Prepolymer composition for insulating foams
US6054499A · kind A · utility
14Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1995 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Oct 16, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A prepolymer composition for producing polyurethane insulating foams from pressure tanks which consists of a prepolymer component with at least one PU prepolymer with a content of NCO groups of 4 to 20 wt % and usual additives, as well as a propellant component, with a content of 0.01 to 2 wt %, based on the prepolymer component, of polybutadiene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.