Patent · US Expired

Mineral wool composition

US6284684A · kind A · utility

34Cited by

7References

28Claims

0Family size

Assignee

Isover Saint-Gobain · FR

Inventors

Serge Vignesoult · Paris, FR
Fabrice Lafon · Paris, FR
Jean-Luc Bernard · Clermont, FR

Key dates

Filing date	Sep 12, 2000
Grant date	Sep 4, 2001
Priority date	—
Expiry date	Sep 12, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C2213/02
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Mineral wool capable of dissolving in a physiological medium, which mineral wool comprises the constituents below in the following percentages by weight: SiO.sub.2 39-55%, preferably 40-52% Al.sub.2 O.sub.3 16-27%, " 16-25% CaO 3-35%, " 10-25% MgO 0-15%, " 0-10% Na.sub.2 O 0-15%, " 6-12% K.sub.2 O 0-15%, " 3-12% R.sub.2 O (Na.sub.2 O + K.sub.2 O) 10-17%, " 12-17% P.sub.2 O.sub.5 0-3%, " 0-2% Fe.sub.2 O.sub.3 0-15%, B.sub.2 O.sub.3 0-8%, " 0-4% TiO.sub.2 0-3%, and in that MgO is between 0 and 5%, especially between 0 and 2%, when R.sub.2 O.ltoreq.13.0%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.