Light-colored rosin esters and adhesive compositions
US6562888B1 · kind B1 · utility
8Cited by
34References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1998 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09F1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Rosin esters that are both light-colored and color stable may be produced by reacting rosin with an organic compound containing two or more hydroxyl groups each separated from each other by at least four carbon atoms. With appropriate choices for the esterification catalyst and antioxidant(s), the rosin ester may be useful as a tackifier, and can be formulated into an adhesive composition. The adhesive compositions will further comprise an appropriate adhesive polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.