Block copolymers and method for making same
US8222346B2 · kind B2 · utility
6Cited by
47References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2004 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a novel block copolymer containing a controlled distribution copolymer block of a conjugated diene and a mono alkenyl arene, where the controlled distribution copolymer block has terminal regions that are rich in conjugated diene units and a center region that is rich in mono alkenyl arene units. Also disclosed is a method for manufacture of the block copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.