Fire resistant vinyl resin with metal salt of phenolic resin
US3943188A · kind A · utility
0Cited by
7References
10Claims
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Assignee
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Key dates
| Filing date | Oct 15, 1973 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Oct 15, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Vinyl halide resin compositions having improved fire resistance are formed by the introduction into said compositions of a small amount of a reactive hydroxy group-containing polyvalent metal salt of a phenol-aldehyde resin of the novolac type. The resulting vinyl halide resins evidence increase charring of the surface when exposed to heating by a flame or undergoing combustion, the surface char acting as a barrier to heat transfer from the flame and retarding the flow of volatile gases from the pyrolyzing resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.