US 7,399,718 B2 · Water-repellent and vapor-permeable multilayer material for outdoor applications

Abstract

The invention relates to a multilayer material comprising (a) a first layer that consists of plaster or that substantially consists of plaster, and (b) at least one second layer, comprising a sandwich textile fiber material. The fibers of said material are interlinked in a mechanically stable manner, are incombustible and weather-proof and the interspaces are filled with a finely porous material. The second layer has a diffusion-equivalent air layer thickness of not more than 2.0 m and is water-impermeable at a water pressure of at least 100 mm water column. The inventive material can be used outdoors due to its properties. The invention further relates to methods for producing such a material.

Claims5

Dependent claims

A multilayer material comprising:

(a) a first layer which consists of gypsum or in essential parts of gypsum,
(b) at least one second layer, comprising a layered textile fiber material with fibers which are joined in a mechanically stable manner among one another, which are not flammable and which are weather-resistant, and its intermediate spaces are filled with a material which has fine pores, the second layer having a diffusion-equivalent air layer thickness of less than 2.0 m and being impermeable to water at a water pressure of at least 100 mm water column, wherein the material which has fine pores is selected from the group consisting of a partially or entirely an inorganic material.

Dependencies are inferred from the claim text.

Facts

Application

10/468,565Filed 22 Feb 2002

Priority

DE 101 09 26426 Feb 2001

Published

US 2004/0072487 A115 Apr 2004

Granted

15 Jul 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

C04B 40/0691
Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active…:…
B28B 19/0092
Machines or methods for applying the material to surfaces to form a permanent layer thereon: to webs, sheets or the like, e.g. of paper, cardboard
B32B 13/14
Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material: next to a…
E04C 2/043
Of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres: of plaster

Water-repellent and vapor-permeable multilayer material for outdoor applications

Life of this patent

Water-repellent and vapor-permeable multilayer material for outdoor applications

Life of this patent

Abstract

Claims5