Photopolymerization process and composition employing a charge transfer complex and cationic photoinitiator
US6127447A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S522/913
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A radiation curable coating composition is provided and includes an effective amount of cationic photoinitiator, in combination with a charge transfer complex, the charge transfer complex comprising at least one electron withdrawing reactant component and at least one electron donating reactant component free radically reactive therewith, the electron withdrawing reactant component comprising an unsaturated nitrogen containing compound and the electron donating reactant component comprising an unsaturated compound having at least one vinyl ether group, the electron donating reactant component may be separate from or structurally incorporated within the electron withdrawing reactant component and an effective amount of a cationic photoinitiator. A photopolymerization process employing the composition is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.