Stabilization of monomers by compositions based on alkylhydroxylamines
US6761833B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Feb 4, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Jun 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B63/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Vinyl monomers are stabilized by a composition which includes an alkyl hydroxyl amine and a sulfide compound or at least two alkyl hydroxyl amines and a phenolic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.