WO2008017931A2 - Method for obtaining and laying a coating element, plant for making the coating element and coating element so obtained - Google Patents

Method for obtaining and laying a coating element, plant for making the coating element and coating element so obtained Download PDF

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Publication number
WO2008017931A2
WO2008017931A2 PCT/IB2007/002275 IB2007002275W WO2008017931A2 WO 2008017931 A2 WO2008017931 A2 WO 2008017931A2 IB 2007002275 W IB2007002275 W IB 2007002275W WO 2008017931 A2 WO2008017931 A2 WO 2008017931A2
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WO
WIPO (PCT)
Prior art keywords
mixture
formwork
ligand
coating element
plant
Prior art date
Application number
PCT/IB2007/002275
Other languages
French (fr)
Other versions
WO2008017931A3 (en
Inventor
Max Canti
Original Assignee
Labicer-Laboratorio Industrial Ceramico, S.A.
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
Application filed by Labicer-Laboratorio Industrial Ceramico, S.A. filed Critical Labicer-Laboratorio Industrial Ceramico, S.A.
Publication of WO2008017931A2 publication Critical patent/WO2008017931A2/en
Publication of WO2008017931A3 publication Critical patent/WO2008017931A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/66—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler comprising hollow constituents, e.g. syntactic foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
    • B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/16—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B30/00—Compositions for artificial stone, not containing binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure

