Method of producing acoustical fiberboard
US4190492A · kind A · utility
3Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1977 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Dec 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/09
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved method for producing acoustical fiberboard, which method comprises adding agglomerate articles formed from an aqueous composition comprising fiberboard dust, a glactomannan gum or glactomannan gum derivative, and a crosslinking agent to an aqueous fiberboard slurry, is disclosed. The resulting acoustical fiberboard exhibits excellent sound absorption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.