Process for the production of a sulfone polymer agglomerate from the recovery of expanded sulfone polymer
US11007676B2 · kind B2 · utility
0Cited by
3References
8Claims
0Family size
Inventors
Key dates
| Filing date | Jan 18, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jan 24, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the production of a polymeric agglomerate obtained from expanded sulfone polymer recovered from extrusion or injection molding processes of sulfone polymer, the agglomeration of said expanded sulfone polymer being effected in said process. With respect to the known art for the production of expanded sulfone polymers that use starting virgin sulfone polymers, the present invention offers the advantage of providing a recovered expanded sulfone polymer which can be used as starting material together with the corresponding virgin sulfone polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.