Definitions

  • the invention concerns the coatings and in particular it refers to a method for obtaining and laying a coating element, a plant for making the coating element and the coating element so obtained.
  • thermal-insulating material fit to concurrently be used as external in view coating, in fact the known insulating materials are laid onto exterior walls and coated with a puttied and painted net.
  • the insulating panels are made of plastic materials, such as expanded or sintered polystyrene, onto which usual coating materials cannot be applied because the commercial adhesives do not ensure to hold them.
  • a drawback of said known coating element consists in that they need to be coated.
  • Another drawback consist in that, some of them do not ensure a suitable fire resistance and/or decompose at high temperatures.
  • An object of the present invention is to propose a coating element that can be laid directly exposed. Another object is to propose an element with also thermal-insulating features.
  • Another object is to propose and low-flammable (class 1) or non-flammable (class 2) coating element, and that produce an irrelevant quantity of fumes.
  • Another object is to propose a lightweight sound-adsorbent element.
  • FIG. 1 shows a schematic view of the plant object of the present invention.
  • the coating element object of the present invention comprises a material obtained from the glass recycling and it consists in expanded glass lightweight grains of different size, as the type branded as "Poraver®". Said grains, because of their high resistance to compression, allow to obtain panel element made under press at pressure of 100 Kg./cm2. Said elements have a density of 700-760 Kg/me, and so are extremely lightweight and have high mechanical features. With a thickness of 40 mm fit to the insulation, the panel could weigh less than the usual coating of 15 mm.
  • Said expanded glass grains are mixed with inorganic or organic ligands preferably bicomponent polyurethane resin in order to increase the insulating power thereof.
  • the resin is added in lowest percentage, from 6% to 15% in weight, while the inorganic ligand is added in a measure of 30-40%.
  • the first case panel element of class (1) low inflammable, are obtained with the advantage of greater lightness and thermal and acoustic insulating power, in the second case heavier and with lower insulating power panels are obtained, but of class (0), non-inflammable.
  • the plant 1, object of the present invention and shown in figure 1, allows to obtain both of the above mentioned elements.
  • Grains and ligand are automatically dosed, through suitable dosing means 20, and introduced in mixing means 2 comprising a couple of crown wheel mixers 3, that alternatively mix with continuous supply.
  • the mixing means 2 are emptied and the mixture so obtained is carried into a drawer 105 through respective ducts 4, 104 each one consisting, as an example, in a oscillating flexible conduit.
  • Said drawer comprises a lower transversal adjustable opening, that supplies the mixture to the below conveyor belt 6, being covered of an uniform thickness layer and transferring the mixture in a second conveyor belt 7 that runs below a greater adjustable speed, allowing in this way to stratify the mixture to an as lower as wanted thickness.
  • the mixture is cooled by means of cooling means, if necessary, in order to maintain the materials at a temperature of 18 0 C or lower, preferable with a liquid nitrogen current in order to delay the component reaction, while if the ligands are inorganic is not necessary to cool if the materials temperature is of 25 0 C or lower.
  • the second conveyor belt 7 having the mixture uniformly stratified transfers it to a formwork 8 having containing outside walls and a shaped floor 16 made of stiff resin or silicone rubber.
  • pigments or other decorative elements like powder colourings made of inorganic oxides, are provided to be added to the mixture in order to colour or decorate the surface of the element.
  • the colouring can be added to the mixture during the mixing, or spread onto the formwork 8 floor.
  • the formwork 8 has a cover 11, permeable to microwaves, with a compression male. If the used ligand is inorganic, the mixture in the formwork is irradiated with microwaves emitted by microwaves emission means 13 turned in the formwork 8 direction.
  • the formwork 8 is subsequently introduced in pressing means 30, as an example multi- housing with independent opening for the compression of several form works 8.
  • the pressing means 30 of multi-housing type allow to maintain under pressure several formworks and to concurrently introduce an other formwork 8 through a free opening, allowing thus a continuous processing with frequency defined by the preparation time of the formwork 8 to be introduced and by the number of openings of the pressing means 30 of the multi-housing type.
  • the elements obtained with the organic ligand can be extract suddenly from the formwork through an vacuum plane opening the cover 11 of the formwork 8, the elements obtained with an inorganic ligand need to be conveyed onto a rolling motorized path, depositing them onto a trays, opportunely spaces, in order to allow the air entrainment during the cure and extracting them downstream.
  • the coating panels can also not be used as thermal-insulating, when made in thin layer, in this case they are used as extremely lightweight and resistant coating material, which can be obtained also in combination with organic or inorganic fibres and thus be used for ventilated walls, for interior setting coating, for set designing, disposable caissons for concrete casting embedding, for dividing interior walls in replacement to plasterboard panels and so on.
  • a variant of the described method provides to use the same plant with some modifications, dosing a percentage of bicomponent polyurethane resin in a major measure, from 20% to 30% in weight.
  • the formworks used in this variant have a cover 11 hinged without compression male but with mechanical clamping devices.
  • the formwork 8 filled with the mixture in an apparent relatively low density, closed and clamped, is exposed to the microwaves emission means 13, like the magnetron, which heat simultaneously the whole mass of the mixture triggering a component reaction, which in the first five minutes in exothermic reaction give rise to an expansion, and then the derived compound solidifies.
  • the expansion provides pressure from the inside fit to obtain an external layer of some millimetres hard and resistant matching the formwork 8 walls and shaped floor 16 while inside the panel thickness closed cavities develop having expanded glass grains.
  • a thin layer of mixture with less resin can be formed in an adjacent line of the plant 1, the latter mixture pre-compacted at the plastic state through several rollers placed transversally on to a table tilted in the advancing direction of the forming belt.
  • the needed portion of mixture is extracted through an aspired plane with a perimetric punch and deposited into the formwork 8 matching the shaped floor 16, thereafter , is stratified the mixture at relatively low density , containing the necessary quantity of resin in order to have the expansion with expanded glass grain of greater size in combination with finest grain in order to close the cavities.
  • the formwork 8 is closed and clamped.
  • the thin pre-compacted layer in the plastic stat expands, while the mixture with a relatively low density containing a greater bicomponent resin quantity during the expansion exerts a pressure from the inside in order to make the thin layer with grater density match perfectly onto the shaped floor 16.
  • Self supporting panels with resistant surface are so obtained, in which the thermal insulating power of the expanded glass grains is increased by the cavities that confer also acoustics insulating power.
  • the panel obtained with the latter variant is extremely lightweight, with density from 350 Kg/m3 to 500 Kg/m3 and more, with a superficial crust hard and resistant that makes it self supporting, and with a thermal-insulating power widely increased by the cavity structure added to the insulating power of the expanded glass that forms the cavities walls, with the additional feature of being sound-adsorbent and having the possibility to be made in thinner layers.
  • An advantage of the present invention is to provide a coating element that can be laid directly exposed.
  • Another advantage is to provide an element with also thermal-insulating features.
  • Another advantage is to provide and low-flammable (class 1) or non-flammable (class 2) coating element, and that produce an irrelevant quantity of fumes.
  • Another advantage is to provide a lightweight sound-adsorbent element.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Fertilizers (AREA)
  • Artificial Fish Reefs (AREA)

