CZ9904292A3 - Laminated heat-, sound- and water-proofing material, process of its manufacture and apparatus for making the same - Google Patents

Abstract

The laminated heat, sound and waterproofing material consists of at least one layer of cellular thermoplastic foam, k on which aluminum is firmly attached at least on one side foil, after both materials have been heated up subsequent passage between the production line pressure rollers. The method of producing this material is that the surface is The thermoplastic layer is fused to the surface of the aluminum foil by heating it to 80-170 ° C and above preheating the thermoplastic layer to a temperature of 40 to 100 ° C; subsequent passage between the two pressure rollers. Insulating the material is cooled to 50 ° C.

Description

Most techniques

BACKGROUND OF THE INVENTION The present invention relates to a flexible laminate for thermal, acoustic and hydro-isolation.

BACKGROUND OF THE INVENTION Known laminated insulating materials, characterized by a reflective aluminum surface foil, are formed such that the aluminum foil is bonded to the inner layer by means of an inserted thermoplastic foil. The inner layer is often formed by fibers or mats. CZ AO 234105 and CZ PV 217-96 disclose an insulating material whose inner layer is formed by blister foils interleaved with thermoplastic films. CZ PV 1254-97 (pr. DE 94/4439328) discloses an inner layer made of a hard plastic foam pulverized together with a binder then provided with a polyethylene / aluminum foil surface.

Existing layered insulating materials are made of at least five layers and are therefore production and material intensive.

SUMMARY OF THE INVENTION

The same degree of thermal and acoustic insulation achieves at a lower material and manufacturing cost a laminate which does not need a thermoplastic film or adhesive to bond the surface reflective aluminum foil. The thermally, acoustically and waterproofing flexible material consists of a layer of foamed thermoplastic having a cellular structure, with one or both sides firmly attached to an aluminum foil, preferably polished. The foamed thermoplastic layer of a certain structural density may be interleaved with one or more layers of foamed thermoplastic of different structural density, optionally with a plastic or metal foil.

The method for producing the above-described material consists in heating the surface of the thermoplastic foam layer (s) up to the melting point while heating the aluminum foil and subsequently melting these materials as they pass through the pressure rollers.

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The apparatus for producing the insulating material is a 1-in-one consisting of at least three guide rollers and two pressure rollers equipped, if necessary, with cooling. The number of guide rollers need not correspond to the number of layers of insulating material to be joined. The heating device may be located inside the guide rollers or on a line in the space between the guide and pressure rollers.

Laminated flexible insulating material with aluminum foil bonded on one or both sides, which, especially when polished, reflects at least 97% of radiant heat, impermeable moisture, reduces sound transmission and is very strong.

An overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated in greater detail in the drawings, in which: FIG. 1 is a schematic vertical section of an aluminum foil insulating material on both sides; FIG. 2 is a schematic vertical section of an aluminum foil insulating material; Fig. 4 is a vertical cross-sectional view of an insulating material consisting of three layers of foam thermoplastic of different structural densities provided with aluminum foil on both sides; Fig. 6 is a schematic diagram of an apparatus for producing insulating material with heated guide rollers; and Fig. 7 is a schematic diagram of an apparatus for producing insulating material. of material with a heating device placed on the line in the space between the guide and pressure rollers.

Examples

Example 1

The insulating foil 1, structure y = th material, the material according to Fig. 1 consists of an upper polished aluminum inner layer of cellular polyethylene foam 2 of cellular 30 kg / m 3 and a lower aluminum foil 1. This three-layered building construction was · P

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9 9 9 foam polyethylene was heated to a temperature of up to 90 C on a heating 7 equipped with a guide roller 4.2, the aluminum foils were heated to a temperature of up to 170 ° C on a heated equipped guide rollers 4.I and then passed between a pair of cooled pressure rollers. 5 melted together and cooled to a temperature of up to 50 ° C.

Example 2

The insulating material according to Fig. 2 consists of an aluminum foil 1 and a layer of foamed polyethylene 2 with a cell structure φ up to 100 kg / m 3.

This two-layer construction-grade material was made using two guide rollers 4.1, __ 4.2, where the polyethylene foam was heated to a temperature of up to 90 ° C and the aluminum foil to a temperature of up to 100 ° C.

Example 3

The insulating material of FIG. 3 consists of surface polished aluminum foils 1 firmly bonded to layers of polyethylene foam material 2.1 of finer cellular structure, between which a layer of polyethylene foam material 2.2 of coarser cellular structure is bonded.

A five-layer insulating material suitable for thermal and acoustic insulation was made using the heat-guided rollers 4 such that the aluminum foils were heated to a temperature of up to 170 ° C, the foam layers of finer cellular structure would be heated to a temperature of up to 100 ° C. the coarser cellular structure is also up to 100 ° C.

Example 4

The insulating material according to FIG. 4 consists of a top polished aluminum foil 1, a bottom aluminum foil 1 and an inner layer of a foamed thermoplastic material 2 interlaced with a plastic foil 3.

A five-layer insulating material suitable for thermal and acoustic insulation was produced 4 such that the inserted plastic film was heated to a temperature of up to 100 C.

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Example 5

The insulating material according to FIG. 5 consists of two upper and lower polished aluminum foils 1 and 2 of the inner layer of the foamed thermoplastic material 2 interspersed with the metal foil 6.

The five-layer material was made in such a way that the inserted metal foil 6 was heated to a temperature of up to 170 ° C.

The industry has already started

Flexible, thermally and acoustically damp, moisture-proof material can be used in construction, refrigeration, in the automotive industry, in packaging, and in the manufacture of protective clothing and tents.

Claims (10)

PATENT CLAIMS 1. Laminated thermal, acoustic and waterproofing material characterized by. 7. A process according to claim 1, characterized in that it consists of at least one layer of cellular foam thermoplastic (2) firmly connected to at least one aluminum foil (1). 2. The laminated insulating material of claim 1. se. in that at least one aluminum foil (1) is polished. 3. The laminated insulating material of claim 1. se. in that the layer of foamed thermoplastic (2.1) of finer cellular structure is interleaved with a layer of foamed thermoplastic (2.2) of coarser cellular structure. Composite insulating material according to claim 1, characterized in that the layer of foamed thermoplastic (2) is interleaved with a plastic film (3). 5. The laminated insulating material of claim 1. se. in that the layer of foamed thermoplastic (2) is interleaved with a metal foil (6). 6. Method for producing a laminated insulating material according to claims 1 to 5, characterized in that. se. in that the surface of the cellular foam thermoplastic layer (2) is adhered to the facing surface of the aluminum foil (1) after the aluminum foil (1) has been heated to a temperature of 80 to 170 temperature from 40 to 100 ° C and that after the subsequent passage between the two pressure rollers (5) the insulation material was cooled to a temperature of up to 50 ° C. Device for producing laminated insulating material according to claims 1 to 6, forming a line composed of at least three guide and two pressure rollers, characterized in that the number of guide rollers (4) does not always correspond to the number of layers of which the insulating material is created. ♦ ··· ·· ·· ·· · «·· * ··· ·· ·· An apparatus for producing a laminate insulating material according to claims 1 to 7. se. The guide rollers (4) are equipped with a heating device (7). Apparatus for producing laminated insulating material according to claims 1 to 7, characterized in that. se. in that the pressure rollers (5) are equipped with a cooling device. An apparatus for producing a layered insulating material according to claims 1 to 7, characterized by. se. wherein the heating device (7) is located on a line in the space between the guide rollers (4) and the pressure rollers (5).