Diesters of polymerized fatty acids useful in formulating hot-melt inks
US5645632A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 1996 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Feb 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Solid diesters for hot-melt inks are prepared by reaction of polymerized fatty acid with long chain primary monohydric alcohols, optionally in the presence of diamine. The long chain alcohols have at least about 20 carbon atoms, and preferably have 24 or more carbon atoms. The esterification of liquid polymerized fatty acid with monohydric alcohol provides a diester that is solid at room temperature and has a melting point of less than about 150.degree. C. The diester can be formulated with colorants and/or other image-producing materials to provide an ink for hot-melt printing, e.g., hot-melt ink jet, gravure or intaglio printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.