Abstract

A method and apparatus for obtaining a coating element comprises at least the following sequence of steps: - dosing at least expanded glass grains, and/or other solid elements, and ligands in a mixer and mixing said at least expanded glass grains and/or other solid elements and ligands obtaining at least a mixture; - pouring said at least a mixture in a formwork (8) or the like; - putting under pressure the at least a mixture in the formwork and solidifying it; - extracting from the formwork the element made of the at least a mixture hardened and formed.

Description

METHOD FOR OBTAINING AND LAYING A COATING ELEMENT, PLANT FOR MAKING THE COATING ELEMENT AND COATING ELEMENT SO OBTAINED
TECHNICAL FIELD
The invention concerns the coatings and in particular it refers to a method for obtaining and laying a coating element, a plant for making the coating element and the coating element so obtained.
BACKGROUND ART
Considering the technical - scientific state of the art, thermal-insulating material fit to concurrently be used as external in view coating, in fact the known insulating materials are laid onto exterior walls and coated with a puttied and painted net.
Generally the insulating panels are made of plastic materials, such as expanded or sintered polystyrene, onto which usual coating materials cannot be applied because the commercial adhesives do not ensure to hold them.
Said materials, even if low-flammable (class 1) and widely used, decomposes at temperatures greater than 100°C and produce explosive gas blowing up the plaster or the coating, so they always need a suitable protection for the plaster or the coating.
A drawback of said known coating element consists in that they need to be coated.
Another drawback consist in that, some of them do not ensure a suitable fire resistance and/or decompose at high temperatures.
DISCLOSURE OF THE INVENTION
An object of the present invention is to propose a coating element that can be laid directly exposed. Another object is to propose an element with also thermal-insulating features.
Another object is to propose and low-flammable (class 1) or non-flammable (class 2) coating element, and that produce an irrelevant quantity of fumes.
Another object is to propose a lightweight sound-adsorbent element.
Other objects are to propose a method and a plant in order to make said element and a method to lay it.
BRIEF DESCRIPTION OF THE DRAWING
In the following the features of the invention are shown with particular reference to the attached drawing where:
- Figure 1 shows a schematic view of the plant object of the present invention.
BEST MODE OF CARRYING OUT THE INVENTION
The coating element object of the present invention comprises a material obtained from the glass recycling and it consists in expanded glass lightweight grains of different size, as the type branded as "Poraver®". Said grains, because of their high resistance to compression, allow to obtain panel element made under press at pressure of 100 Kg./cm2. Said elements have a density of 700-760 Kg/me, and so are extremely lightweight and have high mechanical features. With a thickness of 40 mm fit to the insulation, the panel could weigh less than the usual coating of 15 mm.
Said expanded glass grains are mixed with inorganic or organic ligands preferably bicomponent polyurethane resin in order to increase the insulating power thereof.
The resin is added in lowest percentage, from 6% to 15% in weight, while the inorganic ligand is added in a measure of 30-40%. In the first case panel element of class (1), low inflammable, are obtained with the advantage of greater lightness and thermal and acoustic insulating power, in the second case heavier and with lower insulating power panels are obtained, but of class (0), non-inflammable.
The plant 1, object of the present invention and shown in figure 1, allows to obtain both of the above mentioned elements. Grains and ligand, are automatically dosed, through suitable dosing means 20, and introduced in mixing means 2 comprising a couple of crown wheel mixers 3, that alternatively mix with continuous supply.
After about 2 minutes of mixing, the mixing means 2 are emptied and the mixture so obtained is carried into a drawer 105 through respective ducts 4, 104 each one consisting, as an example, in a oscillating flexible conduit. Said drawer comprises a lower transversal adjustable opening, that supplies the mixture to the below conveyor belt 6, being covered of an uniform thickness layer and transferring the mixture in a second conveyor belt 7 that runs below a greater adjustable speed, allowing in this way to stratify the mixture to an as lower as wanted thickness. In case of organic bicomponent polyurethane ligand matrix, during the mixing the mixture is cooled by means of cooling means, if necessary, in order to maintain the materials at a temperature of 180C or lower, preferable with a liquid nitrogen current in order to delay the component reaction, while if the ligands are inorganic is not necessary to cool if the materials temperature is of 250C or lower. The second conveyor belt 7 having the mixture uniformly stratified transfers it to a formwork 8 having containing outside walls and a shaped floor 16 made of stiff resin or silicone rubber.
