Piezo-jettable varnish composition
US10947399B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Apr 21, 2017 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Apr 21, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/107
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Herein is described a piezo-jettable varnish composition comprising a latex polymer having a weight averaged molecular weight Mw of greater than about 50 000, a polymeric salt derived from an acidic polymer having a weight averaged molecular weight Mw in the range of about 1000 to about 50 000, water, and a co-solvent, wherein, the latex polymer and polymeric salt are present in amounts such that the ratio of latex polymer to polymeric salt by weight is in the range of greater than about 1:1 to about 8:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.