DE1469556A1 - Weather-resistant, slab or strip-like asphalt product and process for its manufacture - Google Patents

Description

DR.-INS.

HÖGER - EUG. MAIER - LEGAL LAW 1 469556 PATENT LAWYERS IN STUTTGART

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Owena-Corning Fiberglas Gorporation _s £ ο 1 ed ο, OMo ₉ U ₀ S ₀ A ₀

Weather-resistant, flat or tantal-like Asphalt product and process 3U of its manufacture.

The invention relates to novel roof and wall coverings and their production and in particular on weather-resistant plate or tape-like products, Made from asphalt reinforced with fiberglass

As bituminous material, never for example asphalt; do. the

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BATH ORIGINAL

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"Cheapest waterproofing materials it as a standard material used by the roofing industry Build in their cousin-proof protective products, vjie for example Roof coverings, shingles and wall coverings used extensively. However, asphalt itself does not have any certain properties in terms of stiffness, wear resistance, Nail support and compliance with the rules changing tea temperature conditions, so that to adapt to Roof covering and wall covering materials this bituminous material must be combined with other materials in order to compensate for its disadvantages, but now has the advantage To take advantage of the cheap asphalt, the added ones must also be used Materials are cheap or have such a property at higher costs that they desired properties already result in economically justifiable amounts added.

. In practice, a cheap base material, such as rag felt, including waste paper, cardboard, mechanical paste, etc., is combined with a cheap asphaltic impregnating agent of an oil-like character, which necessarily has a low viscosity, in order to allow the felt to be impregnated so that the carrier «« basis for the desired product can now be formed. the

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Lumpenfilzbasis can "for example, by soaking" are treated special, "in any case, but must have the Tränkungs- or impregnating properties that it forms a complete combination with the Lumpenfilz ₀ As a result, the Tränkungs- or impregnation · = · middle usually according to its Ability with regard to the impregnation of the rag felt and not with regard to its weather resistance. A weather-resistant asphalt layer of higher viscosity is then applied in the sense of a kind of "ice coating" over the soaked ** rag felt carrier. The outer ■ asphalt layer is specially selected according to its weather resistance, since it serves as the main weather protection for the surface to which the product in question is applied This relatively thin layer of waterproof asphalt is coated with grains that serve as "sun reflecting agents to protect this layer and also form a rough surface against scratching the weather-resistant asphalt layer". ^!

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The lifespan of such a product results both from the strength of the weather-resistant surface layer as well as the degree of chemical inertness and the dimensional stability of the soaked felt base of the Product. As the impregnation agent for such a product Asphalt of lower viscosity contains, generally of a more volatile property than that outer weather-resistant asphalt layer, which is in the immediate Contact with organic material is of a wick-like character, so the impregnation or impregnation niermittel the opportunity to get on the edges of the self To disperse and consume the product, especially as it ages, The wicking properties of the felt contribute to the volatile materials embedded inside at the edges in such a way that ultimately the The carrier becomes dry and begins to rot, this results in changes in shape and a so-called lifelessness, so that now the product easily moves away in strong winds can be blown «,

With regard to these properties of the known products, the main task of the invention is to create _{a new f} eusam.Tiengesetatee asphalt product mix,

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that for Afcrolldaohcovering, for clapboard and for wall coverings is suitable, with this novel construction, the half «of the usual asphaltic products thereby avoids that these products have an improved dimensiorta-ie stability, greater fire resistance and have a longer service life of the wearer

According to the invention, the new product is moisture-proof and has a weatherproof material that offers greater fire safety and greater wind resistance and also has higher weather resistance than previous products,

According to the. According to the invention, the greater fire safety of the surface is achieved by a treatment including a catalyst, which enhances the fire-insulating effect or, in other words, has a flame-blowing effect, so that self-sustaining combustion can now occur and furthermore the spread of flame resistance is limited The new asphalt product according to the invention has high strength and is a temperature-resistant material that trieugnle gives a «high dimensional stability, so that ⁽ ' now oils feiohheit | the flieasable nature and the E

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dimensional stability of asphalt for the available product * sen is compensated, especially when -high temperatures are present to which such products have been exposed to direct sunlight or under dangerous circumstances, such as a fire in a building.

According to the invention, a reinforcing material of high tensile strength is added to the product, so that there is an improved nailing strength and thus the product can easily be used to protect buildings is significantly reduced · · "' _v

According to the invention, such products are produced by embedding two spaced-apart mats or strips of continuous glass fibers in the matrix, with an asphalt body being arranged between these mats be attached to the weatherproof surface of the product, and the result is a rough, strong surface that can withstand the requirements of installation and the " fp | t" rtn load "

ORIGINAL INSPECTED

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The continuous glass fibers in this construction can in the spaced-apart mats as individual continuous fibers or in twisted or untwisted Strands are available, so that the product at the .ge « give the desired place a special strength " In this sense, improved nail holding properties can be imparted to the product by making bundles of cut or chopped glass fibers are concentrated in the zone through which the nails pass, so as to do so to securely attach the product to the surface to be protected * The concentrations of glass fibers below the Nail heads improve the tensile and similar tear resistance of the product to a considerable extent and thus the properties in relation to the nail holder.

Generally speaking, can the product be compared to an I-beam _? the spaced-apart mats of glass fibers across the thickness of the shingles of the covering or rolling material.The glass fibers have a high tensile strength and a high modulus, which is practically independent of the temperature, so that the limits in the strength of the asphalt in the event of changes the temperature above "wound". In addition, these spaced-apart hats on a ^ v ^ sjin ^ e construction, in which the glass fibers

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be close to the outer surfaces of the product can, a holding network for the asphalt on the surface and thus a greater dimensional stability in relation to the surface material than would otherwise be possible with the flowable surface of asphalt. The stability the asphalt surface · is increased by the presence of the fibers so much that the need for the relatively expensive outer grains is significantly reduced, so that in many cases the grains are omitted entirely can be. This occurs in particular with the inventive Construction, as this product can use a weather-resistant asphalt throughout the room, which means

there is no need to apply a special weather-resistant layer as with the usual known products. When the usual surface grains of crushed Mineral material are used, however, the proximity of the network of glass fibers provides a basis for at least partial embedding within the outer ones Position of the glass fibers, so that additional protection and thus a longer service life of the surface is created.

As the spaced chains or webs made of fiberglass can be relatively thin and still have an additional capacity a strength of the asphalt body

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result, the webs can be extremely porous and so allow an impregnation with asphalt without further ado. This allows asphalt of higher viscosity, for example one with weatherproof properties is used on the whole thickness of the product thus formed will.

Another feature of the product according to the invention is the fire resistance, which is given to the product by the special construction. The usual asphalt constructions for covering materials result in high heat from flames, which lasts only a few minutes, charring the asphalt surface, which is itself very fire-resistant, but generally cracks due to the heating and swelling of the lower surfaces under this charred surface, so that now new asphalt is exposed over the surface of the product for further feeding of the flames and this asphalt can flow out. However, since according to the present invention an inorganic, non-flammable network of glass fibers is arranged immediately below the surface of the product, there is a base for the charred surface, so that the charred material is prevented from becoming gigantic during the spread of the flames.

