Process for producing methyl methacrylate having reduced biacetyl content
US9067880B2 · kind B2 · utility
0Cited by
4References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 13, 2011 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Nov 27, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention provides a process for reducing biacetyl in alpha-, beta-unsaturated carboxylic acid esters, particularly in acrylic or methacrylic (hereinafter “(meth)acrylic”) esters, which comprise low levels of weak acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.