Multimodal polymers by controlled radical polymerization in the presence of alkoxyamines
US6646079B2 · kind B2 · utility
9Cited by
10References
24Claims
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Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Apr 9, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
For the preparation of a multimodal polymer at least one monomer is subjected to free radical polymerization in the presence of several alkoxyamines comprising the sequence of formula: in which RL is a monovalent radical exhibiting a molar mass of greater than 15, A represents the core of the alkoxyamine and n is a non-zero integer, the alkoxyamines exhibiting different values of n.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.