Release agent composition
US6458461B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a release agent composition useful in an electrophotographic process. The composition is comprised of certain heat-stable grafted silicone interpolymers. The interpolymers have a melting point such that it is in the form of a liquid on a hot fuser roll, but solidifies to a waxy solid at room temperature. The compositions of the invention were found to reduce transparency streaking in wiper pad systems and when used in felt roll applications, were found to be equal to silicone oil in transmission ratio and transparency streaking. Accordingly, the release agent compositions are especially efficacious in duplex and transparency printing. The release agent compositions of the present invention also exhibit superior release performance and facilitate clean release of toner from fuser rolls in an electrophotographic imaging process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.