Intumescent material
US4945015A · kind A · utility
37Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1989 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Mar 13, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K21/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An intumescent material comprises expandible graphite in a polymeric binder. The binder may be a flexible or elastomeric binder or a formaldehyde resin. A suitable flexible binder is a polymer selected from vinyl acetate polymers, styrene polymers, vinyl chloride polymers, acrylic polymers, vinyl butyral polymers, melamine/urea/phenol formaldehyde resins, polyesters and phenolic resins. A suitable elastomeric binder is a rubber. A suitable formaldehyde resin is melamine formaldehyde resin, urea formaldehyde resin, phenol formaldehyde resin or resorcinol formaldehyde resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.