Method of controlling polymer molecular weight and structure
US6271340A · kind A · utility
14Cited by
1References
2Claims
0Family size
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Key dates
| Filing date | Nov 5, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Nov 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention concerns the preparation of polymers of low polydispersity and/or controlled molecular weight and architecture employing living free radical polymerization initiated by an alkoxyamine initiator or nitroxide plus, optionally a free radical initiator, the polymer produced thereby; selected nitroxide and alkoxyamine initiators; and a process for making the initiators; the polymeric products being useful in protective coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.