Expandable vinyl aromatic polymers comprising platelet needle coke particles
US9452550B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
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Key dates
| Filing date | Dec 19, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2491/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Expandable vinyl aromatic polymers may contain comminuted needle petroleum coke with a polymodal particle size distribution. Foams obtained from such expandable vinyl aromatic polymers have a reduced thermal conductivity at a reduced foam density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.