In addiction, pigments or other decorative elements, like powder colourings made of inorganic oxides, are provided to be added to the mixture in order to colour or decorate the surface of the element. The colouring can be added to the mixture during the mixing, or spread onto the formwork 8 floor.
The formwork 8 has a cover 11, permeable to microwaves, with a compression male. If the used ligand is inorganic, the mixture in the formwork is irradiated with microwaves emitted by microwaves emission means 13 turned in the formwork 8 direction.
The formwork 8 is subsequently introduced in pressing means 30, as an example multi- housing with independent opening for the compression of several form works 8. The pressing means 30 of multi-housing type allow to maintain under pressure several formworks and to concurrently introduce an other formwork 8 through a free opening, allowing thus a continuous processing with frequency defined by the preparation time of the formwork 8 to be introduced and by the number of openings of the pressing means 30 of the multi-housing type.
While the elements obtained with the organic ligand can be extract suddenly from the formwork through an vacuum plane opening the cover 11 of the formwork 8, the elements obtained with an inorganic ligand need to be conveyed onto a rolling motorized path, depositing them onto a trays, opportunely spaces, in order to allow the air entrainment during the cure and extracting them downstream.
The coating panels can also not be used as thermal-insulating, when made in thin layer, in this case they are used as extremely lightweight and resistant coating material, which can be obtained also in combination with organic or inorganic fibres and thus be used for ventilated walls, for interior setting coating, for set designing, disposable caissons for concrete casting embedding, for dividing interior walls in replacement to plasterboard panels and so on.
A variant of the described method provides to use the same plant with some modifications, dosing a percentage of bicomponent polyurethane resin in a major measure, from 20% to 30% in weight.
The formworks used in this variant have a cover 11 hinged without compression male but with mechanical clamping devices.
The formwork 8 filled with the mixture, in an apparent relatively low density, closed and clamped, is exposed to the microwaves emission means 13, like the magnetron, which heat simultaneously the whole mass of the mixture triggering a component reaction, which in the first five minutes in exothermic reaction give rise to an expansion, and then the derived compound solidifies.
The expansion provides pressure from the inside fit to obtain an external layer of some millimetres hard and resistant matching the formwork 8 walls and shaped floor 16 while inside the panel thickness closed cavities develop having expanded glass grains.
In order to confer to the element a superficial layer with a greater thickness and higher density, a thin layer of mixture with less resin can be formed in an adjacent line of the plant 1, the latter mixture pre-compacted at the plastic state through several rollers placed transversally on to a table tilted in the advancing direction of the forming belt.
Subsequently the needed portion of mixture is extracted through an aspired plane with a perimetric punch and deposited into the formwork 8 matching the shaped floor 16, thereafter , is stratified the mixture at relatively low density , containing the necessary quantity of resin in order to have the expansion with expanded glass grain of greater size in combination with finest grain in order to close the cavities. After having included the second mixture, the formwork 8 is closed and clamped.
The thin pre-compacted layer in the plastic stat expands, while the mixture with a relatively low density containing a greater bicomponent resin quantity during the expansion exerts a pressure from the inside in order to make the thin layer with grater density match perfectly onto the shaped floor 16.
Self supporting panels with resistant surface are so obtained, in which the thermal insulating power of the expanded glass grains is increased by the cavities that confer also acoustics insulating power.
The panel obtained with the latter variant is extremely lightweight, with density from 350 Kg/m3 to 500 Kg/m3 and more, with a superficial crust hard and resistant that makes it self supporting, and with a thermal-insulating power widely increased by the cavity structure added to the insulating power of the expanded glass that forms the cavities walls, with the additional feature of being sound-adsorbent and having the possibility to be made in thinner layers.
An advantage of the present invention is to provide a coating element that can be laid directly exposed.
Another advantage is to provide an element with also thermal-insulating features.
Another advantage is to provide and low-flammable (class 1) or non-flammable (class 2) coating element, and that produce an irrelevant quantity of fumes.
Another advantage is to provide a lightweight sound-adsorbent element.
Other advantages are to provide a method and a plant in order to make said element and a method to lay it.

