Method for eliminating inhibitors of polymerization of monomer mixtures using an optimized alumina
US6288299A · kind A · utility
1Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for adsorption of polymerization inhibitors from ethylenically unsaturated monomers, in which these inhibitors are placed in contact with an alumina exhibiting a volume of pores of diameter greater than 100 .ANG. of at least 0.20 ml/g, preferably of at least 0.25 ml/g, still more preferably of at least 0.30 ml/g, and a specific surface of at least 30 m.sup.2 /g, preferably of at least 60 m.sup.2 /g, still more preferably of at least 80 m.sup.2 /g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.