Intumescent sheet
US5384188A · kind A · utility
69Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1992 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Nov 17, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/697
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A flexible, resilient, intumescent mat material comprising fiber, binder, and an intumescent agent which includes a mixture of unexpanded vermiculite and expandable graphite undergoes intumescence at a lower temperature, with an enhanced degree of expansion and with a lesser degree of contraction upon prolonged heating. The intumescent mat can be employed in catalytic converters for motor vehicles and as a firestop material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.