LU87218A1 - METHOD FOR THE PRODUCTION OF MULTILAYERED BITUMEN PLATES CONTAINING MULTIPLE CARRIERS - Google Patents

Description

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ν 'Ô "T n fl O IjRand-dughë de Luxembourg - - - _ | \« ®revetN ° «L ^ -1 Q Monsieur le Ministre - du ...... 1.9 ....... may. ...... 19..8.8 ...................... IPpPC de l'Economie et des Classes Moyennes .., Service de la Propriété Intellectuelle T tre de 1Vré ............................................... ..- I - LUXEMBOURG · ......

Demande de Brevet d'invention ----- r -------------------------------------- ------------------- (1) I. Requête ..Kémikal .... Eÿ) itô.aiiÿagipari ... ¥ àllalat, ...... Kazinczÿ ".XL ._... 9 .., ...... Hrl.0..7.5." Budüpest.; ..._ G ^ Qr.- (2).

megyei Allami Epitoipari Vàllalatf MeszAros L: u. 10. H-9023 Gyôr; Alkotô__

Ifjusàg Egyesülës, Régiposta u. 19, Η-1Θ52 Budapest, représentées par______

Mbnsieur Jean Waxweil ^, 55 rue des Bruyères, Howald, agissant en quali-, 3x ................................

dépose (nt) ce dix.rBeuf ..... in.ajL ..... iE.xl ....... ne.uf ....... Q.en.t._ .. .g.ua.tB.s; ~ MÎn.gt ~ h, iLl.t ________________ (4) à ........ 15 ../. 0.0._ heures, au Ministère de l’Économie et des Classes Moyennes, à Luxembourg: 1. la présente requête pour l’obtention d’un brevet d’invention concernant:

Process ...... for the production of multilayer, multiple____ (5)

Bituminous plates containing carriers__________________________________________________________ _____ 2. la description en langue ... Allemande__________________________________de l’invention en trois exemplaires; 3 ...................... 1 .......................... .................... planches de dessin, en trois exemplaires; · 1q λc iqoq 4. la quittance des taxes versées au Bureau de l'Enregistrement à Luxembourg, le. .. ·. tr. P 0______; 5. la délégation de pouvoir, datée de________________________________________________________ le________________________________________________; 6. le document d’ayant cause (authorization); déclareÇnt) en assumant la responsabilité de cette déclaration, que l ’(es) inventeur (s) est (sont): (6) Jôzsef FalaJky, frbzsar u. 44 / b, h-9028 Gyôr; Jànos Ma tus, Bacsô B. u. 31 / a, ”|| _9Q23 '' '' i £ iyor; zôltéïi Pôdèr, Konini u. H-9Ö28 Gyôr; Ervin Vértesï7 ~ ŒolnD%, u ....... 24 / c, .._ Hr820Q..lfeszprân; .... Jânos ... j! Fclnâr: / __ JÜ ^ teleki - u ___ 24 - / _ H = l2ûl- Budapest; ._

Gvula Molnàr, TAtra ter 5, H-1204 Budapest; Jôzsef HorvAthf RAkdnzi ut 75r H-81081 Budapest; Bêla Riez, Cineqè u. 8 / b, H-1121 Budapest______ revendique (nt) pour la susdite demande de brevet la priorité d'une (des) demande (s) de (7) _______________________ brevet ............... : _déposée (s) en (8) _H.QXLg.rie _____ le (9) ______ 20 May 1987_____________________ sous le N ° (10) "jil ^ ____" _____ au nom de (11) élit (élisent) domicile pour lui (elle) et, si désigné, pour son mandataire, à Luxembourg _________....

55 rue de s Bruyères, Howald _______ ^ sollicite (nt) la délivrance d'un brevet d'invention pour l'objet décrit et représenté dans les annexes susmentionnées, avec ajournement de cette délivrance à _________ / La _______ a ......... ...................... mois. (13)

Le déposant · / mandataire: _________________________________ J2__________________________________________________________ (14) .. Π. Procès-verbal de Dépôt '- La susdite demande de brevet d’invention a été déposée au Ministère de l’Économie et des Classes Moyennes,

Service de la Propriété IntellectugJle44 »uxembourg, en date du: 19.05.1988 '-. a / f y '··. \ Pr. Le Ministre de l’Éconi «fie et des Classes Moyennes, _ à 15 ,, / ... 0 0 heures fi <jÉp | k \ \ V p. ch /