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Thus the Feuerwideratand is increased because the charred surface by the action of fire can not burn, ee results soon, such a state that the flames are extinguished. Since the surface now forms the only basis for the flame, it soon goes out, while with the other asphalt products there is constant expansion and the flame is maintained. The fire safety of the product

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according to the invention is further increased in that a Asphalt is used with a residual catalytic reaction that occurs in bulk as a result of an incomplete $ more catalytic! Reaction is inherent in the treatment of the raw asphalt. This dormant reaction is caused by the flames that the The product is exposed, activated, so that gasification and encrustation of the asphalt surface and thus blowing out the flame is favored.

Another advantage of the invention of the catalytically activated asphalt is that it does not have so much contains oil and therefore not so easily any mineral content Surface notemutat, which may be present ■ a «*

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The fire resistance is further increased according to the invention by the fact that concentrations of chopped fiber strands or pair bundles of a certain length are provided at the edges of the product, which are exposed during installation on the critical surface to be protected. The presence of a strip-like concentration of such fibers supports the reduction of flame spread by «blocking the outflow of asphalt when the product is heated. Therefore, when the flame reached the edge of a conventional clapboard type, there was a tendency for the flame to move on over the edge and then decelerate and move back towards the edge. Ee is believed that as a result of initial combustion and maintaining the anechliessendem structure of a crust or the accumulation of combustible material now, the flame has a tendency, is attributable to the edge of the ^shingle: pull "Sine further heating of the shingle or plate; increases the level of the asphalt and an analogous additional gate rings of the flame. The advancing flame is in turn delayed by the encrustation and the build-up of combustible products. In contrast, the presence of chopped strands in the ^/

Edge of the product according to the invention the other. 9.09813 / 1017 *

AL INSPECTED

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Flow of asphalt and thus stops the flame from continuing through this same outflow of fresh Aaphalt back «,

As a result, the flame propagation speed becomes a product according to the invention greatly reduced by at least three features or processes, namely

(1) see the activation of the dormant käffcaly ti Reaction,·

(2) the presence of a stabilized, reinforcing char surface with a, corresponding reduction in the tendency to form cracks, · ·. · V ... and *' . ·

(3) restricting the flow of fresh asphalt by plugging the exposed edges of the produce with chopped strands of fiberglass.

Another feature of the invention is the adaptability of the product to the corresponding. Construlations with a level of rigidity as desired according to the turn. If, for example, the product is to be used in a roof covering, such rigidity is desirable that the product can be properly positioned against the surface to be protected without the risk of it remaining

Ben puts on. In this context it is desirable «, '' ■ : 909613/1017 _. - 13 - 5

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that the product is so stiff that it returns to its natural position leg fluttering ₅ so that later gusts niolit in all, "give 'everyone a lift eraautea" Further, in the veraiSLf te .. ». Produce such an increase in strength ervyüiujeh '; dasa one constant exposure to wind currents, fl .h "a constant fluttering of the EraeugniBasa" does not lead to a weakening in such a way that now the cover practically loses;} edea Sohutzvsert. These features result from the present invention through the adaptability of the construction under Ye: r? Enaung of different degrees of rigidity corresponding to a distance between the glass fiber webs in Era-iu ^: ΐε «With a large distance between the webs or mats, if alao, for example, the mats have their coarsest abatan close to the outer surfaces of the product, this results in the great rigidity »This is particularly desirable in a clapboard construction if the sc-'lnqr-un are very thin, if on the other hand the product is to serve as a light roof covering So a certain degree of flexibility is desired, so that the Erisoagr.Lies can now be rolled up for shipping and easy installation and then easily adapts to the protective surface in question when it is unrolled. In a fi

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'bath

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be reduced so that there is greater flexibility results than is desirable in a clapboard construction is · With this you can alao the construction according to the Use the desired rigidity and flexibility to be imparted *

The products according to the invention also have a significantly reduced temperature susceptibility, if at the temperature of the usual products becomes high, the asphalt becomes less stiff and less fluid. However, since the glass fibers in normal, in such a cast temperatures that occur have practically no change in their properties, their incorporation into these results in As ~ It maintains the rigidity even at high temperatures and thus a much greater dimensional stability.

The fiberglass sheets act in a certain sense as a retaining membrane for the asphalt in which β ie are embedded. If the temperature increases, the inert glass fiber membranes act as a large network with joints and loops, even if the embedding material has a tendency to flow, into which the asphalt penetrates up to the surface. Thus the height of a 9 0 9 813/1017 _ _Ζ5 _ bad cri

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Products produced by Eliessens are completely insignificant and can even be described as non-existent «. Thus, after installation, a roll-up roof * or f & tel construction according to the invention maintains a stable order for the adjacent, stinking or overlapping iafel or sheet of a similar type, and the result is a service life that is much longer than that of the usual asphalt products.

Another feature of the invention is the adaptation of the glass fiber webs to the impregnation asphalt, so that a demolition asphalt or fire-proof asphalt can now be arranged over the entire thickness of the product has porosity _s are selected for the reinforcing material in relation to its impregnation and £ ränkuiigsfähigkeiten. In the present case, however, the fiberglass web only needs to have a very thin dimension and can therefore be extremely porous and still have reinforcement and the necessary retention features so that soaking and covering are achieved with the aid of a large area of asphalt

that may not necessarily correspond to their Impregnation characteristics but in relation to their weather resistance> ■. ·

speed are selected - 16 -

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Asphalts with good WettereigenjEfchaften generally have a high viscosity and do not give economically feasible saturation of the common organic Lumpenfilzba-'sismaterialien ₉ In the present invention, however, the asphalt used in the product throughout the starch may be the same, so the £ now a Matrix with a high-quality weather-resistant material, which is reinforced on the surface by the glass fiber panels.

The product according to the invention is also suitable better for absorbing grainy ones due to its peculiarity Mineral materials », such as crushed Stone particles because an upper Web of fiberglass is present, the eur stabilization serves the outer asphalt surface. Because the Fiberglass panels in the upper surface of the product are provided, the shredded itfjrner can be in the free, more stable asphalt will be pressed in ^ so that there is a greater hold, or? it can these particles also partially in the glass fiber web be embedded. The fiberglass web therefore bids in in a certain sense a network that serves as a support smaller stone particles and thus the. '. nis gives greater robustness and stability,

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are not present in the known products "

As mentioned above, the fact that the glass fibers provide additional surface stability eliminates the need for additional protection and additional costs resulting from the scattered grains, and thus a more economical product that has a long service life without them : Has grains. ■ ■ ^:

A further feature of the invention lies in the adaptability of the construction to a zone reinforcement, so that nail zones can be provided which contain additional reinforcing fibers in order to further strengthen the product against nail tearing in the zone of the panels where nails are usually driven in to secure the panels on the surface to be protected? The shredded strands and bundles of glass fibers under the nail heads ensure that the product is securely anchored against the surface to be protected, and there is an extremely low probability of leaving the nail zone due to the extraordinarily high tensile strength * of these glass fibers "- 18 -

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! MSPECTED

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Another feature of the invention is that the relatively high porosity of the reinforcement mats the use of a relatively high viscosity

>. "■ '■■ ■ ■. · pointing, mineral-filled asphalt of higher fire j strength throughout the body of the product. This results in a weather resistance and fire safety of the product that is far in excess of the usual measure, especially in the critical exposed upper and edge areas. The use of asphalt having a higher viscosity also allows greater freedom in the incorporation of flexible features into the object for certain temperature ranges. Furthermore, since the - ^: matrix "of the product consists of 100 percent weatherproof asphalt, it becomes brittle at an early stage

^! 'and thus a loss of strength and also a grinding due to the usually low softening point of the

'usual means of drinking switched off · I

Another feature of the invention is the possibility * in the product in combination with the asphalt

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to provide latent exothermic reaction without the Viscosity increased by increasing the temperature - Must be, that the exothermic reaction is triggered

"will.! This means that the porosity of the fiberglass web the formation of a product with a relatively high

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VlBkoeität exhibiting asphalt is permitted and therefore the The temperature of the asphalt does not / needs to be increased, that the danger of triggering a latent, exothermic! - see reaction occurs.

