Chain extended dendritic polyether
US7091308B2 · kind B2 · utility
8Cited by
0References
23Claims
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Key dates
| Filing date | Jan 22, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | May 24, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/2609
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A chain extended dendritic polyether comprising a dendritic core polymer and a chain extension bonded to said core polymer, which chain extended dendritic polyether optionally is at least partially chain terminated and/or partially functionalised. The core polymer is a polyhydric dendritic polyether and the chain extension is obtained by addition of at least one alkylene oxide to at least one hydroxyl group in said core polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.