Synthesis of high molecular weight PEO using non-metal initiators
US9035019B2 · kind B2 · utility
2Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Nov 21, 2012 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Mar 24, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/2675
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A new synthetic method to prepare high molecular weight poly(ethylene oxide) with a very narrow molecular weight distribution (PDI<1.5) is described. The method involves a metal free initiator system, thus avoiding dangerous, flammable organometallic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.