Patent · US Active

Powdery composition based on a calco-magnesian compound

US8048217B2 · kind B2 · utility

1Cited by

7References

10Claims

0Family size

Assignee

S.A. Lhoist Recherche et Développement · BE

Inventors

Amandine Gambin · Lure, FR
Alain Laudet · Namur, BE
Olivier Francoisse · Céroux-Mousty, BE

Key dates

Filing date	Dec 14, 2004
Grant date	Nov 1, 2011
Priority date	—
Expiry date	Mar 17, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a powder composition based on a calcium/magnésium compound having formula (I), xCaA.(1−x)[yMgA+(1−y)MgO], in which A is a group ═(OH)2 or ═CO3 and x and y are mole fractions where 0<x=1 and 0=y=1, containing an amount of mineral solid flow agent that is less than 5 wt.-% of the composition, said agent being selected from the group containing vermiculite, perlite, diatomaceous earth and silica, in the form of particles having a size greater than 90 μm.

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