The invention is described below in connection with the Drawing of the closer described »Ee show:

Fig.l is a partially broken away isometric view

an asphalt sheet reinforced with glass fibers according to the invention,
Pig. 2 a partially broken view of the board

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according to Fig. 1 on a larger scale than this, ? ig.3 a bar position of a mat or a lane Glass fibers, as they are in the construction according to Fig.!

is built in, whereby three different zones with three arrangements of glass fibers can be seen, how they are used in such a mat

can,
Fig. 4 is a partially broken away perspective side view of a device for producing a

According to Fig. 3 »
Fig. 5 is a schematic isometric view of a

Device for the production of the product according to serial ₄ - 20 -

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3? Ig.6 a partial view of the device according to line 6-6 according to Fig.5 »and on a larger scale than these,

3? Ig.7 a skeletal view of the arrangement of glass fibers in a roof _{panel f} as was produced according to the method and the device according to FIGS.

The panel 10 shown in Fig.l and 2 has a weather-resistant asphalt material 12, which by a. Stabilizer, such as black slate, has been stabilized to improve the weather resistance and dimensional stability in the event of weather erosion. It has been found that "the asphalt, if it is of the right kind, Wesent lent to Peuersicherheit of the product contributes ₀ In this regard, an asphalt used geraäss of the invention, which has been produced by a catalytic process and contains a residual catalyst, The catalyst is added during the manufacturing process to reduce the rate of oxidation of the asphalt and thus its blowing period. However, due to the high viscosity of asphalt, the catalytic reaction is generally incomplete · The presence of such asphalt in the product increases the fire safety « ■ 909 813/1017 - 21 -" _BAD

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This is called the same insofar as when ύοώ warming ilaüimen occur, gasification and encrustation of the asphalt surface is increased by triggering the "sleeping" catalyst.

7, in terms of IPeuersioher is very cheap and successful · » Rich asphalt is one that undergoes a catalytic reaction with a chloride catalyst such as ferric chloride. Phosphorus pentoxide is another Example of an asphalt analyzer that yields an asphalt particularly useful for the product of the invention is cheap.

The presence of such a technical asphalt in the final product is believed to cause foaming on the surface of the product upon contact with flaaimen. if the catalyzed asphalt dui-oh ^ lammen, with a temperature of 475 ° '?. and when it comes into contact, there is a violent reaction which stops the spread of these flames. Usually, it is believed that such an asphalt is undesirable in panels of conventional construction, because its 3eroi from \ ent lent high viscosity at temperatures below the dio reaction triggering temperature, for example 425 ° 5. ¹ unites cheap processing

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prevented. With the present arrangement, however, as a result of the porosity of the Grlaefa- = ser base material uses vverdsn, which has a dureh & rin- - · thanks to the higher viscosity asphalt permitted at a lower temperature than the trigger temperature, which is usually exceeded in order to achieve penetration in other base materials such as ragsfils would.

The sheets or mats 11 and 13 made of glass fibers are arranged parallel and transversely to the thickness at a distance corresponding to the desired stiffness of the product. As shown here, the sheets are in the depths of the top and bottom surfaces of the product, forming a sandwich construction, so to speak, but where the asphalt 12 encompasses the two sheets of construction and grains 14 of glazed ground stone or other suitable mineral material in the Asphalt over the top layer or the grass barrel: can be used.

If the dimension of the gesaraten product, the product is relatively small so thin so it is desirable, 11 and 13 -When the Glaofaserbahnen as far as possible apart from each other are so to the respective components, a maximum rigidity and stability 909813/1017 -23-

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achieve. The standard asphalt can be a dimensional stability and stiffness miss, as is desired in plates • which are exposed to the constant force of gleichraäsöigen Winfen or the changing effect of Windstb'ssen _e by arranging in this manner, the webs in the product gives the The uppermost lane immediately below the exposed surface of the product is a more stable asphalt surface in which the grains 14 are securely held, so that the property of holding these grains in different weather conditions is now improved and also a longer service life

des. surface asphalt is guaranteed against damage from sun rays and water. The top fiberglass mat 11 also acts somewhat in the sense of a bracket to the asphalt underneath and thus in in a certain sense as a fire barrier in individual cases, in to which the product is exposed to high temperatures, as in the case of one in the vicinity of the to protective surface of the occurring fire. In this way, the uppermost glass fiber web 11 waves next to it

even

Effect as a stabilizer / as a carrier for the grains 14

and protects

* in an advantageous way / against the asphalt on the surface Movement under dangerous conditions, such as those in

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custom can occur. Furthermore, since the asphalt 12 is made of weatherproof material and extends over the entire thickness of the SrsseugniSßeB extends, ao becomes the life span significantly increased compared to erosion.

The lowermost glass fiber mat or web 15 cooperates with the uppermost hat 11 in such a way that the product is given a resistance to being torn open by nails which are used to attach the product to the surface to be protected. The presence of two GI asfas succumbed to the construction, the individual layers of glass fibers having high compressive strength beneath the nail heads themselves ₉ results in resistance to the product being pulled out over the nail heads, so that the possibility of these constructions tearing off the safety nails as a result of Wind and other usual forces are reduced. The lowermost panel additionally increases the rigidity of the construction, as mentioned above, and in this regard, particularly in a thin panel construction, the arrangement is preferably such that the panel 13 is as close to the lower surface as possible, as much as possible To achieve distance from the web 11. This increased stiffness offers resistance to back and forth

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Fluttering in the wind »The bottom panel 13 results in -far an additional puncture with regard to the hearing position » proceed as discussed further below

3 shows the manner of a mat as it can be embedded in the construction according to ffig.l, Me ß-l ^ ^r,: r;:. Aermatte 11 (was rlaafasern in three different configurations, namely glass fibers in porin of strands, which extend in a relatively straight parallel manner along the length of the mat and furthermore unraged: distributed continuous strands of a multitude of continuous Olasfaaern, which extend over the main dimension of the product , furthermore, additionally interrupted individual glass fibers are arbitrarily also over the whole main direction of the distributed Erzeugniases "2v; .r achieve a tensile strength" at Daohkonatruktionen in which the mat is used, the continuous strands of glass fibers are particularly desirable, regardless of whether they are arbitrary or parallel to each other in the mat are arranged in both cases. the strands are either twisted or untwisted, but form a bundle of continuous, parallel strands eten glass fibers with a · which "run over the full lye of the strand, Bo lies sweeping that individual glass fibers tensile strengths 909813/1017 -26 * -

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up to 1,000,000 pounds per square, based on laboratory tests have and commercially available with Psstigkei * ten of the order of magnitude of 300,000 x 400,000 englo Pounds per square should be available. * Bundles of these individual glass fibers in the form of strands, as aie in the mat self-arranged 3ind, result in exne high amplification of the Embedding8iaateriala in which they are embedded.

