EP1325199B1 - Schutzverfahren und -vorrichtung - Google Patents

Schutzverfahren und -vorrichtung Download PDF

Info

Publication number
EP1325199B1
EP1325199B1 EP01947658A EP01947658A EP1325199B1 EP 1325199 B1 EP1325199 B1 EP 1325199B1 EP 01947658 A EP01947658 A EP 01947658A EP 01947658 A EP01947658 A EP 01947658A EP 1325199 B1 EP1325199 B1 EP 1325199B1
Authority
EP
European Patent Office
Prior art keywords
solution
intumescent
substance
cloth
adhesive
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.)
Expired - Lifetime
Application number
EP01947658A
Other languages
English (en)
French (fr)
Other versions
EP1325199A1 (de
Inventor
Derek Alfred Ward
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.)
Environmental Seals Ltd
Original Assignee
Environmental Seals Ltd
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 Environmental Seals Ltd filed Critical Environmental Seals Ltd
Publication of EP1325199A1 publication Critical patent/EP1325199A1/de
Application granted granted Critical
Publication of EP1325199B1 publication Critical patent/EP1325199B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions

Definitions

  • This invention relates to a process for protecting objects in the event inter alia of a fire and apparatus for use in this process.
  • Another apparatus for conserving such objects comprises an absorbent sheet of woven cloth material impregnated on at least one of its sides with a solution containing an intumescent substance (see US3934066).
  • a thermal barrier may be provided between the intumescent layer and the object to be protected in order to delay heat reaching the intumescent layer.
  • Water is preferred as a solvent for the intumescent substance as most organic solvents are said to require long drying times and to be generally hazardous.
  • the present invention sets out to provide an economic and effective process for protecting and conserving such objects; the invention also sets out to provide apparatus for use in this process.
  • apparatus for protecting the exposed surfaces of objects comprising an absorbent sheet of woven cloth material impregnated on at least one of its sides with a solution containing an intumescent substance, and an adhesive for adhering the sheet to the object to be protected; characterised in that the adhesive includes an intumescent substance and the solution is an aqueous solution comprising a volatile organic solvent to reduce the drying time of the solution.
  • the intumescent substance for both the solution and the adhesive may comprise an alkaline metal silicate or exfoliating graphite.
  • the intumescent content of the filler, coating and/or masonry paint may also comprise an alkaline metal silicate or exfoliating graphite.
  • a preferred alkaline metal silicate is sodium silicate and the solution may, for example, contain up to about 50% by weight of the intumescent substance. In a preferred embodiment, the solution contains up to about 30% by weight, more especially up to about 20% by weight of the intumescent substance.
  • concentration of intumescent substance employed will depend inter alia upon the degree of intumescence and longevity of fire protection required.
  • the aqueous solution contains one or more volatile organic solvents in order to reduce the drying time of the solution.
  • the aqueous solution may contain thickening agents, suspending agents and stabilising agents, and may be in the form of an emulsion or suspension.
  • the absorbent sheet may be produced from, for example, glass fibres. In a preferred embodiment both sides of the sheet are impregnated with the intumescent containing solution.
  • the intumescent containing solution may be applied to the sheet with, for example, a brush or spray.
  • the sheet may be immersed in a quantity of the solution.
  • the sheet may be pre-coated with a layer of adhesive on one of its surfaces, the layer being protected by a removable sheet of, for example, cloth, paper or card.
  • the adhesive may be sprayed onto the sheet and/or onto the object to be protected just prior to application of the cloth sheet to the object's surface.
  • the invention provides a process for protecting an object against fire, inclement weather or general decay by applying to the object's surface a sheet of woven cloth coated on at least one of its surfaces with a solution of an intumescent containing substance, the cloth being adhered to the object's surface by an adhesive which includes an intumescent substance.
  • the surface of the object may be cleaned or stripped prior to the application of the cloth.
  • the cloth may be applied to the object surface without prior cleaning or stripping.
  • cracks or other unwanted indentations may be filled with an intumescent containing filler.
  • a protective coating containing an intumescent substance may be applied to the exposed cloth surface.
  • one or more coatings of an intumescent containing masonry paint may be applied to the covered object surface.
  • each surface of a woven cloth sheet was impregnated with an intumescent containing solution marketed by the applicants under the trading style FB56.
  • the cloth was allowed to dry and is then wrapped around and adhered to the surface of the object (for example a pillar or column comprising a tree trunk) to be protected using an adhesive marketed by the applicants under the trading designation 1A Intumescent Adhesive (Product 46).
  • the cloth surface was coated with Applicants' intumescent coating product HW01 (Product 42) and, once dry, painted using a suitable masonry or other paint which may or may not include a quantity of intumescent material. Cracks or other unwanted indentations in the object surface were filled using the Applicants' intumescent filler material (Product 63) may be employed.
  • the intumescent substance for both the solution and the adhesive comprised an alkaline metal silicate or exfoliating graphite.
  • the intumescent content of the filter, coating and masonry paint also included an alkaline metal silicate or exfoliating graphite.
  • a preferred alkaline metal silicate is sodium silicate and the solution may, for example, contain up to about 50% by weight of the intumescent substance. In a preferred embodiment, the solution contains up to about 30% by weight, more especially up to about 20% by weight of the intumescent substance.
  • concentration of intumescent substance employed will depend inter alia upon the degree of intumescence required.
  • roof beams which in their unpreserved form comprised timber beams wrapped in a type of cloth weave hessian on the surface of which were water based paintings were initially sprayed with a washable intumescent containing coating material marketed by the Applicants under their trading style 321 (Product 66).
  • the beams were treated as mentioned above using a covering of woven cloth sheet impregnated with an intumescent containing solution and an adhesive containing an intumescent material.
  • the applied cloth and coatings provide protection for the respective object against general wear and tear, inclement weather and decay.
  • One advantage of the invention is that no or limited preparation of the object surface is required. There is, for example, no need to remove from the object surface paint or other decorations applied to the surface. In the event of fire, the intumescent contents of the impregnated cloth and other coating material expands rapidly to protect the covered object for periods of an hour or more.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Electrotherapy Devices (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Claims (10)

