EP0159514B2 - Couche de revêtement à base de nappe ou de tissu - Google Patents

Couche de revêtement à base de nappe ou de tissu Download PDF

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Publication number
EP0159514B2
EP0159514B2 EP19850102823 EP85102823A EP0159514B2 EP 0159514 B2 EP0159514 B2 EP 0159514B2 EP 19850102823 EP19850102823 EP 19850102823 EP 85102823 A EP85102823 A EP 85102823A EP 0159514 B2 EP0159514 B2 EP 0159514B2
Authority
EP
European Patent Office
Prior art keywords
material according
cover
cover material
coating
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19850102823
Other languages
German (de)
English (en)
Other versions
EP0159514A1 (fr
EP0159514B1 (fr
Inventor
Heinrich Brands
Siegfried Fiebig
Hans Schillings
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANS SCHILLINGS
Original Assignee
Vliepa GmbH Vlies Papier und Kunststoffveredlung Loesungen fuer Die Bau Papier und Verpackungsindustrie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Vliepa GmbH Vlies Papier und Kunststoffveredlung Loesungen fuer Die Bau Papier und Verpackungsindustrie filed Critical Vliepa GmbH Vlies Papier und Kunststoffveredlung Loesungen fuer Die Bau Papier und Verpackungsindustrie
Priority to AT85102823T priority Critical patent/ATE32612T1/de
Publication of EP0159514A1 publication Critical patent/EP0159514A1/fr
Application granted granted Critical
Publication of EP0159514B1 publication Critical patent/EP0159514B1/fr
Publication of EP0159514B2 publication Critical patent/EP0159514B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0039—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by the physical or chemical aspects of the layers
    • D06N7/0052—Compounding ingredients, e.g. rigid elements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/06—Properties of the materials having thermal properties
    • D06N2209/067—Flame resistant, fire resistant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2631—Coating or impregnation provides heat or fire protection

