Production of hydrofined hydrocarbon resins
US4629766A · kind A · utility
28Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1985 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Jun 13, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved method for making hydrogenated petroleum resins by subjecting the resin to hydrogenation in the presence of a sulfided nickel (2 to 10 wt. %)--tungsten (10 to 25 wt. %) catalyst supported on a gamma-alumina having fresh catalyst surface area ranging from 120 to 300 m.sup.2 /g under a hydrogen pressure of 150 to 200 atmospheres and at a temperature in the range 250.degree. C. to 330.degree. C. and the resins so produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.