Pigmented inkjet ink with high acid number acrylic resin
US11702558B2 · kind B2 · utility
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10References
20Claims
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Inventors
Key dates
| Filing date | Sep 25, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Apr 24, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This specification discloses non-aqueous solvent, pigmented ink formulations that are suitable for the electronic and aerospace industries and form printed marks that are resistant to smearing and dissolution by organic solvents commonly used in overcoatings in this industry and others. These ink formulations are based on use of an acidic resin with an inherent acid value of at least about 25 mg KOH/g, preferably at least partially neutralized by a quaternary ammonium hydroxide and/or alcohol amine acid neutralizing or modifying agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.