EP2230360A1 - Feuerschutzwulst - Google Patents

Feuerschutzwulst Download PDF

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Publication number
EP2230360A1
EP2230360A1 EP10156940A EP10156940A EP2230360A1 EP 2230360 A1 EP2230360 A1 EP 2230360A1 EP 10156940 A EP10156940 A EP 10156940A EP 10156940 A EP10156940 A EP 10156940A EP 2230360 A1 EP2230360 A1 EP 2230360A1
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EP
European Patent Office
Prior art keywords
fibers
bead
weight
fire
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10156940A
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English (en)
French (fr)
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EP2230360B1 (de
Inventor
Xavier Decant
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Ferlam Technologies
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Ferlam Technologies
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Publication date
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/948—Fire-proof sealings or joints
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4242—Carbon fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D04H1/4342—Aromatic polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0243—Fabric incorporating additional compounds enhancing functional properties

Definitions

  • the present invention relates to the technical field of firestop beads for the manufacture of firestop seals, more particularly firestop pads consisting of a core comprising rock fibers and an outer casing.
  • a fire seal is made with a mineral fiber bead as bottom seal and fireproof sealant or a metal seal cover.
  • the mineral fiber most often used, given its performance as a thermal insulator, its fire resistance and its price is rock fiber. It is used to control the spread of flame and gases.
  • Rock fiber is an artificial mineral fiber, naturally incombustible, since there is no chemical agent added to retard its combustion.
  • Rock fiber begins to deteriorate from 1093 ° C.
  • the rock fibers are very short, of the order of a few millimeters.
  • Firestop beads consisting of a core exclusively made of rock fibers and an outer shell are known.
  • the fibers or rockwool are fed in the form of wool or wad in a collection cone feeding a braider.
  • the outer jacket resistant to high temperatures, is braided and thus covers a flange formed of rock fibers having a section and a linear mass very irregular.
  • the bead obtained logically presents these defects.
  • the core being irregular, because made from unbound loose rock fibers, the braided outer shell must ensure itself cohesion and maintenance of the elongated shape of the bead. It thus represents a significant relative weight in the total weight of the bead while the core provides most of the desired fire function.
  • said outer casing can not prevent the release of dust from rock fibers in the core, the latter being only agglomerated in bulk during the process of sheathing.
  • the cover of the core by the outer casing is reinforced by varying the titration of the braided yarns but especially by choosing a lower braiding step, which results in a direct decrease in braiding speed. at the expense of productivity and a parallel increase in the amount of said envelope.
  • the subject of the present invention is, according to a first aspect, a fire-resistant bead consisting of a core comprising rock fibers and a high-temperature resistant outer shell that overcomes the aforementioned problems in that the core further comprises , in intimate mixture with the rock fibers and in a minor proportion, high temperature resistant crimped fibers having a length greater than or equal to 40 mm.
  • Said rock fibers and support fibers are in the form of one or more carded ribbons arranged parallel to each other in the longitudinal direction of said bead.
  • high temperature resistant support fibers means fibers which are nonflammable and / or which decompose under the effect of heat and are capable of withstanding temperatures of at least about 250.degree. C., preferably greater than 350.degree. ° C.
  • Rock fibers can not be carded alone because they are much too short. It is the merit of the plaintiff to have imagined and verified that it is possible to card rock fibers by mixing them with a certain amount of crimped fiber fibers of at least 40 mm. Thus, thanks to the presence of these crimped support fibers, the rock fibers can be conveyed, carded and recovered in the form of a cardboard tape, of regular appearance and linear density.
  • the minimum length of 40 mm of the support fibers is not sufficient to card mixed rock fibers.
  • the support fibers must also have a crimp to drive the rock fibers, the latter having indeed a length of only a few millimeters. When the support fibers have a length of less than 40 mm and they are not crimped, the rock fibers are insufficiently maintained and driven during carding, so that the losses in rock fibers, unrecoverable because in the form of dust, are very important.
  • the support fibers have a length of between 40 mm and 120 mm.
  • the rock fibers selected for the manufacture of the beads are preferably selected so as to have a low biopersistence, such as the rock fibers sold under the trade name Lapinus® by Rock Wool.
  • the outer envelope has the function of holding together the carded ribbons and to give the bead a substantially regular circular section.
  • the present invention makes it possible to strengthen and improve the cohesion of the core, it consequently makes it possible to reduce the linear mass of the outer envelope.
  • the core having a regular linear mass facilitates the operation of laying the outer casing and allows obtaining a bead having a shape and a linear mass also regular.
  • the bead according to the invention is in the form of a bead which is characterized by a significantly improved cohesion as well as an excellent resilience allowing it to maintain its elongated shape despite the deformations suffered during its implementation. It also has a very good flexibility, which facilitates handling and installation.
  • the firestop bead according to the invention can be used alone or with a putty, a mechanical seal cover, a seal to clip or a flexible sealing profile.
