Rigid foams with improved insulation and physical properties
US5539006A · kind A · utility
4Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1993 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Dec 15, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/909
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Rigid polyurethane foams are produced by reacting an organic polyisocyanate with a sucrose-based polyether polyol in the presence of a catalyst and a blowing agent selected from hydrogen-containing chlorofluorocarbons, hydrogen-containing fluorocarbons, hydrocarbons and mixtures thereof. These foams are characterized by good demold and insulation properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.