Diphenol and phenol prills and method for obtaining the same
US11046631B2 · kind B2 · utility
1Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Feb 21, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a novel solid form of diphenol compound. A process for the preparation of diphenol prills having a spherical shape is disclosed. Said process comprising providing a molten composition comprising from 50 to 100 wt. % of a diphenol compound or a mixture of at least two diphenol compounds, and less than 0.1 wt. % of water; forcing said molten composition through at least one droplet generator means to form droplets; and cooling said droplets to form solid diphenol prills. The diphenol prills obtainable by said process are also one subject-matter of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.