Dispersions containing living radicals
US7375175B2 · kind B2 · utility
0Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2005 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Jan 15, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J153/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A dispersion of polymer particles, the particle containing, on average, one or more living radicals each, the radicals not being chemically protected. Further disclosed is a free radical polymerization process resulting in a dispersion containing polymer particles having on average one or more living radicals. The process involves carefully regulating the polymerization conditions to produce small size particles under monomer-starved conditions containing, on average, more than one living radical in every particle. These living polymer radicals can be further reacted to form polymers with a controlled architecture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.