EP2626501A1 - Procédé de fabrication d'un profilé de cadre pour porte coupe-feu - Google Patents

Procédé de fabrication d'un profilé de cadre pour porte coupe-feu Download PDF

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Publication number
EP2626501A1
EP2626501A1 EP13150807.9A EP13150807A EP2626501A1 EP 2626501 A1 EP2626501 A1 EP 2626501A1 EP 13150807 A EP13150807 A EP 13150807A EP 2626501 A1 EP2626501 A1 EP 2626501A1
Authority
EP
European Patent Office
Prior art keywords
groove
frame profile
intumescent composition
door
intumescent
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.)
Withdrawn
Application number
EP13150807.9A
Other languages
German (de)
English (en)
Inventor
Tom Van Leuven
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RF Technologies NV SA
Original Assignee
RF Technologies NV SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP12000128.4A external-priority patent/EP2615235A1/fr
Priority claimed from EP12075039.3A external-priority patent/EP2653644A1/fr
Application filed by RF Technologies NV SA filed Critical RF Technologies NV SA
Priority to EP13150807.9A priority Critical patent/EP2626501A1/fr
Publication of EP2626501A1 publication Critical patent/EP2626501A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/161—Profile members therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor

Definitions

  • the present invention relates to a profile for the manufacturing of a frame of fire resistant doors.
  • Fire prevention is facing more and more stringent requirements to be matched with increasing consumer demands in terms of design.
  • Fire retardant doors have been developed comprising a peripheral frame wherein a groove is provided accommodating a strip of an intumescent composition.
  • US 6,115,976 A and BE 1,011,525 A3 both describe a frame profile for fire retardant doors comprising a groove accommodating a strip of an intumescent composition, wherein said strip is covered with a decorative strip of wood veneer or plastic.
  • GB 1,377,059 discloses a frame profile for fire retardant doors manufactured by laminating fire-resistant plywood alternated with strips of intumescent composition.
  • a disadvantage of such frame profile is that the intumescent composition can expand in several directions and not necessarily in the direction of the gap between the door and the outer (surrounding) door frame such that rather high volumes of intumescent composition are needed to ensure integrity of the smoke barrier obtained.
  • the present invention addresses the above demands and provides a frame profile for a fire resistant door, said profile comprising:
  • the present invention also concerns a method for manufacturing a frame profile for a fire resistant door, said method comprising:
  • the present invention concerns a door comprising a frame profile as identified above, whereby the groove with the intumescent material provided therein is situated at the outer periphery of the door frame.
  • the solid beam is manufactured out of a solid body, preferably of a composite comprising wood.
  • the groove provided in the solid beam has a depth/width ratio of 1 or more, preferably 1,5 or more, most preferably 2 or more.
  • the width of the groove is preferably 7mm broad or less.
  • the frame profile of the present invention preferably lacks a decorative strip or masking strip covering the groove comprising the intumescent composition.
  • the intumescent composition is preferably introduced in said groove by an extrusion process.
  • Figure 1 represents a fire resistant door 1 comprising a frame 2 surrounding a core 3 fixed in said frame 2.
  • the frame comprises vertical styles and horizontal beams further referred to as frame profiles 4.
  • the frame profiles 4 are provided with a groove 5 at the outer periphery of the frame, which grooves 5 extend in the longitudinal direction of the frame profiles 4 and preferably over the entire length of each profile 4.
  • the groove 5 has a depth (D)/width (W) ratio of 1 or more, more preferably 1,5 or more and most preferably 2 or more.
  • the width (W) of each groove 5 - measured at the outer peripheral surface of the frame profile- is preferably less than 7 mm broad.
  • each profile can be provided with a plurality of grooves 5 as represented in figures 3 to 5 .
  • an intumescent composition 6 comprising an intumescent material.
  • intumescent material is defined as one that undergoes a chemical change when exposed to heat or flames, becoming viscous then forming expanding bubbles that harden into a dense, heat insulating multicellular char.
  • the intumescent composition preferably comprises an intumescent material, an organic binder and a flame retardant.
  • the intumescent materials are water-insoluble mineral granules.
  • the intumescent material may be a granular hydrated alkali metal silicate such as described in U. S. Pat. No. 4,273,879 .
  • the preferred alkali metal silicates described in the '879 patent are granulated sodium silicates having a moisture content of about 5 to about 30 weight percent, a silicon dioxide (Si02) to sodium oxide (Na20) ratio ranging from about 2.0: 1 to about 3.75: 1, and particle sizes ranging from about 0.2 mm to 2.0 mm (i. e. about 95% of the particles being greater than 0.2 mm).
  • a preferred water-insoluble mineral granule is a mixture of alkali metal silicate represented by the formula M20: xSi02 in which M is an alkali metal.
  • the mixture also includes at least one oxy boron compound which may be selected from boric acid and borate salts of Group I and II elements and water.
