EP0317599A1 - Enveloppe d'etancheite ignifuge et procede de production d'un tampon thermo-gonflant - Google Patents

Enveloppe d'etancheite ignifuge et procede de production d'un tampon thermo-gonflant

Info

Publication number
EP0317599A1
EP0317599A1 EP88904601A EP88904601A EP0317599A1 EP 0317599 A1 EP0317599 A1 EP 0317599A1 EP 88904601 A EP88904601 A EP 88904601A EP 88904601 A EP88904601 A EP 88904601A EP 0317599 A1 EP0317599 A1 EP 0317599A1
Authority
EP
European Patent Office
Prior art keywords
gel
fireproof
volume
grains
dried
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Withdrawn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
EP88904601A
Other languages
German (de)
English (en)
Inventor
Tibor Kenderi
Lászl KENDERI
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.)
KENDERI LASZL
Original Assignee
KENDERI LASZL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KENDERI LASZL filed Critical KENDERI LASZL
Publication of EP0317599A1 publication Critical patent/EP0317599A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B30/00—Compositions for artificial stone, not containing binders
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures

Definitions

  • the present invention relates to a fireproof sealbag provided with an external fireproof fabric cover, preferably made of textile glass, and in given case with a second, internal cover made of damp-proof foil, and filled with a stuffing containing a fireproof filling material and an intumescent material to be primarily used for the temporary and/or permanent fireproof sealing of cable passages or other holes and ducts. Furthermore the invention relates to a process for the production of said intumescent material capable of swelling on elevated temperatures.
  • thermo-foaming US-PS 4 493 173
  • expanding US-PS 4 376 230
  • flame arresting gas generating material DE-OS 34 19 352
  • thermo- foaming material In order to eliminate this drawback, the covering material of the bag partially or completely was coated with thermo- foaming material.
  • the drawback of this method was that it had no adequate swelling capacity for penetration into the gaps, moreover the foaming or swelling layer gradually lost its swelling capacity upon the effect of microbes, fungi or moisture.
  • the main feature of the currently used sealbags is that they are made of textile glass and the filling material or part of it swells upon the effect of heat generated during fire (see DE-PS 35 35 625).
  • This fireproof sealbag is mineral cotton treated as to swell by about 50 volume% at 280 °C. This swelling however, occurs only in open space, which means that when the sealbag is packed into the passage, it is not capable to swell into the gaps and necks, because the compressive strength of the swelling material is low. Hence it does not provide the required tight sealing.
  • the fireproof sealing pad described in the HU-AS T/26619 is provided with a fireproof cover, in which an easily melting internal cover is arranged and 50-99 mass% of its stuffing is fireproof granular filling material and 1-20 mass's is loose, retarding material inclined to swelling.
  • the fire-proof granular material may be quartzsand, fluedust, swollen perlite or other mineral filling material.
  • the retarding material inclined to swelling contains 15-25 volume% ammonium phosphate, 5-15 mass% polyalcohol and 4-14 mass% carbamide, urotropine and/or melanine.
  • the object of the present invention is therefore to profide a fireproof sealbag, which expands its volume upon heat effect at a much lower temperature and to a considerably greater extent, than those used so far, and the compressive strength of the swelling material is sufficiently high to provide tight sealing by penetrating into the gaps of the passages. Further object of the present invention is to provide a process for production of swelling pad for said sealbags.
  • a fireproof sealbag is provided with an external cover made of fireproof fabric, preferably textile glass and in given case with an internal cover made of damp-proof foil and filled with fireproof filling material, as well as with a thermo-swelling pad, wherein the stuffing contains 25-45 volume% sand or granular fireproof material of similar specific weight, and 20-40 volume% perlite or other heat insulator as filling material, and 20-40 volume% sodium enriched and dried silicic acid gel grains as swelling pad.
  • the stuffing may contain 2-5 % betonite to improve the density and space filling.
  • the external textile glass layer of the cover may be impregnated with a conventional fireproof paint to improve the fire proofness and to fix the textile fibres against slipping apart.
  • first silicic acid gel is prepared by mixing 60-80 % waterglass and 40-20 % gelforming additive, e.g. sodiumchloride or sodium carbonate, then the gel is dried and grains are formed.
  • the grains can be prepared by crushing the dried gel, or in given case by granulation of the still liquid gel in air jet or by other means.
  • the silicic acid gel is dried at room temperature, or max. 80°C for at least 5 hours. The drying requires adequate ventilation.
  • the pad used in the bags begins to expand its volume at a temperature lower by more than 100°C, than the best versions of the traditional bags.
  • the pad swells at a lower temperature and to a considerably greater extent than the earlier ones. Upon the effect of heat, it expands to 6-10 times its original volume.
  • Composition of the filling material ensures the optimal mechanical and heat insulation properties of the stuffing.
  • Silicic acid gel was prepared with 80 % waterglass and 20 % sodium chloride. The gel was dried at room temperature for 48 hours, then crushed to about 3 mm diameter grains in a hammer mill.
  • the grains were put into a furnace, the temperature of which was gradually increased. The grains began to swell at 140°C and were swollen to eight-ten times their original size upon reaching 150°C temperature in 3 minute.
  • Silicic acid gel was prepared with 60 % waterglass and 40 % sodium carbonate. The gel was dried at 75°C for 8 hours, then broken up between crushing rolls. The size of the obtained fragments was about 4 mm. The grains were put into a furnace and while heating, the grains were swollen to 6-8 times their original size at 150°C.
  • Fire resistance test was conducted in compliance with the specifications of standard DIN 4102 with traditional sealbags and with those according to the invention.
  • the different sealbags were tested one by one.
  • a 80x40 cm hole in the upper horizontal wall of the furnace provided with burner was sealed with various sealbags in a width of 35 cm.
  • Vertical cable passages were formed in the hole.
  • the passage contained three cables of 40 mm diameter and twelve cables of 8 mm diameter. The latter ones were led through the hole in metal tray.
  • Thermocouples were attached to different points of the passage to sense the temperatures measured on the outside of the passage (on the surface of the bags, insulation of the cables and on the cables). The test was conducted for 1.5 hour, the furnace was heated from 0 to 1000°C in about half an hour. Some of the tested bags contained swelling pad described in example 1. This represented 25 % of the bags' content, apart from which the stuffing contained 40 volume% sand, 32 volume% perlite and 2 volume% bentonite. These were the samples marked with A.
  • composition of the other part of the sealbags (samples B) according to the invention was the following:
  • the textile glass bag containing the stuffing was impregnated with Alucot T-250 silicone-based fireproof plant.
  • test was conducted even with sealbags available in the trade, a certain part of which contained specially treated mineral cotton stuffing (samples C), and the other part was provided with mineral cotton cushion stuffing coated by thermo-foaming material (samples D).
  • the sealbags according to the invention have more favourable characteristics in every respect than those now available in the trade: the sealing is safe, efficient and durable, in case of fire the padding materials swell socner and to a greater extent than those used earlier, and they form a solidifying, tight wall in the hole.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Fireproofing Substances (AREA)
  • Sealing Material Composition (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Building Environments (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Packages (AREA)

