Gypsum board comprisiing linings made of glass fiber non-wovens coated with an inorganic cement binder
AssigneeGebruder Knauf Westdeutsche Gipswerke KG
InventorsHarro Seth, Gerhard Neuhauser, Claus-Peter Berneth
Life of this patent
Estimating the term…
Abstract
A gypsum board comprises linings made of coated non-woven fiberglass mats having surfaces turned away from the gypsum core of the fiberglass mats which have been coated with an inorganic binder at least partially set with water. Preferably, quick-setting mixtures comprising cement, .alpha.-hemihydrate and ultra-fine silica are used which are dimensionally stable during setting as well as later on.
Claims4
A gypsum board comprising a gypsum core and at least one lining comprising a coated non-woven fiberglass mat coextensive with said core, wherein only the surface of the non-woven fiberglass mat opposite the gypsum core has been coated with an inorganic binder which has been at least partially set with water, wherein said inorganic binder is selected from the group consisting of quick-setting cement, quick-setting cement mixture and a highly sulfate-resistant cement.
Dependencies are inferred from the claim text.