Abrasive particles for surface polishing

Details Abrasive particles for surface polishing Abrasive particles for surface polishing

2007-08-21

2007-08-21

Koslow, C. Melissa (Department: 1755)

Abrasive tool making process, material, or composition

With inorganic material

C051S309000

Reexamination Certificate

active

09841255

ABSTRACT:
Polishing compositions are described that are appropriate for fine polishing to very low tolerances. The polishing compositions include particles with small diameters with very narrow distributions in size and effectively no particles with diameters several times larger than the average diameter. Furthermore, the particles generally have very high uniformity with respect to having a single crystalline phase. Preferred particles have an average diameter less than about 200 nm. Laser pyrolysis processes are described for the production of the appropriate particles including metal oxides, metal carbides, metal sulfides, SiO2and SiC.

REFERENCES:
patent: 2346553 (1944-04-01), Brown, Jr.
patent: 3586741 (1971-06-01), Vognsgaard
patent: 4011064 (1977-03-01), Lee et al.
patent: 4011099 (1977-03-01), Gutsche
patent: 4021263 (1977-05-01), Rosenblum
patent: 4063907 (1977-12-01), Lee et al.
patent: 4356107 (1982-10-01), Payne
patent: 4659681 (1987-04-01), Rice et al.
patent: 4668647 (1987-05-01), Rice et al.
patent: 4687753 (1987-08-01), Fiato et al.
patent: 4690693 (1987-09-01), Dobbs et al.
patent: 4788222 (1988-11-01), Rice et al.
patent: 4842837 (1989-06-01), Shimizu et al.
patent: 4910155 (1990-03-01), Cote et al.
patent: 4927464 (1990-05-01), Cowie
patent: 4956313 (1990-09-01), Cote et al.
patent: 5006318 (1991-04-01), Demazeau et al.
patent: 5013706 (1991-05-01), Schramm et al.
patent: 5049371 (1991-09-01), Rinn et al.
patent: 5064517 (1991-11-01), Shimo
patent: 5068056 (1991-11-01), Robb
patent: 5128081 (1992-07-01), Siegel et al.
patent: 5228886 (1993-07-01), Zipperian
patent: 5300130 (1994-04-01), Rostoker
patent: 5318927 (1994-06-01), Sandhu et al.
patent: 5320800 (1994-06-01), Siegel et al.
patent: 5352277 (1994-10-01), Sasaki
patent: 5389194 (1995-02-01), Rostoker et al.
patent: 5443811 (1995-08-01), Kavinen
patent: 5456986 (1995-10-01), Majetich et al.
patent: 5527423 (1996-06-01), Neville et al.
patent: 5547649 (1996-08-01), Beck et al.
patent: 5549973 (1996-08-01), Majetich et al.
patent: 5599529 (1997-02-01), Cowie
patent: 5626715 (1997-05-01), Rostoker
patent: 5840111 (1998-11-01), Wiederhoft et al.
patent: 6290735 (2001-09-01), Kambe et al.
patent: 6329058 (2001-12-01), Arney
patent: 2001/0000912 (2001-05-01), Kambe et al.
patent: 0 209 298 (1987-01-01), None
patent: 0373765 (1990-06-01), None
patent: 0395925 (1990-11-01), None
patent: 0 520 217 (1992-12-01), None
patent: 0 554 908 (1993-08-01), None
patent: 554908 (1993-08-01), None
patent: 0637619 (1995-02-01), None
patent: 0773270 (1996-11-01), None
patent: 0 776 862 (1997-06-01), None
patent: 0 776 862 (1997-06-01), None
patent: 62-121643 (1987-06-01), None
patent: 2275629 (1990-11-01), None
patent: 08-003540 (1996-01-01), None
patent: WO96/28137 (1996-09-01), None
patent: WO96/41043 (1996-12-01), None
Definition of “monodisperse” from Webster's Dictionary, 3rded. 1993.
Quinton Ford, “Manufacturing Nanocrystalline Materials by Physical Vapor Deposition”, Ceram. Ind., Jan. 1998.
Bi et al., “Nanocrystalline alpha-Fe, Fe3C, and Fe7C3 produced by CO2 laser pyrolysis”, J. Mater. Res., vol. 8, No. 7, Jul. 1993.
Ford, “Manufacture Nanocrystalline Materials by Physical Vapor Synthesis”, no date.
Veintemillas-Verdaguer et al., “Continuous Production of γ-Fe2O3Ultrafine Powders by Laser Pyrolysis”, Material Letters 35, 1998, pp. 227-231.
Alexandrescu et al., “Iron-Oxide-Based Nanoparticles Produced by Pulsed Infrared Laser Pyrolysis of Fe(CO)5”, Materials Chemistry and Physics 55, 1998, pp. 115-121.
Bi et al., “Nanocrystalline α-Fe, Fe3C, and Fe7C3produced by CO2laser pyrolysis”. J. Mater. Res., vol. 8, No. 7, Jul. 1993, pp. 1666-1674.
Majima et al., “Preparation of of γ-Iron Ultrafine Particles Using a Transversely Excited Atmospheric CO2Laser”, Jpn. J. Appl. Phys., vol. 33, Part 2, No. 2B, Feb. 15, 1994, pp. L223-L226.
Cannon et al., “Sinterable Ceramic Powders from Laser-Driven Reactions: II Powder Characteristics and Process Variables”, Journal of the American Ceramic Society, vol. 65, No. 7, Jul. 1982, pp. 330-335.
EP 554908, Aug. 11, 1993, Europe, Aiay.

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