Abstract

L'enveloppe d'étanchéité ignifuge décrite comprend un revêtement extérieur en tissu ignifuge, tel que de préférence de la fibre de verre, et dans des cas déterminés à revêtement interne constitué par une feuille imperméable. L'enveloppe est remplie d'un matériau de bourrage contenant un matériau tampon thermo-gonflant ayant de 25 à 45 % en volume de sable ou d'un matériau granulaire ignifuge de poids spécifique similaire. Le matériau de bourrage comprend également 20 à 40 % en volume de berlite ou d'un autre matériau thermo-isolant comme matériau de remplissage et 20 à 40 % en volume d'un gel granulaire à base d'acide silicique, séché et enrichi au sodium, comme matériau tampon gonflant. Le matériau de bourrage peut contenir dans certains cas 2 à 5 % de bétonite, afin d'améliorer la densité et le remplissage de l'espace. Lors de la production du matériau tampon gonflant, on prépare d'abord le gel à base d'acide silicique en mélangeant 60 à 80 % de verre soluble et 40 à 20 % d'un additif de formation de gel, tel que du chlorure de sodium ou du carbonate de sodium, puis on sèche le gel et on on forme les grains. On peut préparer les grains en broyant le gel séché ou, dans certains cas, par granulation du gel encore liquide dans un jet d'air ou par d'autres moyens.
EP88904601A 1987-05-13 1988-05-13 Enveloppe d'etancheite ignifuge et procede de production d'un tampon thermo-gonflant Withdrawn EP0317599A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU214687 1987-05-13
HU872146A HU204111B (en) 1987-05-13 1987-05-13 Fire-blocking sealing bag and method for producing insert swelling by the effect of heat

Publications (1)

