Amine antioxidants as antiscorch agents in flame retarded polyurethane foams
US4178420A · kind A · utility
5Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Jul 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The discoloration of low density polyurethane foams produced with certain flame retardants is reduced by incorporating certain amine antioxidants into the foam. The amine antioxidants can be employed by admixing with the flame retardant from about 0.25 to about 5.0 percent of the amine antioxidant by weight of the flame retardant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.