Ink compositions

US12545796B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12545796-B2
Application numberUS-202017755895-A
CountryUS
Kind codeB2
Filing dateNov 25, 2020
Priority dateNov 27, 2019
Publication dateFeb 10, 2026
Grant dateFeb 10, 2026

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

The invention claimed is: 1 . 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. 2 . The ink composition according to claim 1 , wherein the composition comprises both the alkyd resin and the amine-based polymeric dispersant in the same amount. 3 . The ink composition according to claim 1 , wherein the composition comprises the alkyd resin in an amount of 7 wt % or more, based on the total weight of the composition. 4 . The ink composition according to claim 1 , wherein the composition comprises the amine-based polymeric dispersant in an amount of 7 wt % or more, based on the total weight of the composition. 5 . The ink composition according to claim 1 , wherein the semi-drying solvent has an iodine value of 120 to 150. 6 . The ink composition according to claim 1 , wherein the semi-drying solvent comprises a first ester, which is an ester of a di-unsaturated fatty acid and a monohydric alcohol. 7 . The ink composition according to claim 6 , wherein the composition comprises the first ester in an amount of 32 wt % or more, based on the total weight of the composition. 8 . The ink composition according to claim 1 , wherein the pigment is a black pigment. 9 . The ink composition according to claim 1 , wherein the alkyd resin comprises a second ester, which is an ester of a di-unsaturated fatty acid and a polyhydric alcohol. 10 . The ink composition according to claim 1 , wherein the composition comprises the semi-drying solvent in an amount of 70 to 75 wt %, based on the total weight of the composition. 11 . The ink composition according to claim 1 , wherein the composition comprises the pigment in an amount of 10 to 18 wt %, based on the total weight of the composition. 12 . 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. 13 . The method according to claim 12 , wherein the composition comprises the semi-drying solvent in an amount of 70 to 75 wt %, based on the total weight of the composition. 14 . The ink composition according to claim 1 , where the semi-drying solvent comprises an ester. 15 . The ink composition according to claim 1 , wherein the composition comprises 5 to 9 wt % or more of the alkyd resin, based on the total weight of the composition. 16 . The ink composition according to claim 1 , wherein the composition comprises 5 to 9 wt % or more of the amine-based polymeric dispersant, based on the total weight of the composition. 17 . The ink composition according to claim 15 , wherein the composition comprises the pigment in an amount of 10 to 18 wt %, based on the total weight of the composition. 18 . The ink composition according to claim 1 , wherein the semi-drying solvent comprises a methyl ester. 19 . The ink composition according to claim 1 , where the semi-drying solvent consists of one or more esters.

Assignees

Inventors

Classifications

  • by printing code marks (applying code marks to labels B65C9/46; marking or coding completed packages B65B61/26) · CPC title

  • based on non-aqueous solvents · CPC title

  • C09D11/105Primary

    Alkyd resins · CPC title

  • characterised by the pigment · CPC title

  • characterised by the solvent · CPC title

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Frequently asked questions

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What does patent US12545796B2 cover?
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.
Who is the assignee on this patent?
Hamilton John, Mcvitie Andrew, Smith Derek, and 2 more
What technology area does this patent fall under?
Primary CPC classification C09D11/105. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Feb 10 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).