Lf. / ΊI Le chef du se ^ j ^ ede propriété intellectuelle,% 2 cy 1> _ ~ _] / \ _ - '' _ EXPLICATIONS RELATIVES AU FORMULAlSfeeS ^^^ JiiH1 ^ (1) s'il ya lieu "Demande de certificat d'addition au brevet principal, à la demande de brevet principal No ............ du ............ ”- (2) inscrire les nom, prénom, profession, adresse du demandeur, lorsque celui-ci est un particulier ou les dénomination sociale, formme juridique, adresse du siège social, lorsque le demandeur est une personne morale- (3) inscrire. les nom, prénom, adresse du mandataire- agrée, conseil en propriété industrial, muni d'un pouvoir spécial, s'il ya lieu; "représenté par ............ agissant en qualité de mandataire” (fc / - -J - (4th ) date de dépôt en toutes lettres- (5) titre de l'invention- (6) inscrire lemoms, prénoms, adresses des inventeurs ou l'indication "(voir) désignation séparée (siuvra)”, lorsque ladési- _ / gnation se fait ou se fera dans un document séparé, ou encore l'indication ”ne pas mentionner”, lorsque l'inve nteur signe ou signera un document de non-mention àjoindreàune désignation séparée présente ou future - (7) brevet, certificat d'addition, modèle d'utilité, brevet européen (CBÈ), protection internationale (PCT) - (8) Etat dans leauel le premier dépôt a été effectué ι ·

PRIORITY STRESS

the ratent registration

In Hungary from May 20, 1987 under No. 2251-2250 / 87

DESCRIPTION

FOR A PATENT APPLICATION IN

GRAND DUCHY OF LUXEMBOURG

Kémikal Epitöanyagipari Györ-megyei Allami Alkotô Ifjusig Egyesüls Vàllalat Epitbipari Vàllalat Régiposta u. 19 s

Kazinczy et al. 9 Mészàros L. u. 10 H-1052 Budapest H-1075 Budapest H-9023 Györ

Process for the production of multi-layer bitumen plates containing several supports.

f. '' ». - 2 -

The invention relates to a method for producing multilayer bitumen plates containing several supports.

In the construction industry, when it comes to covering flat roofs, heavy slabs of bitumen are prefabricated on site to simplify the work or are laid on flat roofs using the double-layer method. Such methods are described, for example, in DS-PS 4 151 025 and in DAS No. 1 658 77'8v.

In addition to bitumen, other materials are common for the production of roof coverings, for example the single-layer plastic film or the rubber film. Incidentally, these are not only used for roof coverings, but generally for insulating buildings, as protection against groundwater or as a waterproof layer in water basins and water reservoirs.

With these technologies of the plastics and rubber industry. However, generally only single-layer tapes, plates or foils can be produced that are as wide as the rollers of the calender used. The use of the products in practice has two difficulties: on the one hand, the corresponding removal of moisture is difficult to solve, on the other hand, single-layer ones The disadvantage of foils is that the entire roof insulation must be replaced in the event of damaged areas. The repair of flat roofs is otherwise problematic, the cost factor and durability of such repairs are unsatisfactory, and their control is difficult.

The aim of the invention was above all to remedy these defects, by means of a roof insulation construction which forms a “soft” covering (in contrast to bricks), but at the same time is much less susceptible to damage and can be prefabricated, which means that only one on site '- 3 - j?

Minimura of skilled work is required.

The method according to the invention was aimed at improving the properties of bituminous insulating plates, namely because the bituminized insulating construction results in a soft covering which, however, can also provide load-bearing functions and also has a layer which is permeable to water vapor.

The invention accordingly relates to a method for producing multilayer bitumen plates provided with a scattering material. It is characteristic of the process that carrier layers of fleece or polyester mesh fabric wound on rolls are stacked on top of one another between guide rollers and guided into a tub containing bitumen heated to 120-140 ° C and fixed there, an insulating layer is applied to this composite carrier by means of application rollers and the thickness of the Bitumen coating is regulated, then the coated carrier in a water treatment room is set to a temperature suitable for lamination, slightly above the softening point of the bitumen, its upper layer is treated with a scattering material and on its lower, bituminized side a water vapor permeable felt layer provided with air channels Plastic or another suitable material is laminated on and the bitumen is solidified by cooling on cooling rollers to below 40 ° C. In this way, a load-bearing plate can be produced, which results in a covering that adapts to the surface, a soft covering, but is at the same time resilient and f '- 4 - insulates against water. The water vapor permeability is guaranteed by a porous layer.

One of the backing layers, for example the lower one, is a fleece made of disordered plastic or glass fibers, the other a polyester mesh, which can be provided with a surface treatment. The polyester mesh is knitted or its threads are otherwise interlinkedΓ

To sprinkle the layer drenched and coated with bitumen, sand with a grain size of 0.2-0.6 mm, but also talcum, powdered grain or slate powder can be used as the scattering material.

