End-capped polymer chains, star and graft copolymers, and process of making same
US5030695A · kind A · utility
13Cited by
33References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1988 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Sep 12, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2020/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Ziegler-Natta catalyzed polymer chains are end capped with at least one functional group-containing unit which is otherwise essentially absent from said polymer chain. The chains can be grafted to form graft copolymers and star copolymers. The compositions are useful as oil additives and in general purpose elastomer as well as thermoplastic polymer compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.