Part A of Pig. 3 shows the appearance of a mat, the parallel and arbitrarily distributed, continuous Has glass fiber strands and ferne.v discontinuous glass fibers which are used to produce an object according to Fig. 1 be used. Regardless of the PorE in which this Mineral fibers are arranged in the asphalt, they work both as a filler material and as a reinforcing stabilizer against thermal and mechanical forces to which the asphalt is subjected. Section B of the Pig »2 sseigt A combination of continuous glass fibers in shape

ί ·

of gitrUkseß and discontinuous glass fibers, whereby

° the parallel strands are omitted «the file C

_ »Shows another type of mat that Kit Follow

■. "- can be spent and in which both the disltontinuier- ° loan as well as the parallel strand fibers are omitted All three sections geraäss Mg.3 provide Mattenartea _f represents in a roof construction according to the invention

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can be used, but, as will be explained in more detail below in connection with the method, specifically the method according to the invention, the mat according to Teilet lick A with all three Paser.formen is preferred. In the section 0 of FIG . 3, however, there are shown mats according to the invention, and the elements that perform the basic function are shown

Pig.4 shows a method and a device »with their Help the assembled mat with the individual faeer elements according to Pig * 3 »section A, generated; can be. With this arrangement, a feeder 30 becomes a source made of molten glass, for example the forehearth of a melting tank, and glass streams now let out from the nozzles 31 of the feeder, whereupon eddy forces of a group of fans "32" act on opposite ones Sides of these currents act so as to tear the currents into discontinuous fibers 22. The. · Discontinuous Pasern 22 move under the influence of gravity in addition to those exerted by the air flow Forces in a zone of lower pressure on one below lying foraminous conveyor 59 »on the the pasers stay where they are. The fibers are down moving to the conveyor within a hood 35:;, which the zone

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surrounds below the fan 32. "

The seam below the blower 32 is marked by a '.crenn * wall 33 divided into two parts, ao that the passers 22 in sv? ei itself moving groups of fibers are divided, aöailicli a front and a rear group, which are used in the following Deposit on the conveyor 39 the upper and lower parts of the finished Matteneraeugniesea.

The partition 33 has a narrow elongated side-like design, with a spike at the upper part of the hood In the dungeon zone »The partition results in a space above the conveyor from which the continuous glass fiber stems are deposited on the conveyor between the upper and lower layers of discontinuous glass fibers The arbitrarily distributed, continuous oil fiber strands 20 are blown into the partition wall space by bundles (not shown) which are arranged on a delivery mechanism and which are arranged outside the hood and which are now

ο arbitrary, about the underlying location of discontinuous Fibers 22 are distributed, whereupon the mass is forwarded through conveyor 39 to receive the top layer of mixed discontinuous fibers is moved at the front part of the separation zone. In the one below, Hardly within of the separator, the parallel severity 21 also become

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for depositing on the conveyor 30? Pipes 36 £ uge ± 'leads ₉ from the unillustrated, continuous BJrätcgs having coils of a delivery mechanism, which is arranged laterally on the outside of the hood 35: la ^ "D;.■.;;) © strands are at the beginning or the same: see below änfans in de .; » 'Mi'rcsrc.nri ^ Pro dux'ch blowing in against the conveyor 39 introduced-ty "' Before the blowing process stopped and sine iortgsüots>; c movement as a result of the frictional attachment of the beaches ate fi'aa« i moving conveyor to get right- which withdraws the strands through the tubes 36 from their supply jellyfish, which is arranged next to the hood, but not shown here: With this, the parallel strands 21 are deposited on the conveyor as a result of the movement of the conveyor, vrahrand. the randomly distributed strands 20 inflated at a linear velocity greater than that of the conveyor 39.

In order to ensure that the strands 21 are deposited in the correct manner on the conveyor 39 without confusion during the transition from their source of supply to the conveyor , the arrangement is made that they are guided by juxtaposed and aligned tubes 36 which are arranged in a separate zone 34 at the rear of the separator 33. The randomly distributed strands 22 '

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On the other hand -yon fortuitous be auBgeBtossen 38 beivirkeru their distribution in random arrangement within the larger space dea separator 33 A wide distribution of randomly distributed rigor 22 · is effected "DAAs the discharge ends of the tubes 38 iii some distance above dea conveyor sinft For example, they may be on the order of 9-12 inches above the conveyor , while the parallel strands 21, which are desirably deposited in a more precise spatial relationship, are fed to the open ends of the tubes 36 which are approximately 1 / 8ths of an inch above the conveyor 39 are «

The whole fiber size is made of a binder with a next to the hood 35 arranged, not shown source is charged and is then fed by a likewise not shown Hardening oven sent through to a drying and / desolation Hardening of the binder to fully integrate the fibers to effect a mat. The binder can be any suitable material, preferably a thermosetting material, that has pass-hold properties in temperature ranges above those that the final product of all Likely to be subjected to in use. In this regard, phenolic binders that have $ 12-25 of

- 31 -

9098 13/1017 BADORLGiNAL

A 33 560 fe

.h - ta

April 27, 1964 - 31 -

Mats have proven themselves “at a hardening temperature in the range of 300 - 400 ° F. maintain. The integral relationship of the fibers as retaining member in the asphalt or other Bitunranmaterialien is therefore according to the invention in high MaBe effective for practically all the temperatures _t which the product may be subjected in normal uses. The modulus of elasticity of the glass fibers' 1st in Gröaaenordnung of 10 * 12 million, making it rrade effective in high ■ to the overall stability to increase the ι Bi'fcumenkonstruktion, the ale a modulus of elasticity considerably smaller value the glass fibers has ". ■ {■

Beeflpidaweiee mats according to the invention, which have already been used with success, have been produced with a thickness of about 10 mill. Long from about 3 inches to .au. ligne "Pua had, while the continuous or continuous fibers ¹ borrowed in bundles or strands similar B ¹ Orm approximately" are positioned in a "cniineMßn diameter .. yon 30hunderttausendstel inches) 0 weight percent of the mat. A commercially available strand that can be used for this purpose

909813/1017. . ₅₂ .

A 33 560 fa
h - ta

April 2, 1964 -32-

Contains 204 twisted threads with a twist of approximately one turn per nominal. The strands can, however, be either twisted or untwisted, and in any case a separation between the threads within the bundle can be provided to achieve a finer structure of the mat and a bonding cohesion, whereby a bridging of the laser gaps results across . the expansion of the mats could be present. In this context, it should be noted that both strands such as those described in US Pat. No. 2,736,676 and those described in FSA Pat. No. 2,875,503 can be used in the mat. Furthermore, the mat can be made entirely of such fiber-dispersed austerities without the need to use discontinuous fibers. As far as the term "strand" is concerned, it should be noted that the construction according to the invention is not limited to untwisted grouping of continuous glass fibers,

but there can also be twisted groupings of these fibers and twisted and layered groups or yarns are also used. So the term "strand" is like that to understand that he has any such form of fiber optic groupings includes,

Fig. 5 shows the device and the method by means of which 9 0 9 8 13/1017 - 55 -

^ iriAL

A 35,560 h ' .

h - ta

April 27, 1964 - 33 -

a roofing material according to the invention can be produced. Although in connection with the figure, the generation of Boards described iat, the method and the device can easily be used to produce wall coverings or BaöhXOllenramaterial are used, and »was inclusive Asphalf or other suitable thermoplastic, weather-resistant materials.

