Photoinitiators and oxygen scavenging compositions
US6139770A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 16, 1997 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | May 16, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An oxygen scavenging composition or system is provided comprising an oxygen scavenging material, a photoinitiator, and at least one catalyst effective in catalyzing an oxygen scavenging reaction, wherein the photoinitiator comprises a benzophenone derivative containing at least two benzophenone moieties. A film, a multi-phase composition, a multi-layer composition, a multi-layer film, an article comprising the oxygen scavenging composition, a method for preparing the oxygen scavenging composition, and a method for scavenging oxygen are also provided. Non-extractable benzophenone derivative photoinitiators and methods for preparing same are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.