Abrasive tool making process – material – or composition – With synthetic resin
Reexamination Certificate
2006-07-19
2010-11-16
Mayes, Melvin C (Department: 1793)
Abrasive tool making process, material, or composition
With synthetic resin
C451S526000
Reexamination Certificate
active
07833297
ABSTRACT:
Provided is a polyurethane polishing pad. More specifically, the present invention provides a polyurethane polishing pad having an interpenetrating network structure of a vinyl polymer with a polyurethane matrix via radical polymerization and having no pores and gas bubbles. The polyurethane polishing pad having an interpenetrating network structure of a vinyl polymer exhibits uniform dispersibility and reduced changes in hardness of the urethane pad due to heat and slurry, thereby resulting in no deterioration of polishing efficiency due to abrasion heat and solubility in the slurry upon polishing, and also enables a high-temperature polishing operation. Further, according to the present invention, the interpenetrating network structure leads to an improved polishing rate and abrasion performance, thereby significantly increasing the service life of the polishing pad.
REFERENCES:
patent: 4927432 (1990-05-01), Budinger et al.
patent: 5209760 (1993-05-01), Wiand
patent: 1 108 500 (2001-06-01), None
patent: 2000218551 (2000-08-01), None
patent: 2001198796 (2001-07-01), None
patent: 2001239453 (2001-09-01), None
patent: 2001239454 (2001-09-01), None
patent: 2000071168 (2003-03-01), None
patent: 2005059179 (2005-03-01), None
patent: WO 94/04599 (1994-03-01), None
Jun Sung-Min
Lee Ju-Yeol
Park In-Ha
Abelman ,Frayne & Schwab
Mayes Melvin C
Oudenaren Sarah Van
SKC Co. Ltd.
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