  • the bead is particularly used for the treatment of vertical and horizontal joints requiring fire protection, such as floor joints, walls and ceilings, joints between prefabricated facades, joints between floor nosings and prefabricated facades ; it can also be used in firewalls, in ducts and ducts.
  • the firestop seals equipped with the firestop beads according to the invention must satisfy in particular the standard EN 13501-2 classifications EI 120, El 180 or EI 240.
  • the number of carded ribbons arranged in a core is a function of the diameter and the linear density of the target bead.
  • the proportions between rock fibers and crimped fibers resistant to high temperatures are determined according to the desired fire properties - in order to meet the regulatory standards mentioned above - and carding constraints for the realization of card ribbons.
  • the rock fibers represent between 60% and 80% by weight, of the total weight of the bead.
  • the Applicant has determined that whatever the target diameter of the bead and that the latter meets the regulatory standards mentioned above, the proportion by weight of rock fibers relative to the weight of the bead is between 60% and 80%.
  • the weight proportion of rock fibers is about 80% to 90% of the total weight of a card sliver and the proportion by weight of crimped fiber fibers is about 10% to 20% of the total weight of a sliver. cardboard ribbon.
  • the rock fibers represent at least 75% by weight of the total weight of a fire bead having a diameter greater than or equal to 20 mm.
  • the proportion by weight of rock fibers relative to the total weight of a bead according to the invention having a diameter greater than or equal to 20 mm is of the order of 75% to 80%.
  • the proportion by weight of rock fibers is substantially constant regardless of the diameter of the bead provided that the latter has a diameter greater than or equal to 20 mm, which allows to obtain even constant fire resistance properties whatever the diameter of said bead unlike the beads of the state of the art.
  • the rock fibers represent at least 60% by weight of the total weight of a fire bead having a diameter of less than 20 mm.
  • the presentation of the rock fibers in the form of cardboard ribbon makes it possible to produce a bead of small diameter hitherto impossible in the state of the art. Given the small diameter, and the necessary presence of the outer shell although minimized, compared to the current state of the art, the linear density of the core is logically lower compared to the total linear density of the bead .
  • the outer casing is formed, in particular by braiding, of son resistant to high temperatures, in particular glass son.
  • high-temperature-resistant yarns means fibers spun from fibers, non-flammable monofilaments or multifilament yarns and / or which decompose under the effect of heat and are capable of withstanding temperatures of at least about 350.degree. ° C.
  • the outer jacket is applied to the core at a constant tension so that it is properly pressed against the core evenly over the entire length of the bead, which avoids the distended son projecting laterally bead and thus the attachment and fraying of said outer casing. Manipulation of the bead according to the invention is thus facilitated, in particular with regard to multifilament yarns, in particular made of glass.
  • the outer envelope represents from about 7% to 10% by weight of the total weight of a bead having a diameter greater than or equal to 20 mm.
  • the outer casing of the bead obtained according to the invention having a diameter greater than or equal to 20 mm has a greater pitch than those of beads having a diameter of the same order known from the state of the art since it has not need an outer envelope as covering as the envelopes of the state of the art, because of the presentation of the soul in the form of tape (s) card.
  • the braiding speed is thus considerably improved, for example it can be multiplied by two.
  • the step according to the invention is defined as the distance separating two son cracks arranged along a straight line passing through the longitudinal direction of the bead.
  • a firestop bead of the state of the art having a diameter of the order of 20 mm comprises an outer envelope representing by weight about 40% of the total weight of said bead against about 8.5% for a bead obtained according to the invention.
  • the outer casing is not feasible based on rock fibers but necessarily on high temperature resistant yarns which are more expensive than rock fibers, the beads according to the invention represent a significant gain.
  • the outer envelope represents of the order of 10% to 25% by weight of the total weight of a bead having a diameter of less than 20 mm.
  • the linear density of the core is also low so that the proportion by weight of the outer envelope relative to the weight of the bead is logically greater.
  • the presentation of the rock fibers in the form of card ribbons makes it possible to produce a small diameter firestop bead, and to optimize the proportion by weight of the outer casing with respect to the weight of the bead and, correlatively, the cost of manufacture. said bead.
  • the high temperature-resistant crimped support fibers are chosen alone or as a mixture from the following fibers: meta-aramid fibers, para-aramid fibers, or para-aramid and meta-aramid copolymers, glass, preferably type E, phenolic fibers such as those marketed under the trademark Kynol®, carbon fibers.
  • the bead comprises in its core one or more high temperature resistant wires arranged parallel to the longitudinal direction of said bead.
  • high-temperature-resistant yarns means spun yarns of fibers, non-flammable monofilaments or multifilament yarns and / or which decompose under the effect of heat and are capable of withstanding temperatures at least of the order of 250 ° C, preferably greater than 350 ° C.
  • This arrangement makes it possible to strengthen and improve the cohesion of the core, thus reducing the linear mass of external envelope required to hold the ribbons and the wire or wires together, as well as to form a substantially regular circular section.
  • the son or son are arranged in the center of the soul and surrounded by the carded or ribbons.
