Device for continuously producing poly(arylene sulfide) and method for continuously producing poly(arylene sulfide)
US10538629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Feb 28, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided are a device for continuously producing poly(arylene sulfide) (hereinafter, referred to as PAS) and a method for continuous PAS production with which resource savings, energy savings, and a reduction in equipment cost are rendered possible. The device for continuous PAS production according to the present invention includes a housing chamber for housing a plurality of reaction cells; wherein the housing chamber is supplied with at least an organic amide solvent, a sulfur source, and a dihalo aromatic compound. In the reaction cells, the sulfur source is polymerized with the dihalo aromatic compound in the organic amide solvent to form a reaction mixture. The reaction cells communicate with each other through a gas phase within the housing chamber. The reaction cells are sequentially connected, and the reaction mixture sequentially moves to each reaction cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.