Protected aminofunctionalized polymerization initiators and methods of making and using same
US6875876B2 · kind B2 · utility
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Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Dec 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecting groups can be the same as the first protecting group. Alternatively, the second protecting group can be different from the first protecting group, in which case it is selected to have differential stability to agents used to remove the aralkyl, methyl, allyl or tertiary alkyl protecting group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.