  • the high-temperature resistant yarns are chosen, alone or as a mixture, from the following yarns: meta-aramid yarn, para-aramid, or para-aramid and meta-aramid copolymer, glass, especially of the E type, phenolic yarns such as those marketed under the Kynol® brand, carbon threads.
  • the core comprises several ribbons, preferably at least 4 ribbons, a mixture of 85% rock fibers by weight and 15% of crimped fibers, in particular para-aramid fibers, each ribbon having a linear density ranging from 15 g / m to 50 g / m.
  • One or more son resistant to high temperatures can also be powered under tension parallel to the ribbons carded in the second step.
  • Said yarns are preferably arranged with respect to the card ribbons during feeding so as to end up in the center of the core of the bead, the card ribbons forming the periphery of the core.
  • the second step is performed on a braider on which it will be defined the number of bobbins necessary to ensure sufficient maintenance of the bead and satisfactory resilience, as well as the gauge required to obtain the dimensions of the bead sought.
  • the gauge is here defined as the internal diameter of the annular piece through which the son forming the outer envelope meet and come to apply to the core.
  • the fire bead 1 is composed of a core 2 and an outer shell 3.
  • the core 2 comprises rock fibers 4 intimately mixed with high temperature resistant crimped fibers having a length greater than or equal to 40 mm.
  • the core 2 is in the form of several carded ribbons arranged parallel to each other in the longitudinal direction (L) of said bead 1.
  • the core 2 comprises in this specific example two carded ribbons each having a linear density of the order 15 g / m.
  • Each ribbon comprises 85% by weight of rock fibers for 15% of para-aramid fibers.
  • the crimped support fibers 5 have an average length ranging from 40 mm to 80 mm. It may in particular be recycling fibers, of average length smaller than the original length, but which have the advantage of being less expensive.
  • the rock fibers represent approximately 64% by weight of the total weight of the bead 1.
  • the outer envelope 3 is formed of a braid 6 composed of glass multifilament yarns 7, in particular of the E type, having a titration ranging from 500 tex to 2000 tex, in this specific example of the order of 650 tex. Step 8 of the braid is about 17 mm.
  • the bead 1 has a linear density of the order of 45 g / m +/- 10% and a substantially circular section having a diameter of the order of 10 mm +/- 10%.
  • the outer casing 3 represents about 25% by weight of the total weight of the bead 1.
  • the outer casing 3 is braided on a 12-spindle braiding machine of which only 6 spindles comprise a spool of multifilament yarns 7.
  • the two carded ribbons are fed with tension to a braider and this so as to be arranged parallel when they pass in the center braider. Since the core 2 is of regular appearance and linear density, the purpose of the braid 6 is simply to hold said ribbons together and to give a substantially circular section to the bead 1, aided thereby by the braiding gage.
  • the larger braiding pitch allowed by the present invention, makes it possible to reduce the relative amount of the outer casing and to speed up the speed of the braiding machine. In this specific example, the speed of the braider is of the order of 75 m / hour.
  • the second example of bead 9 according to the figure 2 differs from the first example of bead 1 in that the core 10 is composed of five carded ribbons 11 and two multifilament reinforcing son 12 in a high temperature resistant material, in particular type E glass. a titration ranging from 500 tex to 3000 tex, preferably of the order of 2000 tex, and represent about 2% by weight of the total weight of the bead 9.
  • the carded ribbons 11 comprise a mixture of rock fibers and resistant fiber supports at high temperatures identical to that described in the first example.
  • the carded ribbons 11 are broken down into four ribbons of 40 g / m and a ribbon of 20 g / m.
  • the crimped support fibers represent about 13% by weight of the total weight of the bead 9.
  • the bead 9 has a linear density of the order of 210 g / m +/- 10% and a substantially circular section having a diameter 9a of the order 30 mm +/- 10%.
  • the outer casing 13 is also braided and represents about 9% of the total weight of the bead 9.
  • the cross section of the bead 9 shown in FIG. figure 3 comprises six intersections 14 of high temperature resistant multifilament yarns 16 for holding together the carded ribbons 11 and the reinforcing yarns 12.
  • the outer envelope 13 preferably has a pitch of about 12.5 mm.
  • the outer casing of a bead of the prior art having a diameter of the order of 30 mm represents about 22% by weight of the total weight of said bead which represents a significant additional cost and limits the cladding speeds.
  • This bead also has the drawbacks developed above which include the lack of resilience, cohesion, the tendency to fraying and a very irregular appearance.
  • the figure 4 illustrates a bead according to the first or second embodiment 1.9 disposed in a ground joint 20 with a mechanical seal cover 21.
  • the diameter of the bead 1.9 is chosen according to the size of the seal 20 to be closed, preferably the diameter of the bead 1.9 is slightly greater than that of the ground joint 20.
  • the walls of the ground joint 20 are coated with a layer of glue, for example an incombustible silicate-based glue, so that the bead 1.9 is perfectly secured in the position according to which the operator has placed.
  • the choice of the diameter of the bead 1.9 is also determined to maintain a compression of about 30% during the maximum opening of the seal in case of fire.
  • the manufacturing technology of the bead according to the present invention from this point of view a certain progress, giving it a much higher resilience.
  • the bead 1.9 ensures its fire function by slowing the spread of fire and gases in the direction F.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Building Environments (AREA)
  • Fireproofing Substances (AREA)
  • Sealing Material Composition (AREA)
EP10156940A 2009-03-19 2010-03-18 Feuerschutzwulst und Herstellungsverfahren eines Feuerschutzwulsts Not-in-force EP2230360B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0951760A FR2943257B1 (fr) 2009-03-19 2009-03-19 Bourrelet coupe-feu

