Process for inhibiting polymerization of an aromatic vinyl compound
US8246858B2 · kind B2 · utility
2Cited by
5References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Jul 16, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F12/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for inhibiting polymerization of an aromatic vinyl compound during the stage of producing, purifying, storing or transporting the aromatic vinyl compound which not only inhibits an initial polymerization but also inhibits polymerization efficiently over a long period of time and which is excellent in the handleability. The process involves the step of adding a nitrogenous aromatic compound in combination with a sulfonic acid compound to the aromatic vinyl compound during the production, purification, storage of transportation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.