Ink set
US-2015376432-A1 · Dec 31, 2015 · US
Aqueous ink composition for writing instruments
US10501649B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10501649-B2 |
| Application number | US-201615550189-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2016 |
| Priority date | Feb 19, 2015 |
| Publication date | Dec 10, 2019 |
| Grant date | Dec 10, 2019 |
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- Title
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- Abstract
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Abstract
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Provided is an aqueous ink composition for a writing instrument which is excellent in a drying property of drawn lines and a low temperature stability of the ink while inhibiting the pen tip from drying and which prevents the drawn lines from causing feathering and strike-through. The aqueous ink composition for a writing instrument described above contains at least a colorant, trimethylglycine, pentaerythritol, 10% by mass or less of a water-soluble organic solvent and water.
First claim
Opening claim text (preview).
What is claimed is: 1. An aqueous ink composition for a writing instrument containing at least a colorant, 1.5 to 11% by mass of trimethylglycine, 1.5 to 5.5% by mass of pentaerythritol, 10% by mass or less of a water-soluble organic solvent, based on a total amount of the ink composition, and water. 2. A writing instrument charged with the aqueous ink composition for a writing instrument as described in claim 1 .
Assignees
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Classifications
with writing-points comprising felt · CPC title
Ball-point pens ({B43M11/085 takes precedence}; multiple-point writing implements B43K27/00) · CPC title
Pens with writing-points other than nibs or balls (brushes with reservoir for supplying substances A46B11/00) · CPC title
- C09D11/16Primary
Writing inks · CPC title
Pens with ink reservoirs in holders, e.g. fountain-pens (nibs or writing-points with ink reservoirs B43K1/01; ball-point pens B43K7/00; pens with writing-points other than nibs or balls B43K8/00; multiple-point writing implements B43K27/00) · CPC title
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- What does patent US10501649B2 cover?
- Provided is an aqueous ink composition for a writing instrument which is excellent in a drying property of drawn lines and a low temperature stability of the ink while inhibiting the pen tip from drying and which prevents the drawn lines from causing feathering and strike-through. The aqueous ink composition for a writing instrument described above contains at least a colorant, trimethylglycine…
- Who is the assignee on this patent?
- Mitsubishi Pencil Co
- What technology area does this patent fall under?
- Primary CPC classification C09D11/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 10 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).