A flexible glass fiber mat 43 is taken from a supply roll according to the Jig, 3 and manufactured according to the procedure and the device according to Pig.4 by a pair of feed rollers 50 is deducted and then through a pair of bombardment » tion pressure rollers 51 and 52 passed through, the'-an asphalt layer Apply to completely impregnate the full thickness of the mat. The roller 52 has such a measurement that it is immersed in a supply of molten asphalt, which is at a predetermined height in a reservoir 53 is arranged, which is located below the mat, such that the role a certain amount of asphalt for Applying to the underside of the mat 43 picks up. A rush of the asphalt passes through the porous mat and a small cylindrical amount forms on the underside of the Mat at the engagement between the rollers 51 and 52, while due to the ability of the asphalt to move through the porous

909813/1017 "

-A 33 560 h

h »" te

April 27, 1964 - 34 -

To move the mat through, a somewhat smaller sage also forms on the upper side of the mat at the single handle between the rollers 51 and 52, whereupon a continuous * movement of the mat between the hollows, a 2iisamaiendrücke and a dosage of the on the mat applied amount results. Although the Ve. in the early stages of the process can be referred to as covering the mat! raun, the asphalt is impregnated from the underside of the mat all the way through to the upper side. If this is desired and necessary, _{s to} improve even distribution on the underside of the mat, as determined by the flow and penetration properties of the asphalt used. To prevent now that übergroase quantities of asphalt on the underside äev mat to be applied, a doctor blade 54 ^ esehea gate which extends transversely across the width of dex ⁵ underside of the mat nacli the Zusamme ndrückea j coating and impregnating öurcli. the lumps 51 and 52 extends. The doctor blade 54 removes excess asphalt from the underside of the mat and doses the amount fed to the underside to the desired level. In most cases it is desirable. J the mat with a minimum of Äsr> stop at the üntoroeito su

909813/1017 "

- "'* ■ 35 -

BATH ORIGINAL

A 33 560 h

h - · ta. ·

April 27, 1964 ~ 35 -

provided, jedaci. with a sufficient amount to adequately cover the glass fibers, since the catalytic reaction of the asphalt 'af.i temperatures of i; .25 ° S *. & 2iü Kieln * can be triggered, the asphalt is kept in (Hn storage tank ^ at 3? Temperatures -of e; wa 350 ° F .; during the ice action for longer periods of time:? Remains out. Bsr asphalt, when $ ε then from the storage tank at a temperature etwi wn 400 ° F is ready for use, removed and augefühct the Aufbri-igreservoir 53rd the asphalt ^ i rd in dieaem Rf ^ ervoir 53 melted voö fliesig at a Senipe The temperature VCJ is kept in the order of magnitude of \ BQ ° F, and with this temperature the asphalt on the thicker side of the mat becomes 43

At,". Moving the coated and waterproofed cases forward. . jji ^J 'te Beyond this coating zone iaf; ea mm erwünaoht if.ßs the mat is cooled "6-enäss the Erlindung \ * now ill the lower Veretärkungsmatte extent abt'ekUh'li not daas a molten subsequently deposited Aiplialt out through the mat by melting the Übei- * coll" γλΙ ImprägiiiG »rungsiaaterials flows through before the complete Zussittegabau the product lake. This cooling is brought about by the fact that the impregnated mat is finished; of?

kung einer Kühlraittela, example «white water r, m 909813/1017

A 33 560 ta -

h - ta

April 27, 1964 - 36 -

is that by a pump via a spray device in the Distance above and across the width of the mat is performed, with a coolant oil mist from this spray device distributed in the zone immediately after the coating process will. The mat is then passed through by air passing between a pair of liuftkiihlhauben 57 circulated, cooled and determined in their shape .. These Kühihauben are above and located below the mat in the zone immediately following the spray cooling zone and prior to the asphalt coring step is located. The one provided by the cooling agent - 56 outgoing mist causes an initial cooling, while the air cooling hoods, "which are on a larger one Extend the length of the path of the mat, a more penetrating one and gradual cooling through the above and below the mat cause circulating air

When the cooled mat is moved forward nicely, melted asphalt 42 is additionally stored by a bosom "▼ orraf * fcf" which is above the mat - in which the asphalt corresponds to the asphalt iia HeaerVoir 53 and d "Ä, nooh later applied Asphalt is located and this asphalt is on an $ emperttur iron der Orösaenordnun «of 580 ^ f gitiilten · Before the AepHalt on the ^ iöhtoMefe mat» ufgtbraaht mtsii ^ t ** $ * \ A * & ® & L 8tr # ifen of

Ά 33 560 h

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April 27, 1964 - 37 -

small, chopped off or shredded strands of fiberglass deposited on the coated mat in areas 45a, 45b and 45c (see inabea.Fig.6) where the longitudinal magelaons are calibrated of the final panels are located, these lagelsonen are on the order of 2-3 inches wide and im general in the cows of the middle of the table width and surrender a reinforcement for the asphalt in these zones so that there is no hail retention there.

In addition, there are chopped strands on the areas 46a and 46b of the coated mat correspond to the exposed ones Main edges of the panel applied »as in the following from which Matt «Γ is cut off. The crushed ones Fibers at the product edges increase the fire safety of the 3-panels due to their blocking tendencies in relation to the flow of asphalt, if the product is under the influence of expanding flames "

The chopped up fiber strips are made from continuous 60-ended glass fiber slivers 47, which are drawn off from coils via guide eyes 49 and are chopped up by conventional "rotatable chopper 58a" b _# q "d and e immediately above the coated mat in the zones in which the strips are 45a, 46a, 45b, 46b and 45o are located.

'■ -; ..> bad

t ■. r ■ ■ - ■■■■■ ·

A 33 560 h

It- ta

April 27, 1964 - 38 -

You can individual fuses for example of 60 consecutive fflasfasereträngen each 204 continuous glass filament made · If the fuse in a relatively short lengths, such as 1-3 inches »eerachnitten" is, it fills the mat generally with arbitrariness! Loh distributed, chopped Stranglüngen "the Mix öicb to a Hetzweajkmaese.

On the coated mat and over the strips of zer ~. Chopped strands of glass are then added to the asphalt in a liquid state at a sufficient distance above the mat so that it extends over the entire width of the mat and envelops the chopped strands of fiber, so that it forms a core for the product moving forward. A second mat made of glass fibers 41 is pulled down from a supply roll by a pair of pressure rollers 61 and is applied directly over the newly distributed asphalt core by passing directly to the uppermost pressure roller 61.The pressure rollers 61 are at a distance corresponding to the desired thickness of the asphalt core arranged and in a position in relation to the asphalt supply 62 in such a way that they press together with the natural spread of asphalt excess amounts to the edges of the aggregated erous lake. Dae from the edge? squeezed, übarachüesige material flows into an overflow

TOl? / ~

A 33 560 a -

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April 27, 1964 - 39 -

container 65, which is aloh below the pressure roller ^ 61 «The coated mat 43, which stands in a relative cool, solidified state can then be dem Weight of further supplied molten core asphalt 42 resist and form a base by their mäsae and the level of cooling is such that it is not heated up by the added molten asphalt, that the core material can flow in hindu

The parallel existing in the hats of the invention Severe increases the tensile strength of the panel during manufacture; assessment process, in which each one of its own mat as a train * i element acts, the goal of the railway through the establishment Allowed · The parallel strands also act somewhat in the manner of a base for bridging the asphalt across the width of the web during assembly. . -This means that the spaces between the parallel arranged strings of tension are so small that the The bitumen that has been deposited on it is arranged like a bridge over the gaps · BIe mixed discontinuous fibers • also loaded like a bridge across the spaces between 4 · η arranged parallel strands and further transverse to the

