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US 12,545,796 B2Granted
Ink compositions
AssigneeRicoh Company, Ltd.
InventorsJohn Hamilton, Andrew McVitie, Derek Smith, Samantha Davies
Life of this patent
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Abstract
An ink composition contains a semi-drying solvent; a pigment; an alkyd resin; and an amine-based polymeric dispersant. The composition contains 5 wt % or more of the alkyd resin, based on the total weight of the composition, and 5 wt % or more of the amine-based polymeric dispersant, based on the total weight of the composition.
Claims19
An ink composition, comprising:
- a semi-drying solvent;
- a pigment;
- an alkyd resin;
- and
- an amine-based polymeric dispersant,
- wherein the composition comprises 5 wt % or more of the alkyd resin, based on a total weight of the composition,
- wherein the composition comprises 5 wt % or more of the amine-based polymeric dispersant, based on the total weight of the composition, and
- wherein the composition comprises the semi-drying solvent in an amount of 64 to 80 wt %, based on the total weight of the composition.
5 more elements
A method of manufacturing an ink composition, comprising:
- providing a semi-drying solvent, a pigment, an alkyd resin, and a amine-based polymeric dispersant, to form the composition;
- wherein
- the alkyl resin is provided in an amount of 5 wt % or more, based on a total weight of the composition;
- and
- the amine-based polymeric dispersant is provided in an amount of 5 wt % or more, based on the total weight of the composition,
- wherein the composition comprises the semi-drying solvent in an amount of 64 to 80 wt %, based on the total weight of the composition.
3 more elements
Dependencies are inferred from the claim text.