Processes for the crystallization of 2,2,4,4-tetramethylcyclobutanediol
US7989667B2 · kind B2 · utility
4Cited by
2References
41Claims
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Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Sep 4, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a novel process for the continuous crystallization of a mixture of cis-2,2,4,4-tetramethylcyclobutanediol and trans-2,2,4,4-tetramethylcyclobutanediol dissolved in a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.