Process for the production of polyisobutenes
US4306105A · kind A · utility
12Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1980 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Sep 22, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2521/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for selectively producing liquid polyisobutene contacting a feed stream containing mixed butenes with a dry chlorinated alumina catalyst at a temperature of from about -15.degree. to about 50.degree. C. wherein the chlorinated alumina contains from about 2 to 20% by weight of chlorine and the alumina has a purity of at least 99% and a surface area greater than 150 m.sup.2 /g with at least 10% of the pores having a mean diameter larger than 200A and recovering polyisobutenes having a molecular weight between about 280 and 4000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.