Process for producing bio-resourced polymer-grade acrylic acid from glycerol
US8748545B2 · kind B2 · utility
2Cited by
11References
9Claims
0Family size
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Key dates
| Filing date | Sep 14, 2009 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Mar 1, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the manufacture of bioresourced polymer-grade acrylic acid from glycerol. The polymer grade acrylic acid produced has limited content of certain impurities harmful to polymerization processes, such as, total aldehydes, protoanemonin, maleic anhydride and nonphenolic polymerization inhibitors. The invention also relates to the use of the bioresourced acrylic acid obtained for manufacture of superabsorbents or for manufacture of polymers or copolymers using amide or ester derivatives of the bioresourced acrylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.