* · · ■ ■

wlllkUrlloh distributed strands feet and integral connected,

die sloh in Ziokesaokart over the elongated, parallel ' , · 909 813/1017 "

U69556

A 33 560 fa

Ii - ta

27 »April 1964 - 40 -

Stretch strands. In this way there are gaps and “void” of the fibers in the mats to a minimum diminished, ti whether ei siote 3, however, results in a Boroeüat that a relatively free passage of the liquid bitumen allowed

The glass fiber mat 41 has the oeiia passage under the most frequent pressure roller 61 and in its pressure effect against the core material on the lower layer the effect that a quantity of Keraaspnalt is pressed in such a way that when the product moves forward from the point between the pressure rollers 61 a thin layer of asphalt is formed About the fibers of the mat 41 is · Then, a top asphalt layer on the top Eatte.abgelagert _r by a stock 63 above dee product ·> similar to the Torrat ▼ on Kornaaphalt 62, is supplied. The material thus produced is spread over the entire width of the product and then passed between a pair of ironing rolls, which are arranged above and below the product at a distance just sufficient to achieve the desired thickness of the web. Excess vein · »4 * r top asphalt layer are pushed out to the edges of Breeognieaes and fall into a container 65, from dea then here again can be put into circulation.

909813/1017 - 41 -

BATH ORIGINAL

A 33 560 b

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27 »April 1964 - 41 -

A scraper knife 69 is located on the underside of the product and contacts the lower layer of asphalt after passing through the Bosier rollers 6 $ to scrape off any excess amounts of asphalt that may have flowed to the underside. The amount of asphalt present in the product prior to the * storage of additional amounts from stocks 62 or 65 is such that when it cools down, the added amounts in combination with the crushed fibers are not sufficient to conduct heat through the floor mat at such a height That there is an excessive weakening of the lowest asphalt layer, reinforced by the chain 43, so that the asphalt dripping through the asphalt track is essential Bosier rollers 64 to wipe off the pressed out material and to be sure that the bottom mat 6 is arranged as close as possible to the bottom of the "product"

The usual Schutz- und Bekoratiorisminerallkörnsr, such as crushed. Stones can now optionally be aufgebi'acht on ι .. 3-a product on the top layer of asphalt ^ atfcerbeotündigem, n> .. ohdem daa! I '/ ^ auu Nifi by

9 0 9 813/1017 -: '~ «

BATH

A 33 560 h -

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April 27, 1964 - 42 -

the metering rollers 64 has passed through. The grains 44 are supplied from a storage vessel 66 and are dosed on the exposed asphalt surface of the product by a feed roller 67 provided with grooves fed that directly maintain the storage vessel 66 is arranged. For mixed colors, if necessary, an application device can be used in conjunction with multiple pre-; Vessels should be provided at this stage of the procedure. The rotation of the grooved feed roller 67 corresponds to the forward movement of the conveyor »to ensure that an equal supply of grain along its entire length of the product is sold.

The grained construction, made up of asphalt and fiberglass, is then powered under a Irommel 68 passed through and around them, .the a Partial clogging of the grains in the asphalt of the free surface on which they were deposited., while over-

Coarse grains, which are not adhesively attached as a result, fall into the storage vessel 66 because the path is now reversed in its sifting after passing over the drum 68. A release agent, such as "31iHuateilc.Ii-an 72, is then deposited on the underside of the web" after passing through froniiael 30, 909813/1017 _A "

A 33 560 b

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April 27, 1964 - 43 -

all of them * will be augefttnrtm a Foarrategeftee 71, that a certain amount of! particles vibrate, inclined flat section 70, öbgleiofc here ale Example mica for the irenna medium is given, so did It does appear that any type of material can be used to achieve the desired, non-existent quality of the final product. Sand is another material related to this Zweok can be used · ·. '

Baobde »was now a SrennsltteX on the back of the tape, vlrd this over a Uakehrtromrael 73 which in a permanent white of the frennmittel an de? On the back side, excessive amounts of the separating

The sound of the turning drum 73 is stripped off by a cross member 74 and deposited again over the vibrating surface member 1. The final product is then passed through two pairs of pressure rollers 76 and 77 which, one after the other, determine the final dimensioning and laying down of the grains in the surface broke 76 led, bevo? qq su turns verfortat ttlrd «around now a gradual cooling

of the band than is usually the case with dor Gesohwindig- • 909813/1017

A 33 560 h - _

fa - ta

April 27, 1964 - April 44

fceit the manufacturing process would be possible "

Saoh the Carry on past the guide roller 78! The tape to a check moving! Roller conveyor is brought _t of a series of parallel, rise slowly "moving feed rollers 80, has the Sioli across the width dee band erstreoken" The one rope of the tape in contact with the second roller 80 of the conveyor is pressed by this external roller and a pair of stationary ₉ spaced-apart baths 79, which slows down the forward movement of the pressed second

ird vina so that a turn is formed between the first and second ought to be oo dee f ^ rderere. A further forward movement of the second roller below the stretcher 79 pushes the newly formed, hanging loop of the belt past the wheels 79 so that it now comes to lie in series with the previous loops on the belt. With regard to the belt, which has been slowed down in its linear advance for the subsequent sons and packaging, there is the possibility of slowly cooling it down to a more stable state for further treatment »

• 45 -

909813/1017

BAD ORiGiNAt

A 53 560 h

* - ta _

April 27, 1964 - 45 -

The forward speed of the Hollen 80 relative to the The speed of advance of the tape during its manufacture determines the length of the turns Θ1 and thus the time allotted for cooling after production *

The relative speeds between the manufacture and the cooling of the belt are regulated eo that it is fully stabilized in the subsequent slitting, sons and packaging. At the end of the Heine von roles 80

the tape is drawn out from the last of this series of turns by a pair of pull rollers 82 and one Pair of flash rollers 83 fed. The speed, with which the tape is tightened by the tension rollers 82, can be regulated so that a short additional Winding 85 in front of the slotted rollers 85 disfigured, which means that there is no longer a precisely adjusted speed ratio. never required between the seat rollers 85 and the pull rollers 82 is. Furthermore, there are also difficulties in tensile stress reduced for cutting the tape

The slotted rollers 83 cause the Eanöeo Xn to run three longitudinal strips of the same width, which remain next to each other and butt against each other, and in this! »Agc they are dug ^ hn ^ iii ^ I '/ aaÄ yoLn Me β» drive roller »8A through- »

A 35 560 Ji

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27.ApPiX 1964 "" - 46 -

sucked and a pair of sons powered rollers Listed, the a son of the Eissseliion, in parallel eioa moving strips of belts smr forming panels the general in? ig.l shown'teniOrm cause

After cutting, the panels are picked up by a pair of clay Yoreohubriemeß 87, which stack the panels on a plate 88 of a packaging bed 90 sum to Zunawaonhinea and final dispatch. "

For example, it should be mentioned that advantageous panels with a thickness of the order of 125 mill. With a distance between the 10 kill slasfiber mats of the order of 75 mill communicated ₉ _ ÄSLBB the distance between the mats is approximately 605 * of the 5! apple thickness and since the distance between the mats is 7.5-1. ffewielitöprozeat <ia · zwieohen lying core has about 50 "Ber in the lower mat vorhandene'SränK'ungsaephal-t included $ 4 and the upper Abdeckasphalt XO ^ ÜBB BiK the surface grains were previously 32 $ imae that release-l _f 5 i? of EraeugniBeweights a. About the area eggs Matt

can strengthen itself from at _{least- »0 f} 005 to 0.05 KoIl- 909813/1017 _._ ₄₇ “

\ J sJ

A 33 560 k -

Ii - ta

April 27, 1964 - 47 -

stretch, and the distances can be between Q, 010 nominal to Oi200 inches. Diameter "discontinuous" fiber can be faaers of 0 _f 0001 to 0.001 inch 4m range between 0.0001 inches and 0.002 Ms 2oll continuous **. The weight of the two mats can be as low as 0.1 pounds per barrel and from 1 * 20 $ * of the raw material Contained similar suitable medium-sized areas of the order of 50 percent by weight of the asphalt.