The porous layer, which is laminated onto the supports, which are fastened to one another with bitumen and provided with an insulating coating, consists of a felt, suitably plastic felt, which is resistant to decay.

The bituminizing takes place at a temperature of 145-155 ° C, the lamination in the still soft state of the bituminous coating treated with water, because in this way the porous layer can be embedded in the bitumen coating without additives.

The water-insulating properties of the bituminized plate produced according to the invention are ensured by the double carrier treated with bitumen, which is elastic but also firm. Bitumen is understood here to mean all types of bitumen, for example also modified bitumen which contains additions of plastic or synthetic rubber.

Any material layer with a loose structure that is permeable to water vapor, does not rot and is resistant to fermentation bacteria can be used as the porous felt layer. The thickness of this layer in the compressed state is preferably at least 2 mm, the air channels have a cross section of at least 1x2 mm, advantageously 5x10 mm. Materials of this character are, for example, the needled felts.

This porous layer allows in the barely under the insulating layer - when it rests on the roof - a balance of the vapor pressure and at the same time forms a corresponding spacer layer between the insulating layer and the roof surface, which leads to the fact that the insulating layer is stress-free.

The manufacture of the plate according to the invention is explained in more detail below with reference to the accompanying drawing.

The device suitable for the process consists of the supply and unwinding units 1, 2, 19 for the rolls of the carrier materials, the rollers 3, 4, 16, 20,. the devices 5, 6,?, 8, 9 which serve to soak the carrier material and form the insulating coating, the devices and devices 11, 12, 13, 24, 25, 26, 27, 28 which form the cooling device to compensate rollers 21, 22, 23, the memory 29 ', further a winding structure and possibly other units. The devices 14, 15 serve to apply the scattering material to one side of the bituminized carrier, the devices 17, 18, 19 serve to laminate the porous felt layer to the other side of the bituminized carrier.

The devices which superimpose the reinforcing carrier layers and which transport this double layer are shown in

T

- 6 - laterally adjustable, free-running ends and storage and unwinding units 1, 2 arranged offset in height with respect to one another as well as rollers 3, 4 which already lay layers on top of each other.

A container 14 and a rotatable spreader roller 15 located on the bottom thereof are used to spread the spreading material.

In the water treatment chamber 11 following the impregnation of the layers or the application of the insulating layer there are wetting guide rollers 12, 13 which are made of wood, expediently smoothed wood 4>.

The web is continuously pulled up by the. coordinated drive of the impregnation and application rollers 6, 8, 9, the laminating rollers 17, 18 and the rollers 24, 25, 26, 27 and 28 of the cooling section,

The method will now be explained in more detail using an exemplary embodiment.

The first step is to coat the layers of the reinforcing support structure, i.e. lay the glass fiber fleece and the polyester mesh on top of each other. This is done by means of the winding 1 for the polyester network, the winding 2 for the glass fiber fleece and the guide roller 3. The windings 1 and 2 are arranged in a freely rotatable manner on a winding mandrel which is fastened in a winding core placed on a trestle. The wraps are adjustable in the lateral direction so that the edge course can be regulated or maintained. The windings 1 and 2 are offset in height from one another so that the material unwound from the upper roll can be run onto the web unwound from the lower roll. The exact coverage is achieved - 7 - by pulling the edges a little in the transverse direction.

A material whose mesh size is 4x4 mm or 6x6 mm, whose square meter weight is not less than 40 g / m ^ and which has at least 120 in the longitudinal direction and at least 100 in the transverse direction is expediently used as the polyester net. The elongation at break should be at least 15%.

The web consisting of the superimposed supports reaches the bitumen trough 6 with the aid of the guide roller 4.

This is continuously fed with bitumen from a container (not shown) located above the tub 6 via the heated bitumen line 5. The temperature of the bitumen in the tub 6 is 120-140 ° C. The bitumen is applied by means of the coating roller 7, which is located in the tub 6, and the heated roller pair 8 and 9. The gap between the two latter rollers is adjustable, which is the setting of the.

. The thickness of the covering is used. This pair of rollers is a driven pair of rollers and thus one of the elements that continuously move the web.

A bitumen with the following minimum quality parameters is expediently used as bitumen: softening point at least 85 ° C., breaking point according to Fraas max. 0 ° C, penetration max. 50, filler content at most 25%.

The carrier web provided with a bitumen covering of appropriate thickness reaches the water treatment room 11, in which the wetting guide rollers 12, 15 are located, which are expediently made of smoothed wood.

- 8th -

Before the treatment with water, it is advisable to smooth the upper coating surface with the heated smoothing knife 10. The water on the hot bitumen surface evaporates, the upper part of the layer cools down and is suitable for lamination.

