Maintenance liquid and maintenance method
US11629210B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 3, 2020 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | May 27, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a maintenance liquid, which is used in maintenance of a device equipped with a discharge head for discharging an ultraviolet ray curable-type composition containing the acyl phosphine oxide-based photopolymerization initiator toward an attachment object, including a polymerizable compound in which a saturation solubility of an acyl phosphine oxide-based photopolymerization initiator at 20° C. is equal to or greater than 5.0% by mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.