  • the weight ratio X ranges from about 1.5 to about 4, the molar ratio of boron to M is between about 0.2 and about 0.9, and the water comprises about 5 to 15 weight percent of the total composition.
  • silicates There are many silicates which could be used. Examples cited in US Pat. No. 4,521,333 include sodium silicate, lithium silicate and potassium silicate.
  • oxy boron compounds which could be used. Examples cited in Graham et al.'333 of oxy boron compounds include metaborate, tetraborate, perborate, polyborate radicals, boric acid, colemanite, calcium metaborate, magnesium borate and zinc borate.
  • intumescent compounds may be used especially if admixed with the above silicates.
  • These intumescent compounds include, for example, expandable graphite, vermiculite, perlite, NaBSi, glass particles, mica, inorganic and organic blowing agents and mixtures thereof.
  • expandable graphite may be admixed with the granulated hydrated alkali metal silicate intumescent composition mentioned above.
  • the amount of intumescent material typically may range from about 10 to about 70 wt-%, preferably from about 25 to about 60 wt-%, based on a total weight of fire sealing composition.
  • the second component of the intumescent composition is a, preferably halogen-free, organic binder.
  • This material is a thermoplastic or thermosetting binder.
  • thermoplastic materials include substantially linear polymers such as acrylate polymers, ethylene vinyl acetate copolymers, natural rubbers, styrene butadiene copolymers, butadiene acrylonitrile copolymers, polyisoprene, polybutadiene, polyvinyl acetate, polyethylene terephthalate, polyethylene, polypropylene, polystyrene, and combinations and mixtures of these polymers.
  • thermoset materials examples include epoxies, phenolics, polyesters, silicones, polyurethanes, polyimides and the like.
  • suitable thermoset materials include thermoplastic materials capable of being cross-linked with the addition of a crosslinking agent and/or exposure to an appropriate energy source such as an electron beam.
  • the materials include, for example, natural rubber, styrene butadiene copolymers, butadiene acrylonitrile copolymers, and polybutadiene.
  • the latex material is preferably dried prior to the high shear mixing to remove water and other volatiles, if present.
  • thermoplastic or thermosetting binders include synthetic or natural isoprene rubber, ethylene propylene rubber, EPDM rubber, and polybutadiene.
  • the most preferred binder contains an ethylene vinyl acetate copolymer. Blends of these materials, e.g., ethylene vinyl acetate/synthetic isoprene rubber may also be employed.
  • the amount of binder may typically range from about 10 to about 50 wt-%, preferably from about 12 to about 40 wt-%, based on the total weight of the fire barrier material.
  • a third ingredient in the intumescent composition is a flame retardant.
  • This flame retardant is preferably a phosphorous and/or nitrogen containing material which promotes the charring of organic binders by forming an acid when heated.
  • Preferred phosphorous containing compounds include compounds containing ammonium polyphosphate (APP).
  • flame retardant compounds when present, are in an amount ranging from about 10 to about 50 wt-%, preferably about 15 to about 40 wt-%, based on the total weight of the fire sealing composition.
  • thermosetting materials may be employed as a binder
  • curative or crosslinking agents may be present such as, for example, organic peroxides such as dicumyl peroxide.
  • Plasticizers preferably a flame retardant plasticizer, most preferably an organic phosphate plasticizer.
  • the amount of plasticizer should be limited to avoid the composition becoming too soft or putty-like.
  • the above ingredients are combined through a high shear mixing operation and directly extruded into a groove 5 of a frame profile 4 at a pressure of 200 bar or higher.
  • the composition is made by high shear mixing of the various ingredients using for example, a 2-roll mill, Banbury mixer, or, preferably, a twin-screw extruder equipped with heating/cooling capabilities to control the processing temperature.
  • a substantially volatile-free state means that the high shear mixing takes place in a chamber where the components of the composition are free of volatile organic solvents and the binder is also essentially free of water (i. e., containing less than 0.25% by weight). This water being other than bound water, wherein bound water is water that does not evaporate until the material is heated to at least 100 C (preferably, at least 150 C, more preferably at least 250 C).
  • the binder is either pre-dried, e. g. in an oven, or, if dry, directly added to the mixing chamber and mixed until thoroughly blended. Any fillers, processing aids, char forming resins, waxes, colorants, flame retardants, antioxidants, antiozonants, curatives, and plasticizers are then added while the mixing operation continues. The last ingredient added is usually the intumescent material.
  • the composition is typically mixed until homogeneous and smooth (i. e., not lumpy).
  • the composition can also be prepared by adding the ingredients to a heated zone of a twin screw extruder where volatiles, if present, are removed prior to entering a mixing zone. Following mixing, the composition is extruded directly into the groove 5 of a frame profile at elevated pressures of 200 bar or higher.
EP13150807.9A 2012-01-11 2013-01-10 Procédé de fabrication d'un profilé de cadre pour porte coupe-feu Withdrawn EP2626501A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13150807.9A EP2626501A1 (fr) 2012-01-11 2013-01-10 Procédé de fabrication d'un profilé de cadre pour porte coupe-feu

