Polyisocyanurate foam with chloropropane blowing agent
US5064872A · kind A · utility
22Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Mar 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/902
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A polyisocyanurate foam or a with polyurethane modified polyisocyanurate foam having a mainly closed cell structure and also a method for preparing this foam, the latter comprising closed cells wherein chloropropane, preferably 2-chloropropane, whether or not with another gas, is enclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.