Publications (2)

Publication Number Publication Date
EP2230360A1 true EP2230360A1 (de) 2010-09-22
EP2230360B1 EP2230360B1 (de) 2012-05-23

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EP (1) EP2230360B1 (de)
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122157A1 (en) * 2013-02-07 2014-08-14 Lm Wp Patent Holding A/S Limp, elongate element with glass staple fibres
WO2016026743A1 (fr) * 2014-08-20 2016-02-25 Gv2 International - Veda France Structure de joint coupe-feu en boudin
FR3032985A1 (fr) * 2015-02-25 2016-08-26 Gv2 Int - Veda France Structure de joint coupe feu en boudin, notamment pour l'industrie de la construction immobiliere
FR3075057A1 (fr) * 2017-12-14 2019-06-21 A.D.I. Cordon coupe-feu comprenant une enveloppe externe en film de matiere plastique, en elastomere, en feutre aiguillete ou en non-tisse

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0066414A2 (de) * 1981-05-20 1982-12-08 E.I. Du Pont De Nemours And Company Poly(tetrafluorethylen)-Filter
US4622251A (en) * 1985-01-18 1986-11-11 Backer Rod Manufacturing & Supply Co. Non-combustible filler rod for providing fire tight joint packing
WO2005111289A1 (en) * 2004-04-30 2005-11-24 E.I. Dupont De Nemours And Company Fire blocker fiber composition, high loft web structures, and articles made therefrom
EP1855346A1 (de) * 2004-11-04 2007-11-14 Fuji Corporation Vorläufer-filz für elektroleitfähiges material für elektroden und verfahren zur herstellung eines elektroleitfähigen materials für elektroden

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066414A2 (de) * 1981-05-20 1982-12-08 E.I. Du Pont De Nemours And Company Poly(tetrafluorethylen)-Filter
US4622251A (en) * 1985-01-18 1986-11-11 Backer Rod Manufacturing & Supply Co. Non-combustible filler rod for providing fire tight joint packing
WO2005111289A1 (en) * 2004-04-30 2005-11-24 E.I. Dupont De Nemours And Company Fire blocker fiber composition, high loft web structures, and articles made therefrom
EP1855346A1 (de) * 2004-11-04 2007-11-14 Fuji Corporation Vorläufer-filz für elektroleitfähiges material für elektroden und verfahren zur herstellung eines elektroleitfähigen materials für elektroden

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122157A1 (en) * 2013-02-07 2014-08-14 Lm Wp Patent Holding A/S Limp, elongate element with glass staple fibres
US20150368861A1 (en) * 2013-02-07 2015-12-24 Lm Wp Patent Holding A/S Limp, Elongate Element with Glass Staple Fibres
WO2016026743A1 (fr) * 2014-08-20 2016-02-25 Gv2 International - Veda France Structure de joint coupe-feu en boudin
FR3024947A1 (fr) * 2014-08-20 2016-02-26 Gv2 Internat Veda France Structure de joint coupe-feu en boudin
FR3032985A1 (fr) * 2015-02-25 2016-08-26 Gv2 Int - Veda France Structure de joint coupe feu en boudin, notamment pour l'industrie de la construction immobiliere
FR3075057A1 (fr) * 2017-12-14 2019-06-21 A.D.I. Cordon coupe-feu comprenant une enveloppe externe en film de matiere plastique, en elastomere, en feutre aiguillete ou en non-tisse

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EP2230360B1 (de) 2012-05-23
FR2943257A1 (fr) 2010-09-24
FR2943257B1 (fr) 2011-04-15

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