Method for preparing toner containing carbon black pigment with low surface sulfur levels

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United States of America Patent

PATENT NO 8603721
APP PUB NO 20120258396A1
SERIAL NO

13081090

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a process for preparing toner particles which comprises: (a) selecting a carbon black; (b) measuring the surface level of sulfur of the carbon black by X-ray Photoelectron Spectroscopy to ensure that the surface level of sulfur is no more than about 0.05 atomic percent; and (c) mixing the carbon black with a resin to generate a toner composition.

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Patent Owner(s)

  • XEROX CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Debies, Thomas P Webster, US 5 28
Lincoln, Timothy L Rochester, US 29 203
Marcell, Kevin F Webster, US 16 33

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