  1. Vorrichtung zum Schutz von freiliegenden Oberflächen von Gegenständen,
    wobei die Vorrichtung eine absorbierende Bahn aus gewebtem Stoffmaterial aufweist, die auf wenigstens einer ihrer Seiten mit einer Lösung imprägniert ist, die eine intumeneszente Substanz und einen Kleber enthält, um die Bahn auf dem zu schützenden Gegenstand festzulegen,
    dadurch gekennzeichnet, dass der Kleber eine intumeneszente Substanz aufweist und die Lösung eine wässrige Lösung ist, die ein flüchtiges, organisches Lösungsmittel enthält, um die Trockenzeit der Lösung zu verkürzen.
  2. Vorrichtung nach Anspruch 1, bei welcher die intumeneszente Substanz sowohl für die Lösung als auch für den Kleber aus einem alkalischen Metallsilikat oder einem Graphitschiefer besteht.
  3. Vorrichtung nach Anspruch 2, bei welcher das alkalische Metallsilikat , Natriumsilikat ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die Lösung bis zu etwa 30 Gewichtsprozent der intumeneszenten Substanz enthält.
  5. Vorrichtung nach Anspruch 4, bei welcher die Lösung bis zu etwa 20 Gewichtsprozent der intumeneszenten Substanz enthält.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, bei welcher der absorbierende Stoff aus Glasfasem erzeugt ist.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die Bahn mit einer Schicht eines Klebers auf einer ihrer Oberflächen überzogen ist.
  8. Verfahren zum Schutz eines Gegenstandes gegen Feuer, gegen ungünstige Witterung oder gegen einen allgemeinen Verfall, bei welchem auf der Oberfläche des Gegenstandes eine absorbierende Bahn aus einem gewebten Stoffmaterial aufgebracht wird, das auf wenigstens einer seiner Oberflächen mit einer Lösung imprägniert ist, die eine ein Intumeneszenz enthaltende Substanz enthält, wobei die Bahn an der Oberfläche des Gegenstandes durch einen Kleber festgelegt wird,
    dadurch gekennzeichnet, dass der Kleber eine intumeneszente Substanz enthält und dass die Lösung eine wässrige Lösung ist, die ein flüchtiges, organisches Lösungsmittel enthält, um die Trockenzeit der Lösung zu verkürzen.
  9. Verfahren nach Anspruch 8, bei welchem die Oberfläche des Gegenstandes vor der Aufbringung der Bahn gereinigt oder abgeschliffen wird.
  10. Verfahren nach den Ansprüchen 8 oder 9, bei welchem nach Anhaften der Stoffbahn an der Oberfläche des Gegenstandes ein Schutzüberzug, der eine intumeneszente Substanz enthält, auf die freiliegende Oberfläche der Stoffbahn aufgetragen wird.
EP01947658A 2000-10-13 2001-07-06 Schutzverfahren und -vorrichtung Expired - Lifetime EP1325199B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0025243.7A GB0025243D0 (en) 2000-10-13 2000-10-13 Protection process and apparatus
GB0025243 2000-10-13
PCT/GB2001/003064 WO2002031282A1 (en) 2000-10-13 2001-07-06 Protection process and apparatus

