Polystyrene foam made with only carbon dioxide as a blowing agent and a process for making the same
US5266605A · kind A · utility
24Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1993 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Jun 17, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2325/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is a styrenic polymer foam blown with solely carbon dioxide and a process for making that styrenic polymer foam. Foam sheet made by this process is especially useful for thermoforming purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.