Process for preparing light colored petroleum resins and resins produced thereby
US4562233A · kind A · utility
3Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1985 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Jan 14, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F240/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Petroleum resins of lightened color while retaining satisfactory melting point and compatiblity are provided by a process which comprises heat soaking a petroleum cracking or reforming fraction containing cationically polymerizable hydrocarbons and from 2 to more than 0.5 weight percent of cyclodienes until the cyclodiene content is no more than 0.5 weight percent distilling said heat soaked petroleum fraction and polymerizing said distilled petroleum fraction in the presence of a polymerization catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.