Biodegradable vehicle/carrier for printing ink
US8252105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Aug 25, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Embodiments of the present invention provide a composition useful as an additive to a printing ink. In one embodiment a composition is used that includes a biologically derived base material formed from one or more saturated or unsaturated straight or branched chain triglycerides or combinations thereof, wherein the triglycerides are partially to fully hydrogenated and have a viscosity between about 50 and about 200,000 centipoise at temperatures about 72 degrees Fahrenheit. In another embodiment, the composition further includes a finely divided additive selected from the group consisting of polytetrafluoroethylene or hydrogenated triglycerides in an intimate admixture with the base material. Other aspects relate to a method of making an ink additive and method for printing paper stock by letter press or lithography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.