^ rUf u ag en -of asphalt slabs with or without bodies on the exposed surface, certain conditions of solar radiation show that the asphalt reached a temperature of 125 ° Ϊ ¹ when the grains were wet, but without these grains a ϊεκρβ «temperature from 150 ° 3 ?. assumed · As already assumed above; i igebsn, can

ο the lack of surface grains without further ado ο

Construction according to the invention then also possible 3ein ,, 7 *. if the asphalt takes on higher temperatures as a result _s

-j. because of the exposed surface as a result of glass fiber-o. . ■

- »NetzwKrkee of the upper mat adjacent there <ine ent *

• speaking stability was given ♦

A 33 560 h

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April 27, 1964 «* 48

In the following, reference is made again to the 6 and 7, and in connection with the preceding description of a production line, the fag zone webs 45a, _8, 45b, 45c, which have shredded strands, extend over the entire width of the carrier mat 43 and can have 60-ended slivers chopped into small lengths, such as 2-3 inches, _c These are then randomly deposited on the tape, e.g., approximately 3 inches wide. For example, the amount of chopped strands per 100 square feet of panels can be 0.4 pounds. The nail web 456 is at a distance from the exposed edge

• *

arranged corresponding to the cut! Peilen 151 according to Figure 7 "If the board width is of the order of 12 inches, the liagelzone 45c 6 inches may rearward of the exposed edge of the panel are _e Thus, if 3 sheets from the on Fertigungsßtrasse 5 tape produced are cut according to Fig., the tape would be 36 inches wide and three inches 3 separate tracks can be provided over the entire width.

The two additional webs of chopped strand 46a and 46b bind for the exposed edges of the board cut from the ribbon. Only two eueätssXlehe tracks are required for the triple * tape, as two

909813/1017 ~ * 9 -

A 53 560 ii

h - ta

April 27, 1564 "- 49 -

these strips In the arrangement of flg. 5 with their exposed edges abut one another · In this way, the aas chopped strand existing rail 46b which overlaps the Sehnlttzone to form the anetossenden freilie ·, constricting edges of adjacent strips 6 inches \ wide by two by chopped strands reinforced edge- '. to form edges. The second web 46a need only be as wide as a single web in a single panel, see below, since it forms the basis for a nail zone on the edge of the now remaining single stripa.

As already mentioned above, the chopped strands at the edge of the slab help to reduce the spread of the lavmen or, in other words, they create a tarpaulin barrier by reducing the tendency of the asphalt to flow when the slab heats up. This means that the reaction of the "sleeping ¹¹ catalyst is characterized by the presence of the chopped strands of glass fibers of certain length to the i'afelkanten the extension of the flame in addition su delayed in the asphalt. the! flow of fresh asphalt from the interior of the structure, whereby a permanent burning and the expansion of the flame would be prevented by this * vrit in other words, the chopped strands at the Tafeikanfcc. ΐ-curl the plus deo hot asphalt and hold the Aaph < tvΛ _c

9098-13 / 1017

\ J \ J

A 35 560 a

a - ta

April 27, 1964 - 50 -

so that nan the flames do not spend an hour with new material supplied «earth and spread.

Here is an example of the improved risk of fire in one The experiments show construction according to the invention of the Underwriter Laboratory that the plasma expansion a plate according to the invention with a asphalt and heavy oil asphalt reacted catalytically can be reduced to three sues or less in ten minutes at the free corners, that is, well within the aax «speeds of 6 pus ο in 10 minutes for Bach« · Class A boards «

Although the method and equipment was described in the context of the production of asphalt sheets,. so it follows without further ado »that the erfit auoh aar production of rolled up Daohafcdeokungen is useful · In this Suaamraenhang the unrollable Dacherseugnia will usually have a greater flexibility than panels, since this tape can now be unrolled ain out and calibrated Ofeörfliiehenkotrfcuren, on which it attached "ground Ssoll _f aßpaasen must" Ba is therefore moäifeiert the stiffness of the product corresponding to "If, as indicated above bereita" ETR distance of the mat transversely to the Mako as **

SO 9 8 1 3/1 O 1 7 ~ ^'51 "

A 35 560 b

h "- ta

May 27, 1964 - 51 -

Brseugnleses is reduced, ao results in a large © • Flexibility and a lower stiffness, but can be additional also the type of asphalt used in the product be modified so that »the degree of stiffness gets bigger or smaller. Thus, both the distance the mats as well as the type of asphalt serve to adapt the end product to its use.

i With regard to the penetrability of the coating suitable asphalt tea in the product according to the invention can the asphalt taeija now? due to its weather resistance, Fire safety and rigidity are selected and less according to its compatibility with the too soaking usual mushroom material * The asphalt after the et * inventive construction is usually ffela'e with a well-read slate dust before application and combination mixed, however, is the proportion of slate. ; dust in the asphalt visibility limited to the usual quantities, so that a combination can be found, all Every mixture is more stable and can be selected according to its weather resistance «As a variant The inventive method can be a normal Abdeokaaphalt a catalytic material can be added,

909813/1017 - " ⁵² ** '

A 55 560 h

h - ta

May 27, 1964 - 52 -

U.N'. although at a time when the slate was added w <.rd, so that now a "sleeping" catalytiache Reaction is present «For example — can be a half Percentage by weight of ferric chloride can be added to the asphalt, along with the slate, to make the desired to achieve sleeping reaction characteristics "* n"

The presence of a glass fiber mat in the weather zone of the product means both a reinforcement and a weather barrier to hold back the weather components of the product increases the elastic properties of the weather zone. Since the actinic rays cause the surface asphalt to be made more water-soluble, so that the asphalt can be washed off and washed away by rain, snow, and the like, so the presence of glass in the weather zone gives a stabilty to giants and a corresponding erosion Sterhalb the surface, "rd increases odurch the life, in the use of which is l? ei the construction geiääes of _λ ifflndune the Wetterbeetändigkeit the Asphtlttafeln erhfbliöh irerbesaert because the asphalt in hochqualifieieipte

909813/1017! - 53 -

A 35 560 b

b - ta

May 27, 1964 - 53 -

is now able to be arranged throughout the body and because the stabilization of the outer surface is increased by the setswerk of the glass fibers immediately next to it. In addition, the vegetable product of the finding tightly and firmly attached to the surface in question, which it is supposed to protect «because the increased strength of the hail zone is present, through the additional high-strength reinforcing and chopped egg fiber strands.

The fire-like character of the product is also a result of this increased because a catalytically reacted asphalt is used, which is additionally activated by the dormant catalytic reaction when exposed to high fluff temperatures. The dormant catalytic reaction is in such a sense a latent ezothermal reaction, caused by temperatures of. for example only 475 ° F is triggered, which then creates a violent reaction that in a blow-out effect and thus in compliance with the flame

Senau spreading results · Bite activated by the flames; dormant reaction can, as is believed, the flame thereby blowing out, dees gassing, skin formation and • is reinforced in charring the surface of the asphalt, j ha βο volatile parts of the bed end included and further 90911 ^ / 1017 .54-

A 33 56OV

h - ta

May 27th 19 * 4 - 54 -

This increases the viscosity of the material increased to solidification.

