Method for preparing bisphenol phosphate hydroxyl aluminum salt nucleating agent
US12084470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Jan 18, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/65744
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing a bisphenol phosphate hydroxyl aluminum salt nucleating agent is provided, which adopts organic aluminum alcoholate as raw materials to prepare bisphenol phosphate hydroxyl aluminum salt. In prior art, a neutralization reaction of bisphenol phosphate and sodium hydroxide is firstly performed, so as to prepare bisphenol phosphate sodium salt; then a double decomposition reaction of sodium salt and inorganic aluminum salt is performed to prepare the bisphenol phosphate hydroxyl aluminum salt. The present invention combines the two-step reaction in prior art into the one-step reaction of phosphate and organic aluminum alcoholate for synthesizing the bisphenol phosphate hydroxyl aluminum salt, thereby simplifying the production process, improving the production efficiency, shortening the reaction time, and improving the product quality. Moreover, during the production process of the preparation method provided by the present invention, no brine waste is generated, so that the production process is environment-friendly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.