Preparation of block copolymers and products therefrom
US4169115A · kind A · utility
18Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1978 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | May 22, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F293/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Block copolymers of AB or ABA configuration are prepared by anionically polymerizing one component, terminating the living polymer with sulfur or an episulfide and completing polymerization of the remaining block portion by free-radical polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.