Polymer life enhancement in oxyanion-catalyzed polymerization
US4622372A · kind A · utility
19Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Feb 20, 1986 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Feb 20, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The duration of "livingness" in group transfer polymerization with oxyanion catalysts is enhanced by the presence of agents such as acetonitrile or silylated acetonitrile, resulting in higher molecular weight and/or lower polydispersity in the resulting polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.