Claims

1) Method for obtaining a coating element characterized in that comprises at least the following sequence of steps: - dosing at least expanded glass grains, and/or other solid elements, and ligands in a mixer and mixing said at least expanded glass grains and/or other solid elements and ligands obtaining at least a mixture;
- pouring said at least a mixture in a formwork or the like;
- putting under pressure the at least a mixture in the formwork and solidifying it; - extracting from the formwork the element made of the at least a mixture hardened and formed.
2) Method according to claim 1 characterized in that it includes the step of mixing the at least a mixture for at least 30 seconds, preferable for about 2 minutes.
3) Method according to claim 1 characterized in that it includes the step of using inorganic ligands.
4) Method according to claim 1 characterized in that it includes the step of using organic ligands, like bicomponent polyurethane resin and the like.
5) Method according to claim 1 characterized in pouring the at least a mixture on the formwork, transferring it from the mixer onto a first conveyor belt, and from the first conveyor belt onto a second conveyor belt that runs at an higher speed than the first one, and then transferring the mixture from the second conveyor belt to the formwork or the like.
6) Method according to claim 4 characterized in that it includes the step of irradiating by microwaves the at least a mixture in the formwork.
7) Method according to claim 4 characterized in maintaining the temperature of the organic ligands, during the mixing, at 18 °C or lower, cooling them if necessary. 8) Method according to claim 3 characterized in maintaining the temperature of the inorganic ligands, during the mixing, at 25 °C or lower, cooling them if necessary.
9) Method according to claims 7 or 8 characterized in cooling ligand through a liquid nitrogen stream.
10) Method according to claim 4 characterized in dosing in the mixture a percentage in weight of organic ligand from 6% to 15%.
11) Method according to claim 3 characterized in dosing in the mixture a percentage in weight of inorganic ligand from 30% to 40%.
12) Method according to claim 4 characterized in dosing in the mixture a percentage in weight of organic ligand from 20% to 30%.
13) Method according to one of the previous claims characterized in shaping a portion of the element using a formwork equipped with a shaped floor made of stiff resin or silicone rubber.
14) Method according to claim 13 characterized in decorating the shaped portion of the element using, in the correspondent mixture portion, powder colourings, like inorganic oxides.
15) Method according to claim 10 or 11 characterized in pressing the mixture in the formwork through a compression male of a press.
16) Method according to claim 12 characterized in using a formwork having a tight closing cover and pressing the mixture in said formwork through ligand expansion.
17) Method according to claim 16 characterized in using a ligand comprising an expanding resin.
18) Method according to claim 16 characterized in using a cover hinged to the formwork and clamping to the latter through closing means.
19) Method according to claim 1 or claim 13 characterized in using a mixture of greater density and/or hardness onto the floor of the formwork and a mixture of lower density in order to reach the filling mixture volume.
20) Method according to claim 19 characterized in using a mixture of greater density having a ligand percentage in weight from 6% to 15% or less, mixed at least with expanded glass grains of little or smallest size.
21) Method according to claim 19 characterized in adding to the greater density mixture pigments or other decorative elements.
22) Method according to claim 20 characterized in pre-compacting the greater density mixture with several rollers placed transversally in a plane tilted in the advancing direction of the forming belt.
23) Method according to claim 22 characterized in picking up the needed portion from forming belt with an vacuum plane having a perimetrical punch and laying said portion into the formwork.
24) Method according to claims 12 and 19 characterized in using a mixture of lower density having a percentage in weight of ligand from 20% to 30% or more, mixed at least with expanded glass grains of big or biggest dimension, eventually mixed with grains of lower dimension.
25) Method according to one of the previous claims characterized in using reinforcement fibres in addiction to, or instead of, expanded glass grains. 26) Method according to one of the previous claims 1, 2, from 4 to 7, 9 and 10 and from 12 to 25 characterized in using as a ligand a bicomponent polyurethane resin comprising polyol or polyalcohol and isocyanate in weight ratio of about 1 : 1 or more.
27) Method of laying the element realised by the method of any of the previous claims characterized in embedding in the concrete castings one or more elements with at least an in view face.
28) Plant for making a coating element according to the method of one of the claims from 1 to 26 characterized in that it comprises at least:
- first dosing means (20) for a ligand and for expanded glass grains, and/or other solid elements;
