Petroleum resins and their production with supported catalyst
US6403743B1 · kind B1 · utility
11Cited by
21References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jul 19, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F240/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Petroleum resins are produced by using a supported halide based Lewis acid polymerization catalyst wherein the Lewis acid is chemically bound to the support and free hydrogen halide and/or alkane formed by the reaction of the Lewis acid with the support has been removed. The more active catalysts are useful with both pure monomer and mixed feeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.