Publication Number Publication Date
EP0317599A1 true EP0317599A1 (fr) 1989-05-31

Family

ID=10958009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88904601A Withdrawn EP0317599A1 (fr) 1987-05-13 1988-05-13 Enveloppe d'etancheite ignifuge et procede de production d'un tampon thermo-gonflant

Country Status (11)

Country Link
EP (1) EP0317599A1 (fr)
CN (1) CN1030601A (fr)
AU (1) AU1782188A (fr)
CS (1) CS270587B2 (fr)
DD (1) DD272327A5 (fr)
DK (1) DK12789A (fr)
HU (1) HU204111B (fr)
IL (1) IL86239A0 (fr)
RU (1) RU2005764C1 (fr)
UA (1) UA15655A1 (fr)
WO (1) WO1988008790A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715165B1 (fr) * 1994-01-14 1996-03-22 Rhone Poulenc Chimie Produit utilisable en détergence comprenant du silicate vitreux hydraté.
US6698146B2 (en) * 2001-10-31 2004-03-02 W. R. Grace & Co.-Conn. In situ molded thermal barriers
US7152385B2 (en) 2001-10-31 2006-12-26 W.R. Grace & Co.-Conn. In situ molded thermal barriers
RU2506378C2 (ru) * 2012-03-05 2014-02-10 Юрий Владимирович Кривцов Подушка противопожарная уплотнительная "ппву-1"

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245519B (de) * 1963-04-01 1967-07-27 Herberts & Co Gmbh Dr Kurt Brandschutzueberzugsmittel
US4113989A (en) * 1977-03-01 1978-09-12 Siemens Aktiengesellschaft Electronic telephone system featuring switching networks having thyristors for single-wire switching
ZA817057B (en) * 1980-10-25 1982-09-29 Foseco Int Gel forming compositions
DE3419352C2 (de) * 1984-05-24 1986-08-28 Werner 7925 Dischingen Hauff Durchführung für mindestens eine Leitung, insbesondere ein elektrisches Kabel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8808790A1 *

Also Published As

Publication number Publication date
IL86239A0 (en) 1988-11-15
HU204111B (en) 1991-11-28
HUT55471A (en) 1991-05-28
CS270587B2 (en) 1990-07-12
CN1030601A (zh) 1989-01-25
AU1782188A (en) 1988-12-06
RU2005764C1 (ru) 1994-01-15
UA15655A1 (uk) 1997-06-30
WO1988008790A1 (fr) 1988-11-17
DK12789D0 (da) 1989-01-12
DK12789A (da) 1989-03-13
CS309688A2 (en) 1989-11-14
DD272327A5 (de) 1989-10-04

Similar Documents

Publication Publication Date Title
KR100566443B1 (ko) 방화벽재
US4363199A (en) Fire resistant sealing system for holes in fire resistant building partitions
JP2839149B2 (ja) 防火材
EP0062298B1 (fr) Etanchéité durcissant à la chaleur pour accouplements flexibles
KR100440563B1 (ko) 방화벽펠트
WO2006126181A2 (fr) Joint d'etancheite intumescent
JPS6042285A (ja) 膨脹性粒状組成物及び該組成物のシート材
JP2009540156A (ja) 耐火充填構造の防火区画処理用の充填材及びその製造方法
JPS6296570A (ja) 耐燃性材料
JPS59500816A (ja) 防火材料
CN1108352C (zh) 一种防火包及其制造方法
EP0317599A1 (fr) Enveloppe d'etancheite ignifuge et procede de production d'un tampon thermo-gonflant
CN1073707A (zh) 膨胀型电缆阻火包的制造工艺
HU193057B (en) Fireproof packing
JPH0440500B2 (fr)
NO890148L (no) Brannsikker tettepose og fremgangsmaate for fremstilling av en varmesvellende pute.
RU2037022C1 (ru) Устройство для огнезащитной заделки проходов коммуникаций в различных конструкциях
JP2783698B2 (ja) 顆粒状耐火充填材
JPS5931339A (ja) 壁あるいは床貫通部防火工法
US4272388A (en) Lightweight injectable, thixotropic foam insulating material
EP0759961B1 (fr) Compositions intumescentes
Dembsey et al. The effect of ignition source exposure and specimen configuration on the fire growth characteristics of a combustible interior finish material
CN113964666B (zh) 供电系统用柜体的防火防潮施工结构以及施工方法
JPH0736665B2 (ja) ケーブル貫通部の防火構造
KR20230002345U (ko) 유해가스 저감용 방화블록

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19890516

17Q First examination report despatched

Effective date: 19910206

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19911231