- first mixing means (2) fed by the first dosing means (20): - a formwork (8) having perimetrical containing walls (9), fed of mixture by the first mixing means (2);
- a cover ( 11 ) of the formwork (8) ;
- extracting means to extract the hardened and formed element from the formwork (8).
29) Plant according to claim 28 characterized in that it comprises a first conveyor belt (6) placed between the first mixing means (2) and the formwork (8).
30) Plant according to claim 29 characterized in that it comprises a second conveyor belt (7) placed downstream and below to the first conveyor belt (6) to allow the second conveyor belt (7) picks up the mixture conveyed by the first conveyor belt (6).
31) Plant according to claim 30 characterized in that it comprises control means of the differential speed of said conveyor belts (6, 7) fit to run at different speed.
32) Plant according to claim 28 characterized in that it comprises second dosing means (120) and second mixing means (102), the first and second mixing means (2, 102) having an outlet with correspondent ducts (4, 104) flowing into the first conveyor belt (6).
33) Plant according to claim 28 characterized in that it comprises a drawer (105) having a slit placed between the mixing means (2, 102) or the ducts (4, 104) and the first conveyor belt (6).
34) Plant according to claim 32 characterized in that the mixing means (2, 102) comprise a couple of crown wheel mixers (3).
35) Plant according to claim 28 characterized in that the form work (8) has a shaped floor (16) made of stiff resin or silicone rubber.
36) Plant according to anyone of the previous claims from 28 to 35 characterized in that it comprises microwaves emission means (13) directed in the form work (8) direction, the latter having a cover (11) permeable to the microwaves of said microwaves emission means (13).
37) Plant according to anyone of the previous claims from 28 to 36 characterized in that it comprises cooling means associated to the mixing means (2, 102) in order to cool the mixture.
38) Plant according to anyone of the previous claims from 28 to 37 characterized in that it comprises conveying means for the formworks (8) synchronised with the conveyor belts (6, 7).
39) Plant according to anyone of the previous claims from 28 to 38 characterized in that the cover (11) is hinged to the formwork (8) that comprises closing means of said cover (11).
40) Plant according to anyone of the previous claims from 28 to 38 characterized in that it comprises pressing means (30) acting onto the cover (11) in order to compress the at least a mixture contained in the formwork (8).
41) Plant according to claim 40 characterized in that the pressing means (30) are of the multi-housing type with independent opening for the compression of several formwork (8).
42) Plant according to anyone of the claims from 28 to 41 characterized in that it comprises control means, for example of electronic programmable type, for the programmed activation of each element of the plant (1 ).
43) Coating element carried out by the method of anyone of the claims 1-26 or by means of the plant of anyone of the claims 28-42 characterized in that it comprises a matrix ligand for expanded glass grains and/or other solid elements.
44) Coating element according to claim 43 characterized in that the ligand comprises an expanded organic resin.
45) Coating element according to claim 43 characterized in that the ligand or a portion thereof is mixed with pigments and/or decorative elements at least in the in view face.
46) Coating element according to claims 43 or 45 characterized in that at least the in view face of the element is shaped.
47) Coating element according to claim 43 or 45 or 46 characterized in that it comprises a layer adjacent to the in view face, said layer having a bigger density than the remaining thickness of the element.
48) Coating element according to claim 47 characterized in that the bigger density layer includes expanded glass grains of lower dimension in comparison with the mean grain dimension in the remaining thickness. 49) Coating element according to claim 47 characterized in that the bigger density layer has a percentage in weight of organic ligand ranging from 6% to 15% or lower and the remaining thickness of the material has a percentage in weight of organic ligands ranging from 20% to 30% or more.
50) Coating element according to anyone of the claims 43-46 characterized in that the ligand is inorganic and it is in a percentage in weight ranging from 30% to 40% or it is organic and its percentage in weight ranges from 6% to 15%.
51) Coating element according to anyone of the claims 43 to 49 characterized in that the ligand consist of a bicomponent polyurethane resin comprising polyol or polyalcohol and isocyanate in weight ratio of about 1:1 or more.
PCT/IB2007/002275 2006-08-07 2007-08-07 Method for obtaining and laying a coating element, plant for making the coating element and coating element so obtained WO2008017931A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPS2006A000026 2006-08-07
ITPS20060026 ITPS20060026A1 (en) 2006-08-07 2006-08-07 PROCESS TO OBTAIN A COVERING ELEMENT THAT AT THE SAME TIME IS A THERMAL INSULATING MATERIAL (REVOLVING)

