Emulsion ink

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United States of America Patent

PATENT NO 7300507
APP PUB NO 20060100309A1
SERIAL NO

11267375

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Abstract

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A water-in-oil emulsion ink comprises a water phase and an oil phase, wherein the water phase comprises a carbon black pigment having a pH of less than 6. The emulsion ink maintains stable rheology on ageing.

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Patent Owner(s)

  • RICOH COMPANY, LTD.;RICOH UK PRODUCTS LTD

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adams, John Christopher Stirling, GB 8 19
Hamilton, John Perthshire, GB 79 1720

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