Actinic radiation curable compositions including semiconductor metal oxide materials
US11254830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Jan 9, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2296
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described herein are inks and coating compositions comprising semiconductor metal oxides and composites thereof, which are natural environmentally sustainable materials that may be recycled and/or reused indefinitely. Semiconductor metal oxides offer an alternative to relatively more toxic, non-sustainable, photo and heat-degrading, migrating traditional photoinitiator agents used in actinic radiation curable compositions. The semiconductor metal oxides and composites thereof absorb visible or UV-light as photocatalysts and/or semiconductors, or absorb electron beam radiation, forming radicals for radical events as polymerization reactions and color enhancement events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.