Thermoformable acoustical mat composition and method
US5093394A · kind A · utility
12Cited by
66References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1988 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Sep 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoformable acoustical mat composition having reduced quantities of ethylene vinyl acetate and elastomers and increased filler concentrations. The composition includes an intimate blend of 5% to 30% of an asphalt constituent; 4% to 15% of an elastomer binder constituent; 50% to 80% of a filler constituent and 1% to 8% of an ethylene co-polymer constituent. A method of melt mixing and extrusion forming thermoformable acoustical mat compositions is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.