Definitions

  • the invention relates to a nonwoven or fabric-based cover layer material for plates made of liquid or liquid-containing starting components provided with cover layers on both sides, with a coating of powdery inorganic material and binders applied on one side.
  • Panels provided with cover layers on both sides are widely used as components such as roof elements and for heat and impact sound insulation as well as packaging material.
  • the cover layers on one side, but usually on both sides of the plate usually fulfill a double function: on the one hand, they give the particularly stressed top and bottom surfaces of the plates special properties such as stability and strength, gas and water vapor density, etc., and on the other hand they have a protective function in the manufacture of the panels, in particular to prevent them from sticking to the form in which the foaming takes place.
  • nonwoven or woven webs as cover sheet materials, such as nonwovens or woven fabrics made of cellulose fibers, polyester fibers, and in particular because of their non-flammability, glass fiber nonwovens or woven fabrics.
  • cover sheet materials such as nonwovens or woven fabrics made of cellulose fibers, polyester fibers, and in particular because of their non-flammability, glass fiber nonwovens or woven fabrics.
  • core material such as the polyurethane foam
  • the bond between core and cover sheet material made of paper or foil was always problematic. Nevertheless, nonwoven and woven materials have not been able to establish themselves as cover layer material because the liquid components pass through the spaces present in the nonwoven or woven fabric and in turn lead to sticking to the plate tapes.
  • Such liquid or liquid-containing starting components are present in particular in the production of rigid PU foams, but also in the case of urea-formaldehyde foam materials in which the starting materials react chemically or set and in the production of gypsum boards which set hydraulically.
  • an insulation body which has an outer skin made of a glass fiber fleece which has a coating of at least one metal oxide such as aluminum hydroxide and / or antimony oxide and plastic copolymers.
  • metal oxide such as aluminum hydroxide and / or antimony oxide and plastic copolymers.
  • the proportion of metal oxide in the dried mass in this cover layer material is between 50 and 70% by weight, the coating composition being applied to the glass fiber fleece in a pasty, foamed state and then dried by means of radiant heat.
  • Such a coating composition may meet the earth's requirements for flame resistance, but not the solution to the problem posed by the invention.
  • Percentages of 50 to 70% by weight of inorganic material are solids concentrations as are customary in coating and coating compositions for paper and cardboard.
  • Such conventional coating compositions with a high proportion of binder and liquid are not suitable for the purpose pursued by the invention because liquid and binder penetrate through the fleece or fabric and lead to sticking to the rollers and belts of the coating system.
  • the considerable amounts of liquid to be removed also lead to bubbles and to the drying process Shrinkage and the coating does not dry without cracks.
  • the relatively high proportion of binder also frequently leads to the plates sticking to one another when the plates provided with these cover layers are stacked, in particular due to the heat released during the post-hardening of the plates.
  • a cover layer material with the generic features of claim 1 in that there is a coating on a nonwoven or fabric with a basis weight of 35 to 350 g / m 2 in which the powdery inorganic material 80-94 and the binder at least 6% by weight of atro of the total coating.
  • a preferred method for producing the cover layer material is to use a coating composition with a very high solids content, preferably from 70 to 80% by weight. Surprisingly, this coating can still be applied with a squeegee. It is expediently dried with hot circulating air and results in a perfectly closed coating without bubbles, shrinkage or cracks.
  • the advantage of the cover sheet material according to the invention lies in the fact that the unusually high proportion of inorganic material makes the fleece or fabric impermeable to the liquid starting components, thereby maintaining the open structure of the fleece or fabric on the back and thus ensuring good anchoring of the cover sheet material the core material of the plate is guaranteed during the subsequent formation or foaming.
  • the high proportion of inorganic material also means that a PU rigid foam sheet provided with this top layer material is resistant to hot bitumen, for example of 180 degrees, the top layer is not destroyed and no blistering occurs between the top layer and PU rigid foam.
  • the high proportion of inorganic material further reduces the flammability compared to previously known materials.
  • inorganic-based binders such as water glass
  • organic-based binders in particular plastic-based
  • plastic-based are suitable as binders. Since water glass as a binder makes the top layer quite brittle, blends with binders based on plastic are also recommended.
  • Inorganic binders have the advantage that they further reduce the flammability.
  • the plastic-based binders are preferably used as plastic dispersions with a solids content of 35 to 70% by weight.
