DK152993B - ISOLATED SURFACE PLATE - Google Patents

Abstract

1. Insulated outside wall panel consisting of an insulating board which is provided with a plaster coat composed of granular and/or pulverulent insulating materials, a glass fibre web coated with a plastic film and a cement binder which has been mixed with water to which a plastic dispersion has been added, characterised in that the glass fibre web is thickly encased with at least one hydrolytically stable, waterinsoluble polymer layer of 10 to 35% by weight, in particular 15 to 25% by weight, of the polymer, based on the glass fibre.

Description

ISLAND

DK 152993B

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an insulated outer wall plate consisting of an insulating plate provided with a plaster layer composed of granular and / or powdery insulating materials, a glass fiber layer and a cement binder prepared with water added to plastic dispersion.

Exterior wall insulation systems with plastic foam, which are provided with dispersion or mineral plaster throughout, are known. Due to temperature-dependent movements, above all, in the area around the joints of the insulating elements, slight overloads occur, which then results in cracking. Therefore, these systems can only be executed impeccably by artisan companies capable of translating the manufacturer's processing direction lines into reality. Thus, it is a disadvantage that such systems cannot be used by do-it-yourselfers.

Also known are prefabricated inner wall coatings, in which a polystyrene foam putty is placed on a cement PZ 35 F polystyrene foam and a 20 center fiberglass layer prepared with water added plastic dispersion (solid content up to 4%) . Such interior wall coverings have already been tested by weather-protected walls. In addition, when built into the outer wall, rain and frost, which leads to 25 instability of the glass fibers, result from the reaction with the cement present. The usability, especially the strength and freedom of throws, cannot be sustained permanently. This disadvantage is also not avoided with a conventional coating with a plastic film when processing glass fibers.

The object of the invention is to provide a visible, insulating covering for a wind and weather exposed outer wall, which can also be placed impeccably by non-professionals individually and with little effort on the building site and which, in addition to a thermal insulation, which can be determined, has sufficient mechanical strength and durability.

This task is solved according to the invention by

ISLAND

2

DK 152993B

the fiber layer is coated with at least one hydrolytically stable, water-insoluble polymer layer of 10 to 35 wt%, especially 15 to 25 wt% polymer, based on the glass fibers.

Due to the hydrolytically stable, water-insoluble polymer layer over the glass fibers, the outer wall plate, despite any pore-filled plaster layer, is surprisingly insensitive to moisture externally because the fiberglass layer can no longer be attacked by the cement so that the original cement material properties remain preserved. Furthermore, it has been found that despite the relatively thick coating of polymer, the transfer of power between plastics and glass fibers is very intense without additional adhesive agents, e.g. functional alkoxysilanes so that the outer wall plate has a high strength. This greatly avoids the risk of cracking at temperature stresses. Due to the secure joining, the sensitivity is also reduced during handling or placement and utilization. In addition, the flatness of the outer wall is also maintained, which facilitates a nice work, so that the outer wall plate can also be used by self-builders.

The resin coating can be applied to the glass fibers in various ways. For example, the fiberglass as a fiberglass bundle having the desired number of single filaments having a fiber diameter in the range of approx. 5-40 µ is drawn through a solution, dispersion or melt of the plastic material or enclosed with the plastic melt in a special nozzle head by means of an extruder.

Suitable as polymer coatings are polymerisates of compounds containing double bonds, e.g. ethylene, propylene, butadiene, styrene, vinyl esters, acrylic and methacrylic acid esters, including copolymers of two or more monomeric compounds. In addition, polyurethanes, epoxide resins, and polysiloxanes come into play as polymer coatings. Particularly preferred is polyvinyl acetate.

35 As insulation plates, inter alia, PUR- hard foam, polystyrene hard foam, glass foam and insulating plates of inorganic or organic constituents are used, while

DK 152993B

3

ISLAND

insulators of the above mentioned materials having a diameter of 0 to 2 mm can be used as additives for the plaster stroke. Furthermore, a slight addition of sand, especially quartz sand, is also possible. Color-5 sentences are also conceivable.

Furthermore, the moisture attack can be reduced by protective or color overlays, which in particular brings the benefits of thin plaster (d £ 5 mm).

10 15 20 25 30 35

Claims (1)

O DK 152993B Patent claim. Insulated outer wall plate, consisting of an insulating plate provided with a plaster layer, composed of granular and / or powdery insulating materials, a glass fiber layer and a cement binder prepared with water added with plastic dispersion, characterized in that the fiberglass layer is coated with at least one hydrolytically stable, water-insoluble polymer layer of 10 to 35 wt%, especially 15 to 25 wt% polymer, based on the glass fibers. 10 15 20 25 30 35