Process for producing low molecular weight ethylene- and alpha-olefin-based materials
US9522855B2 · kind B2 · utility
14Cited by
18References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention generally relates to a process that prepares polyethylenes, poly-α-olefins or poly(co-ethylene-α-olefin) having backbone weight average molecular weights less than 2500 daltons. The process uses a metal-ligand complex as a precatalyst and can be carried out at temperatures ranging from 30° C. to 300° C. The relatively low molecular weight of the products enables improved viscosity control for a wide variety of applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.