AQUEOUS MARKING INK COMPOSITION

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United States of America Patent

SERIAL NO

13516972

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Abstract

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An aqueous marking ink composition that contains at least 1 to 20% by mass of a resin which is water-soluble and has a hydrophobic part in a molecule thereof, a colorant containing at least 5 to 30% by mass of titanium oxide, 0.05 to 2% by mass of at least one selected from acetylene glycols, acetylene alcohols or derivatives thereof, 1 to 20% by mass of a water-soluble solvent having a vapor pressure of 5 mmHg or less at 25° C. and water. The composition can provide good wetting property to a non-absorbing surface of metals, resins and the like stained with oils, can write smoothly thereon at a low viscosity without being repelled to make it possible to obtain drawn lines having a high masking property and a high fixing property, and is readily redispersed by a simple stirring operation.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI PENCIL COMPANY LIMITEDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Yoshihito Fujioka-shi, JP 48 1183
Iwasa, Atsushi Fujioka-shi, JP 8 62
Toi, Yoko Fujioka-shi, JP 1 8

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