Aromatic sulfonic acids, amines, and nitrophenols in combination with nitroxyl radical-containing compounds or C-nitrosanilines as polymerization inhibitors
US7696290B2 · kind B2 · utility
2Cited by
34References
6Claims
0Family size
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Key dates
| Filing date | Jun 28, 2005 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C309/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein is a method for inhibiting and retarding the premature polymerization and the polymer growth of vinyl aromatic monomers wherein the method comprises adding to said monomers an effective amount of an inhibitor and retarder blend comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.