  • Particularly suitable are polyvinyl chloride and polyvinylidene chloride, which have the advantage of being flame-retardant and copolymers and terpolymers of vinyl acetate with maleic acid and acrylic acid. Because of their good binder properties, styrene-butadiene copolymers and polymers or copolymers of acrylic acid or methacrylic acid are particularly preferred over the inorganic coating constituents.
  • the amount of plastic dispersion used depends somewhat on the solids content, and in order to keep the energy required for drying the coating low, the solids content is as high as possible.
  • the most diverse powdery substances are suitable as inorganic material, in particular those based on minerals, such as silicates, clays, etc. Because of its easy accessibility and therefore reasonable pricing, calcium carbonate has proven to be particularly preferred.
  • aluminum hydroxide or aluminum oxide hydrate is particularly recommended as the inorganic material, with which the flammability level A2 can be achieved.
  • the inorganic material consists of a mixture of 10 to 50% by weight calcium carbonate and 90 to 50% by weight aluminum hydroxide or aluminum oxide hydrate for the coating.
  • the cover layer material and the PU rigid foam sheet covered with it become all the more so more flame-resistant, the higher the proportion of aluminum hydroxide or aluminum oxide hydrate.
  • the coating expediently also contains certain proportions of organic or mineral dyes, in order to thereby identify different grades of the plate, for example with regard to the fire behavior.
  • coloring the cover material with carbon black has proven to be preferred, because even a small amount covers the entire surface.
  • the admixture of up to 5% by weight of titanium oxide powder, based on the total amount of inorganic Material proven to be preferred.
  • the fleece or fabric used for the cover layer material has a basis weight between 35 and 350 g / m 2 , preferably from 40 g / m 2 to 150 g / m 2 and the application weights of the coating are expediently between 150 and 450 g / m 2 , whereby these weights to a large extent on the intended use, the thickness of the core material and the like. Factors are dependent. Glass fiber fleece or woven fabric has proven particularly useful as a nonwoven and woven material, since it is not flammable. An organic-based nonwoven and woven material is expediently used. Because of its good strength, a polyester fiber fleece is preferred.
  • both fleece and a mesh fabric are expediently used together, because this can significantly reduce the susceptibility of the gypsum boards to breakage.
  • fleece and mesh together the longitudinal and transverse strength can generally be increased considerably.
  • cover layer material is particularly preferred for the production of sheets of liquid or liquid-containing starting components provided with cover layers on both sides, in particular for the production of gypsum boards and polyurethane (PU) rigid foam boards.
  • the use of the cover layer material is very preferred for the production of plates provided with cover layers on both sides in a continuous plate production system with upper and lower belt. It is of course also suitable as a lamination material for subsequent lamination, for example on polystyrene foam sheets cut from a block of foamed polystyrene, the uncoated nonwoven or fabric side also being available here for the good bond between the cover layer material and the core material via the lamination material.
  • a coating composition of CaC0 3 is applied to a glass fiber fleece with a weight per unit area of approx. 60 g / m 2 in a knife coater.
  • the proportions of CaC0 3 powder and plastic dispersion in the coating composition are chosen so that after drying with hot circulating air in a drying tunnel, the coating is 92% by weight of inorganic material and 6.5% by weight of binder and the rest consists of auxiliary materials.
  • the coating amount is 250 g / m 2 atro.
  • a cellulose-based fleece which is flame-retardant and has a weight of 50 g / m 2 , is applied in a knife coater with a coating composition of aluminum hydroxide, calcium carbonate and a plastic dispersion of a terpolymer of vinyl acetate, maleic acid and methacrylic acid ester with a solids content of 50 % By weight and 3 g of the customary auxiliaries, the total solids content of the coating composition being approximately 73% by weight.
  • the proportions of aluminum hydroxide, calcium carbonate and plastic dispersion in the coating composition are selected so that after drying with hot circulating air in a drying tunnel, the coating is 60% by weight aluminum hydroxide, 22% by weight calcium carbonate and 15% by weight. % of binder, the rest of auxiliary materials.
  • the coating amount is approx. 250 g / m 2 atro.
  • wetting and preserving agents and 23 g of water were applied in a knife coater and dried with hot circulation in a drying tunnel.
  • This top layer material is characterized by the use of titanium dioxide due to its white Color and is used in the production of white panels that are used as wall cladding. The amount of coating on the dried top layer is approx. 270 g / m 2 atro.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Textile Engineering (AREA)
  • Structural Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Air Bags (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Toilet Supplies (AREA)
  • Decoration Of Textiles (AREA)
  • Details Of Garments (AREA)

