Method of preventing scorch in a polyurethane foam and product thereof
US4544680A · kind A · utility
0Cited by
17References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Dec 17, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Incorporation of from about 0.01% to about 5% of an N-alkanoyl-N,N'-dialkyl-phenylenediamine compound (e.g. N-heptanoyl-N,N'-di-sec-butyl-para-phenylenediamine) in a flame retarded polyurethane foam formulation stabilizes the formulation against scorching as the foam is formed therefrom and also improves the indentation load deflection of the foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.