Vinyl crosslinked oxygen scavenging compositions and methods of preparing the same
US6572783B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1334
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosed invention is directed to an oxygen scavenging composition that comprises at least one oxygen scavenging polymer and at least one vinyl crosslinker. The oxygen scavenging polymer comprises a polymeric backbone, at least two backbone crosslinking functional groups that are carbon-carbon double bonds in the backbone and at least one cyclic organic moiety having from 5 to 9 carbon atoms in its ring, and at least one carbon-carbon double bond in its ring. The vinyl crosslinker comprises at least two functional groups that are capable of reacting with the crosslinking functional groups of the oxygen scavenging polymer. Vinyl crosslinkers that can be used include styrene and methyl acrylate, among others.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.