, Edelman, “Experimental Investigations of Spontaneous Dispersion in Molecularly Compact Soliod Aggregates,”Kolloidnyl Zhurnal, Sep.-Oct. 1969, pp. 771-776, vol. 31, No. 5 Plenum Publishing Corporation, New York, NY.
Khodakov, Rebinder, “The Effect of the Medium in the Fine Dispersion of Solids”, Kolloidnyl Zhurnal, 1960, pp. 365-375, vol. 22, No. 3 The Academy of Sciences of the USSR Press, Moscow, USSR.
Dunn Christopher
He Jianhong
Le H. T
NGX, Inc.
Parrish, PC Debra M.
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