Dispersion and method for producing same
US5504129A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G7/0046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The specification discloses an aqueous dispersion for coatings consisting essentially of water and a water dispersible component, wherein the water dispersible component is provided by reacting maleic anhydride with a rosin ester to provide a maleated rosin ester, adding wax and preferably also an ethylene vinyl acetate copolymer to the maleated rosin ester, and adding a tertiary amino alcohol to the mixture to yield the water dispersible component as a reaction product thereof. When used in a coating formulation for paper, clay and/or latex may be added to the formulation. In one preferred embodiment, the dispersion is applied as a coating to paper to enhance toner adhesion to the surface of the paper while also providing a relatively low friction surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.