Oligomeric aminoketones and their use as photoinitiators
US10563073B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Apr 27, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/225
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to photoactive oligomeric aminoketones of general Formulae I and II, for compositions and inks curable with ultraviolet (UV) light. The oligomeric aminoketones of the general Formula I are made by condensation of aminoketones with aldehydes, and aminoketones of the general Formula II are made by acylation of aromatic amines with phthalic anhydride, followed by esterification with a polyol. The aminoketones provide good curability of energy curable coatings and inks with UV-A light, and are proposed for photoinitiator systems for low migration inks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.