Sizing composition for mineral wool, comprising lignosulfonate and a carbonyl compound, and resulting insulating products
US10435329B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 1, 2016 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/162
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A sizing composition for insulating products based on mineral wool, in particular glass or rock wool, which includes at least one ammonium lignosulfonate or alkali metal or alkaline earth metal salt of lignosulfonic acid, and at least one carbonyl compound of formula: R—[C(O)R1]x (I) in which: R represents a saturated or unsaturated and linear, branched or cyclic hydrocarbon radical, a radical including one or more aromatic nuclei which consist of 5 or 6 carbon atoms, a radical including one or more aromatic heterocycles containing 4 or 5 carbon atoms and an oxygen, nitrogen or sulfur atom, it being possible for the R radical to contain other functional groups, in particular hydroxyl or alkoxy groups, especially methoxy groups, R1 represents a hydrogen atom or a C1-C10 alkyl radical, and x varies from 1 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.