Claims (16)

1. Matériau pour couche de revêtement à base de tissu ou non-tissé pour la fabrication de panneau avec deux côtés de couches, dont les composants de base sont liquide ou contient liquides, le matériau pour couche a un enduit appliqué d'un seul côté constitué d'un matériau minéral en poudre et d'un liant, caractérisé,
en ce tissu ou non-tissé a un poids de 150 que 350 g/m2 et le matériau minéral a 80 - 94 en poids et le liant a au moins 6 % en poids à sec.
2. Matériau de revêtement conforme à la revendication 1, caractérisé en ce que le liant est constitué d'une dispersion de matière plastique présentant de 35 à 70% en poids de proportion de matières solides.
3. Matériau de revêtement conforme à l'une des revendications 1 et 2, caractérisé en ce que le liant est constitué d'un latex à base de copolymères du styrène et du butadiène.
4. Matériau de revêtement conforme à l'une quelconque des revendications 1 et 2, caractérisé en ce que le liant est constitué d'un latex à base de polymères ou de copolymères de l'acide acrylique ou de l'acide méthacrylique.
5. Matériau de revêtement conforme à la revendication 1, caractérisé en ce que le liant repose sur une couche de base minérale.
6. Matériau de revêtement conforme à l'une des revendications 1 et 5, caractérisé en ce que le liant est du verre soluble.
7. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 6, caractérisé en ce que le liant est constitué d'un mélange de verre soluble et d'une dispersion de matière plastique.
8. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 7, caractérisé en ce que le matériau minéral est du carbonate de calcium.
9. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 8, caractérisé en ce que le matériau minéral est de l'hydroxyde d'aluminium ou de l'hydrate d'oxyde d'aluminium.
10. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 9, caractérisé en ce que le matériau minéral est un mélange constitué de 10 à 50% de carbonate de calcium et de 90 à 50% d'hydroxyde d'aluminium ou d'hydrate d'oxyde d'aluminium.
11. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 8, caractérisé en ce que l'enduit contient des colorants organiques ou minéraux.
12. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 9, caractérisé en ce que le matériau minéral contient en plus, en tant que colorant minéral, jusqu'à 5% en poids de dioxyde de titane en poudre, par rapport à la quantité totale du matériau minéral.
13. Matériau de revêtement conforme à l'une quelconque des revendications 1 à 12, caractérisé en ce que le non-tissé ou le tissu présente un poids surfacique compris entre 35 et 350 g/m2, et en ce que le poids de couche de l'enduit se situe entre 150 et 450 g/m2.
14. Procédé de fabrication du matériau de revêtement conforme à l'une quelconque des revendications 1 à 13, caractérisé en ce que l'on applique, sur le non-tissé ou le tissu, à l'aide d'un dispositif à racle, une masse d'enduit présentant une teneur en matières solides de 70 à 80% en poids, et que l'on sèche cet enduit par séchage à circulation d'air.
15. Utilisation du matériau de revêtement conforme à l'une quelconque des revendications 1 à 13, pour la fabrication de plaques, muni des deux côtés de couches de revêtement, et dont les composants de base sont liquides ou contiennent des liquides, en particulier pour la fabrication de panneaux de plâtre et de plaques de mousse dure en polyuréthane (PU).
16. Utilisation du matériau pour couche de revêtement conforme à l'une quelconque des revendications 1 à 13, pour la fabrication de panneaux, muni des deux côtés de couches de revêtement, dans une installation de production de panneaux en continu, avec une bande inférieure et une bande supérieure.
EP19850102823 1984-03-12 1985-03-12 Couche de revêtement à base de nappe ou de tissu Expired - Lifetime EP0159514B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102823T ATE32612T1 (de) 1984-03-12 1985-03-12 Decklagenmaterial auf vlies- oder gewebebasis.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843408932 DE3408932A1 (de) 1984-03-12 1984-03-12 Decklagenmaterial auf vlies- oder gewebebasis
DE3408932 1984-03-12

Publications (3)

Publication Number Publication Date
EP0159514A1 EP0159514A1 (fr) 1985-10-30
EP0159514B1 EP0159514B1 (fr) 1988-02-24
EP0159514B2 true EP0159514B2 (fr) 1993-05-12

Family

ID=6230187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850102823 Expired - Lifetime EP0159514B2 (fr) 1984-03-12 1985-03-12 Couche de revêtement à base de nappe ou de tissu

Country Status (6)

Country Link
US (1) US4784897A (fr)
EP (1) EP0159514B2 (fr)
AT (1) ATE32612T1 (fr)
DE (2) DE3408932A1 (fr)
FI (1) FI81391C (fr)
WO (1) WO1985004199A1 (fr)

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Publication number Publication date
FI854437A (fi) 1985-11-12
DE3408932A1 (de) 1985-09-19
EP0159514A1 (fr) 1985-10-30
WO1985004199A1 (fr) 1985-09-26
FI854437A0 (fi) 1985-11-12
FI81391C (fi) 1990-10-10
FI81391B (fi) 1990-06-29
US4784897A (en) 1988-11-15
DE3561666D1 (en) 1988-03-31
EP0159514B1 (fr) 1988-02-24
ATE32612T1 (de) 1988-03-15

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