Mineral wool insulation
US9469747B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 1, 2008 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Feb 27, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/7662
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of manufacturing a mineral fiber thermal insulation product comprises the sequential steps of: Forming mineral fibers from a molten mineral mixture; spraying a substantially formaldehyde free binder solution on to the mineral fibers, the binder solution comprising: a reducing sugar, an acid precursor derivable from an inorganic salt and a source of nitrogen; Collecting the mineral fibers to which the binder solution has been applied to form a batt of mineral fibers; and Curing the batt comprising the mineral fibers and the binder which is in contact with the mineral fibers by passing the batt through a curing oven so as to provide a batt of mineral fibers held together by a substantially water insoluble cured binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.