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WO2008017931A2 true WO2008017931A2 (en) 2008-02-14
WO2008017931A3 WO2008017931A3 (en) 2008-04-24

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102010006092A1 (en) * 2010-01-28 2011-08-18 Matthes Farben und Putze OHG, 91217 Decorative paint useful for layered application to a surface, comprises a binding agent and granules

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US3734661A (en) * 1970-10-19 1973-05-22 Pottuz L Joly Apparatus for the continuous manufacturing of construction panels
FR2191551A5 (en) * 1972-06-29 1974-02-01 Keller & Co Ag Noninflammable thermal insulation mouldings - based on perlite granules in resin binder
US4297311A (en) * 1978-12-07 1981-10-27 Conwed Corporation Method of manufacturing improved mineral board
US6177179B1 (en) * 1995-09-22 2001-01-23 Schock & Co. Gmbh Integral, board-like component and process for its production

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US3734661A (en) * 1970-10-19 1973-05-22 Pottuz L Joly Apparatus for the continuous manufacturing of construction panels
FR2191551A5 (en) * 1972-06-29 1974-02-01 Keller & Co Ag Noninflammable thermal insulation mouldings - based on perlite granules in resin binder
US4297311A (en) * 1978-12-07 1981-10-27 Conwed Corporation Method of manufacturing improved mineral board
US6177179B1 (en) * 1995-09-22 2001-01-23 Schock & Co. Gmbh Integral, board-like component and process for its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010006092A1 (en) * 2010-01-28 2011-08-18 Matthes Farben und Putze OHG, 91217 Decorative paint useful for layered application to a surface, comprises a binding agent and granules
DE102010006092B4 (en) * 2010-01-28 2017-03-02 Matthes Farben Und Putze Ohg Use of a paint

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WO2008017931A3 (en) 2008-04-24
ITPS20060026A1 (en) 2008-02-08

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