The semi-finished product treated and smoothed with water passes into a spreading and laminating unit, in which the bitumen surface facing upwards is sprinkled with scattering material and the mushroom layer is laminated onto the bitumen surface facing downwards.

The scattering material is preferably washed, classified sand with a grain size of about 0.2-0.6 mm. This is sprinkled from the container 14 of the scattering material by means of the spreading and metering roller 15 onto the coated carrier.

The laminating device consists of the unwinder 19 and the driven laminating rollers 1? and 18 »These two rollers also participate in the continuous transport of the web.

The v guide rollers 16 and 20 are used to feed the web in and out. The bale of the lamination material can be rotated freely in the unwinding device 19, but the mandrel of the unwinding device can be adjusted to match the carrier web and the web of the lamination material.

The lamination material is a porous layer provided with air channels, for example stapled felt or in particular felt needled from synthetic fibers. The material is suitably polyester (PE), polyacrylonitrile (PAN) or other plastic, from whose fibers the felt is made by carding, needling and heat setting. These non-woven textiles, fleeces -9 - have the following parameters, for example? average tensile strength (W / 5 cm) in the longitudinal direction 800 in the transverse direction 500 elongation at break (%) in the longitudinal direction 80-100 in the transverse direction 50-70.

The lamination is carried out when the underside of the bituminized carrier is still soft, because in this way the fibers of the felt are embedded in the bitumen coating and the entire surface is fixed. This fixation is achieved by means of the roller 18.

The laminated, bituminized web comes from the laminating device into a conventional compensation section, which is provided with the rollers 21, 22, 23. The compensation section is followed by a cooling section, which consists of the cooling rollers 24, 25, 26, 2? and 28. The plate is cooled to below 40 ° C on this cooling register, which causes the bitumen to solidify. From here, the product arrives in a buffer, which is also common. 29 and then in direction 30 to wind up. When a winding is full and the winding core has to be changed, the product, which continues to arrive in the meantime, is moved into the buffer store 29. The winding machine, not shown, includes an electrical measuring counter, a cross cutting machine and a pushing surface. The latter two are automatically released by the electrical meter, the thrust surface is also suitable, the full

Let the wrap slide down when you remove it.

By the way, the wraps of the finished material stand on their own due to their reinforcing support, if you divide them up vertically.

The scattering and laminating unit and the cooling section are driven directly by the sections of the device that serve the different work steps. For mechanical reasons, any minor differences in the peripheral speed (+ _ 10%) of the laminating rollers 17 and 18 and the rollers 24-28 of the cooling register can be taken up and compensated for by the rollers 21, 22, 23 of the compensating section. Due to its mass, the roller 22 is suitable for compensating for differences, the rollers 21 and 23 are free-running.

The compensation can be further improved by a sensor 31 or its signal. The remaining units are driven in a coordinated manner, for example with a drive known for such purposes (Ward-Leonhard system).

The device can be supplemented by various other auxiliary devices. For example, the cooling effect of the rollers 24, 25, 26, 27, 28 of the cooling register can be improved by air flow, for example by air drawn through it. Additional cooling rolls can also be used. Other auxiliary facilities can be, for example

Thickness gauge to control the thickness of the covering, with the output signal of which the gap between the coating rollers 8 and 9 can be controlled. Temperature regulation can also be built into the device.

Claims (4)

1. Process for the production of multi-layer bitumen plates provided with a scattering material, characterized in that carrier layers of nonwoven or polyester mesh fabric wound on rolls (1, 2) are layered on top of one another by means of guide rollers (3 »4 ·) and in one on 120-14-0 ° C heated bitumen containing tub (6) and fixed there to each other, an insulating layer is applied to this composite carrier by means of application rollers (7, 8, 9) and the thickness of the bitumen coating is regulated, then the coated carrier in a water treatment room (1l) a temperature suitable for lamination and slightly above the softening point of the bitumen is set, its upward-facing surface is treated with a scattering material and a water-vapor-permeable felt layer provided with air channels is laminated onto its downward-facing side and by cooling rollers (24, 25, 26, 27, 28) cool the bitumen below 4-0 ° C is increased. 2. The method according to claim 1, characterized in that the two carrier layers are fixed to one another at 115-14-5 and the insulating layer is applied at 105-135 ° C, 3, Method according to claim 1, characterized in that the insulating layer is cooled by contact with water to a temperature above the softening point, expediently to about 100 ° C. - 12 - 4. The method according to claim 1, characterized in that the water vapor permeable layer consists of air channels of 1x2 mm, suitably of 5x10 mm cross-section having needled plastic felt.