In addition, im high delay corresponding to that Presence of the catalytic; Asphalt results in a additional delay in flame propagation and a Reducing the tendency to promote combustion through the presence of the glass fibers in the chopped (Jlas Faaerstrangbahnen at the free edge of the ¥ afel _t which hinders a plessea of the asphalt and thus an increased viscosity of the asphalt at the edge is imitated.

Although the product according to the invention was described using two glass fiber mats 1 ½ distance from each other, it shows without further ado that the mainly improved characteristics of the construction result from the presence of the top glass fiber mat, while the bottom glass fiber mat has rigidity or ratability adds all product and results in a stronger lagolhalterung "She lowest mat can mX% of a" röseertn be ausfenählt fltxibilität and can "INIF" n fälltn also "will change to" lat # rial auaotr

908-813 / 10.17

■ K-

ι ^:

fibers JwMb ffc this Hinaioht can be the lowest layer speciill als Frühigel · ^ Ur the Korabination of the deposited and separated materials serve above and with it in their construction and in the material of the upper one Matte yeraohieiegen || lti. fei & ugetffeiee is also the uptirst ^ mat is made of a material with an inert Ohar | ici # i # $ «at * jiteli3 $ eie.e Slasfaeern, around the!. Level-

^ ltttten from ^ ganieohem limaterial, absorb moisture, which the life time of the irBeugnissee and dätiiit then EraeugniB al a 'K'. ' make a sense of the word less effective.

f;

Ϊ-4

109813/1017

u 56 -

Claims (1)

< ^: A 33 5.60 h h - te. J "May 27 , 196" -. 56 - . * WetierwicleretanaBfiihxges, plafceii «c / lar ribbon-like r-eufsiiis iür})? - i; haMeolvog3n," WacaabcleclEiir ^ Hn or .'jteiL ^; r; 'i, eiohöa with -n-miä öurob j? Aaß; ^s a " , atärfcteji .- :. f? pf; a *. '. t.lEö: i.'peir, da ^ iircfc yu ";:" ! from (rXasri ^ tfA'ii. n «^ in Ροϊ'Πι} Einä>'>f-; t.« ins one Ua ^ h in aurob clic. ;; yu «es; '^ v - ;; ev (Uiiwii-v-iil) ß ^ stretch« ί'ίλί: mat elal- Ubov the whole "egg jPIüüL i ^·:;? r" i h 3 «Ap fcenaseioh «^ ·: ^ that 41e a h ^ vi, « ie beiüen next ■ ei> je *. Otoerfleehe Sfi ^ eord.afi '*; nlp.d « götiöKii ^ ei ^ biiel ;, äa ^ s <iie ^. 'fieii ·? αβϊ 'mats he; öurcfa ext? heat-hardness Kde "kur. ^ tetoii ·· or has" artissea binding agent su a firm cfanasen var ·· unites ciis; ^ ". . - ... , "■"' i ^i: "■ '' 909813/1017 A 35 560 II fa - ta May 27, 1964 - 57 - 5ο Aephalterzeugnls according to one of the preceding claims, characterized in that the mats are formed from randomly distributed fiber strands. 6. Asphalt product according to one of the preceding claims, characterized in that the mineral fibers are arranged irregularly in the mat, 7. Asphaltzeugniö according to claim 5 or 6, characterized in that that the strands consist of continuous fibers, in which randomly distributed, discontinuous individual fibers are mixed " β, Asphalt2eugnis according to one of the preceding claims » characterized in that a layer of grains of mineral material is applied to the surface iat, 9. Asphalt product according to one of the preceding "ι Anopi'üche" characterized by daaa in certain // OiieiJ or Areas of fiber concentrations formed ain-L 10., \ aphalterzeugnie according to claim 9, thereby gakom daaa the concentrations by chopped up walls ^{uind #} 909813/1017 - 'jö - A 33 560 h h - ta April 1964. ~ 58 11. Asphalt product according to any of claims 9 or 1O _9, characterized in that the concentrations are formed from pairs of strands or bundles, "which contain pre-jugly chopped fibers, 12. AsphaltzeugrrLs naoh one of claims 9 Ma IL _- -. characterized in that at the edge of a xan>: egg: area mineral lasers are arranged in an irregular arrangement, but in a higher concentration than the ubrxgnn JTasei'ti, 13. Aephalterzeugnis according to claim 9 or 12, characterized in that at least one concentration con « between these mats directly along a ridge is arranged » 14 «Asphalt product nr.ch a; n advised» claims 10 - ';·.;> _T marked _{9 in the} fixed consolidation _s Ix-rlspielsweiee the chopped up paeorn gübil (5th strings _s ιinmldrreiber i'o the edge forming a flame cling and arranged forwardly between the mats «.int- BATH ORIGINAL 909813/1017 1469558 A 51 560 II 21, April 1964. - 59 - IS «Aap holder product according to one of claims 9-14» characterized in that a 'longitudinally arranged, Reinforced hailstone at the places provided let at which nailing occurs * 16 «AephaXterzeugnle after address 15 * thereby kemisselehnet, that the Ragelssone has an irregular arrangement a mineral fiber concentration to such an extent on ^ veiat that in this zone there is a considerable contra » stood against the pulling out of hail. 17 «Aephalterzeugnia according to one of the preceding claims, . characterized in that the at least partially . wetterbeafendiße asphalt catalytically treated and in a state in which a remainder of the catalytic Reaction dormant 18. Aephalterzeugnie according to claim 16, characterized marked. ; net that the catalytic reaction is such »that it remains dormant at normal temperatures, but at Flame temperature is triggered «, - 60 909813/1017 A 33 560 h h - ta April 27, 1964 - 60 19 * asphalt product according to one of claims 17 ot. * R characterized in that the asphalt by e. Chloride catalyst treated is ₀ 20. Asphalt product according to claim 19 _? characterized in that the catalyst is ferric chloride «, 21. Aephalterzeugnis according to claim 19, characterized in that that the catalyst is phosphorus pentoxide * 22. · .Process for manufacturing a product according to one of the preceding claims, characterized in that a continuously moving porous fiber mat is coated with a hot asphalt and impregnated that the mat in an essentially porous and solid state is moved and artificially cooled. 23. The method according to claim 22, characterized in that there are still in the soft state Asphalt core material another mat is placed on top * 24. The method according to claim 23 »characterized in ₉ that the second mat is pressed into the asphalt and / or with "'asphalt is poured, - 61 - 909813/1017 A 33 560 h h ~ ta April 27, 1964 - 61 - 25. The method according to any one of claims 22-24 »thereby characterized by a concentration of mineral of see fibers, for example, in a minimum / a strip or a bundle in at least one later edge zone and that a layer of hot asphalt material for forming on the cooled mat. dung an asphalt body is applied in such an amount and at such a temperature _# that this hot material is not hlndurchfliessto by the cooled mat 26. The method naoh one of claims 22 to 25, characterized characterized in that a weather-resistant asphalt is heated to an impregnation temperature and this heated asphalt is a catalyst in one such an amount is added that oxidation occurs at a temperature above the impregnation temperature this asphalt takes place 909813/1017