Dry erase ink with improved drying time
US-2020048483-A1 · Feb 13, 2020 · US
Alcohol-based dry-erasable ink
US11286397B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11286397-B2 |
| Application number | US-201816606133-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2018 |
| Priority date | Apr 18, 2017 |
| Publication date | Mar 29, 2022 |
| Grant date | Mar 29, 2022 |
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Abstract
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An alcohol-based dry-erasable ink for a writing instrument including, as separation agent, a mixture of glycerol, glycol and pentaerythritol ester.
First claim
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The invention claimed is: 1. An alcohol-based dry-erasable ink for a writing instrument comprising, as separation agent, a mixture of glycerol, glycol and a pentaerythritol ester, wherein the pentaerythritol ester is pentaerythrityl tetraethylhexanoate. 2. The dry-erasable ink according to claim 1 , wherein the pentaerythritol ester content is between 0.1 and 25% by weight in relation to a total weight of the ink. 3. The dry-erasable ink according to claim 1 , wherein the glycol content is between 0.1% and 5% by weight in relation to a total weight of the ink. 4. The dry-erasable ink according to claim 1 , wherein the glycerol content is between 0.1% and 10% by weight in relation to a total weight of the ink. 5. The dry-erasable ink according to claim 1 , wherein the alcohol is an alcohol including R 4 —OH in which R 4 represents a C 1 -C 6 alkyl group selected from the group consisting of ethanol, propanol and mixtures thereof. 6. The dry-erasable ink according to claim 1 , wherein the alcohol content is between 40% and 90% by weight in relation to a total weight of the ink. 7. The dry-erasable ink according to claim 1 , further including a pigment, a resin and additives. 8. The dry-erasable ink according to claim 7 , wherein the additive is selected from the group consisting of surfactants, manufacturing additives, denaturing agents, marker tip drying retarders and mixtures thereof. 9. The dry-erasable ink according to claim 7 , wherein the pigment content is between 0.1% and 10% by weight in relation to a total weight of the ink. 10. The dry-erasable ink according to claim 7 , wherein the resin content is between 0.1% and 10% by weight in relation to a total weight of the ink. 11. The dry-erasable ink according to claim 7 , wherein the additive content is between 0.1% and 10% by weight in relation to a total weight of the ink. 12. A writing instrument including a fibrous tip and comprising a dry-erasable ink according to claim 1 . 13. An alcohol-based dry-erasable ink for a writing instrument comprising a separation agent, the separation agent consisting essentially of glycerol, glycol, and a pentaerythritol ester, wherein the pentaerythritol ester includes pentaerythrityl tetraethylhexanoate, pentaerythrityl tetracaprylate, pentaerythrityl tetracaprate, or mixtures thereof. 14. The dry-erasable ink according to claim 13 , wherein the glycol is triethylene glycol. 15. The dry-erasable ink according to claim 13 , wherein the pentaerythritol ester content is between 0.1 and 25% by weight in relation to a total weight of the ink. 16. The dry-erasable ink according to claim 13 , wherein the glycol content is between 0.1% and 5% by weight in relation to a total weight of the ink. 17. An alcohol-based dry-erasable ink for a writing instrument comprising a separation agent, the separation agent comprising a mixture of glycerol, glycol, and a pentaerythritol ester, wherein the pentaerythritol ester includes pentaerythrityl tetraethylhexanoate, pentaerythrityl tetracaprylate, pentaerythrityl tetracaprate, or mixtures thereof. 18. The dry-erasable ink according to claim 17 , wherein the glycerol content is between 0.1% and 10% by weight in relation to a total weight of the ink. 19. The dry-erasable ink according to claim 17 , wherein the glycol content is between 0.1% and 5% by weight in relation to a total weight of the ink. 20. The dry-erasable ink according to claim 17 , wherein the pentaerythritol ester content is between 0.1 and 25% by weight in relation to a total weight of the ink.
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- What does patent US11286397B2 cover?
- An alcohol-based dry-erasable ink for a writing instrument including, as separation agent, a mixture of glycerol, glycol and pentaerythritol ester.
- Who is the assignee on this patent?
- SOCIéTé BIC
- 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 Mar 29 2022 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).