Process for the production of expandable vinyl aromatic polymer granulate having decreased thermal conductivity
US11267170B2 · kind B2 · utility
2Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2019 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an extrusion process for the production of expandable vinyl aromatic polymer granulate comprising mixing first and second additives with first and second polymer components, respectively, in dedicated mixers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.