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12000128.4A EP2615235A1 (fr) 2012-01-11 2012-01-11 Procédé de fabrication d'un profilé de cadre pour porte coupe-feu
EP12075039.3A EP2653644A1 (fr) 2012-04-17 2012-04-17 Procédé de fabrication d'un profilé de cadre pour porte coupe-feu
EP13150807.9A EP2626501A1 (fr) 2012-01-11 2013-01-10 Procédé de fabrication d'un profilé de cadre pour porte coupe-feu

Publications (1)

Publication Number Publication Date
EP2626501A1 true EP2626501A1 (fr) 2013-08-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13150807.9A Withdrawn EP2626501A1 (fr) 2012-01-11 2013-01-10 Procédé de fabrication d'un profilé de cadre pour porte coupe-feu

Country Status (1)

Country Link
EP (1) EP2626501A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1377059A (en) 1972-06-23 1974-12-11 Micropore International Ltd Fire-proof structures
US4273879A (en) 1978-03-31 1981-06-16 Minnesota Mining And Manufacturing Company Intumescent fire retardant composites
US4521333A (en) 1983-06-20 1985-06-04 Minnesota Mining And Manufacturing Company Intumescent silicates having improved stability
BE1011525A3 (nl) 1997-10-31 1999-10-05 Houtconstructies Wyckaert Nv Brandwerende poort.
US6115976A (en) 1999-09-20 2000-09-12 Wood Door Products, Inc. Door edge assembly for creating a smoke seal about a closed door mounted within a door frame
WO2008030087A1 (fr) * 2006-09-05 2008-03-13 Wijnveld B.V. Porte résistante au feu et procédé de fabrication d'une poutre de bord, bande de renforcement et poutres de vitrage pour ladite porte
US20110314755A1 (en) * 2010-06-25 2011-12-29 Langille Kevin B Intumescent fire door edge system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1377059A (en) 1972-06-23 1974-12-11 Micropore International Ltd Fire-proof structures
US4273879A (en) 1978-03-31 1981-06-16 Minnesota Mining And Manufacturing Company Intumescent fire retardant composites
US4521333A (en) 1983-06-20 1985-06-04 Minnesota Mining And Manufacturing Company Intumescent silicates having improved stability
BE1011525A3 (nl) 1997-10-31 1999-10-05 Houtconstructies Wyckaert Nv Brandwerende poort.
US6115976A (en) 1999-09-20 2000-09-12 Wood Door Products, Inc. Door edge assembly for creating a smoke seal about a closed door mounted within a door frame
WO2008030087A1 (fr) * 2006-09-05 2008-03-13 Wijnveld B.V. Porte résistante au feu et procédé de fabrication d'une poutre de bord, bande de renforcement et poutres de vitrage pour ladite porte
US20110314755A1 (en) * 2010-06-25 2011-12-29 Langille Kevin B Intumescent fire door edge system

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