Publications (2)

Publication Number Publication Date
EP1325199A1 EP1325199A1 (de) 2003-07-09
EP1325199B1 true EP1325199B1 (de) 2006-03-15

Family

ID=9901312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01947658A Expired - Lifetime EP1325199B1 (de) 2000-10-13 2001-07-06 Schutzverfahren und -vorrichtung

Country Status (7)

Country Link
EP (1) EP1325199B1 (de)
CN (1) CN1469956A (de)
AT (1) ATE320531T1 (de)
AU (1) AU2001269304A1 (de)
DE (1) DE60117987D1 (de)
GB (1) GB0025243D0 (de)
WO (1) WO2002031282A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909699B1 (fr) * 2006-12-12 2011-11-25 Aurelio Vicquery Procede de recouvrement des fissures et bande a pont.
NL2001052C2 (nl) * 2007-08-20 2009-02-23 Altena Services B V Flexibele vaste brandwerende coating, werkwijze voor het aanbrengen van een brandwerende coating op een ondergrond, en ondergrond voorzien van een dergelijke coating.
CN102912624A (zh) * 2011-08-02 2013-02-06 上海优先装饰材料有限公司 发泡型纺织品阻燃剂及其制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722523A (en) * 1952-09-13 1955-11-01 Glidden Co Intumescent coating composition, and binder and process therefor
US3934066A (en) * 1973-07-18 1976-01-20 W. R. Grace & Co. Fire-resistant intumescent laminates

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915777A (en) * 1971-07-22 1975-10-28 Albi Manufacturing Co Inc Method of applying fire-retardant coating materials to a substrate having corners or other sharp edges
DE4041470A1 (de) * 1990-12-22 1992-06-25 Bayer Ag Intumeszenzfaehige flaechengebilde, deren herstellung und deren verwendung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722523A (en) * 1952-09-13 1955-11-01 Glidden Co Intumescent coating composition, and binder and process therefor
US3934066A (en) * 1973-07-18 1976-01-20 W. R. Grace & Co. Fire-resistant intumescent laminates

Also Published As

Publication number Publication date
DE60117987D1 (de) 2006-05-11
AU2001269304A1 (en) 2002-04-22
ATE320531T1 (de) 2006-04-15
CN1469956A (zh) 2004-01-21
WO2002031282A1 (en) 2002-04-18
GB0025243D0 (en) 2000-11-29
EP1325199A1 (de) 2003-07-09

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