WO1994029375A1 - Produits resistant au feu - Google Patents

Produits resistant au feu Download PDF

Info

Publication number
WO1994029375A1
WO1994029375A1 PCT/GB1994/001239 GB9401239W WO9429375A1 WO 1994029375 A1 WO1994029375 A1 WO 1994029375A1 GB 9401239 W GB9401239 W GB 9401239W WO 9429375 A1 WO9429375 A1 WO 9429375A1
Authority
WO
WIPO (PCT)
Prior art keywords
foam
exfoliating
fibres
resin
powdered
Prior art date
Application number
PCT/GB1994/001239
Other languages
English (en)
Inventor
Derek Ward
Original Assignee
Environmental Seals Limited
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 GB939312349A external-priority patent/GB9312349D0/en
Application filed by Environmental Seals Limited filed Critical Environmental Seals Limited
Priority to AU68542/94A priority Critical patent/AU6854294A/en
Publication of WO1994029375A1 publication Critical patent/WO1994029375A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0085—Use of fibrous compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Definitions

  • This invention relates to fire resistant products and more especially to fire resistant products produced from expanded polymeric foam materials.
  • Expanded polyurethane rigid foams are presently employed for insulation purposes and are produced by mixing together measured quantities of diphenylmethane di- isocyanate and resin in liquid form and then pouring the mixed liquids into a mould or other confined space in which they expand and solidify completely to fill the mould or space.
  • the solidified rigid foam is used inter alia to provide enhanced thermal insulation or water proofing properties.
  • the present invention sets out to provide an expanded polymeric foam material which is itself resistant to heat and fire.
  • an expanded polymeric foam material which comprises a mix of a foam forming agent, a resin, fibrous material and an exfoliating material.
  • the foam-forming agent may comprise an organic isocyanate, more especially diphenylmethane di-isocyanate.
  • the exfoliating material may comprise powdered exfoliating graphite and/or powdered sodium silicate.
  • the fibrous material may comprise man- made mineral fibres (M F) and/or inorganic fibres.
  • the inorganic fibres may comprise ceramic fibres such as alumina silicate fibre and the man-made mineral fibre may comprise rockwool fibre or glass fibre.
  • a method of producing an expandable polymeric foam material which comprises the steps of mixing together a foam forming reagent, a quantity of fibrous material and resin and adding to the liquid mix a quantity of powdered exfoliating agent.
  • the resulting mix may be poured into a mould, confined space or the like or applied to the surface of a wall, ceiling, panel, tile or the like before the foam rises and solidifies.
  • the invention provides for mixing together to form a polymeric foam material, discrete quantities of a foam forming reagent, a resin and powdered exfoliating material and a fibrous material.
  • a fire resistant polymeric foam material in accordance with the invention is given by way of example only.
  • the material in question is a fire resistant expanded polyurethane foam material.
  • a foam-forming reagent which has at 20°C a viscosity of 350 mPa.s and a specific of gravity of 1.24.
  • the mix rate of foam forming reagent (FFR) to liquid resin is 50% FFR to 50% resin by weight.
  • the free core density of the rigid foam is typically between 30 and 35 Kg 3 and the cream and rise times of the foam are typically between 40 and 50 seconds and between 180 and 220 seconds respectively.
  • the resin has at 20 ⁇ C a viscosity of 295 mPa.s and a specific gravity of 1.20.
  • the resin is preferably a fully formulated liquid mixture and may comprise a resin such as used by the company Baxenden Chemicals Limited in their ISOFOAM RM118 rigid foam system.
  • the FFR is preferably diphenylmethane di-isocyanate which may comprise a crude MDI such as used by the company Baxenden Chemicals Limited in their ISOFOAM RM118 rigid foam system.
  • the amount of exfoliating agent and/or man-made mineral fibres added to the liquid FFR and resin will depend upon the degree of fire proofing required.
  • the content of these materials may, in total, represent between 1% and 90% of the mix of the materials of and the liquid FFR and resin.
  • these additions will be between 5% and 80% by weight. Preferred ranges of such additions are 10% and 60% and 15% and 40%.
  • a typical addition is 25% .
  • Rigid foams produced in accordance with the invention have many applications these including inter alia filling spaces between for example cable conduits and an adjoining wall surface or internal walls of a house, and as a coating for wall and ceiling panels.
  • the sodium silicate content of the rigid foam prevents burning through of the rigid foam and the exfoliating content causes the foam to expand to present a barrier to the fire and to prevent its spread to other areas.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Building Environments (AREA)
  • Fireproofing Substances (AREA)

Abstract

On décrit un matériau en mousse de polymère expansée comprenant un mélange d'agent de formation de mousse, une résine, un matériau fibreux et un matériau exfoliant. L'agent de formation de mousse peut comprendre un isocyanate organique, plus précisément un di-isocyanate diphénylméthane. Le matériau exfoliant peut comprendre du graphite exfoliant en poudre et/ou du silicate de sodium en poudre. Le matériau fibreux peut comprendre des fibres minérales synthétiques et/ou des fibres inorganiques.
PCT/GB1994/001239 1993-06-16 1994-06-08 Produits resistant au feu WO1994029375A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU68542/94A AU6854294A (en) 1993-06-16 1994-06-08 Fire resistant products

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9312349.5 1993-06-16
GB939312349A GB9312349D0 (en) 1993-06-16 1993-06-16 Fire resistant polyurethane based products
GB939321298A GB9321298D0 (en) 1993-06-16 1993-10-15 Fire resistant products
GB9321298.3 1993-10-15

Publications (1)

Publication Number Publication Date
WO1994029375A1 true WO1994029375A1 (fr) 1994-12-22

Family

ID=26303077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/001239 WO1994029375A1 (fr) 1993-06-16 1994-06-08 Produits resistant au feu

Country Status (2)

Country Link
AU (1) AU6854294A (fr)
WO (1) WO1994029375A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013024176A1 (fr) 2011-08-18 2013-02-21 Rockwool International A/S Composition moussable, composite de mousse, procédé de fabrication d'un composite de mousse et utilisation du composite de mousse
WO2014125367A1 (fr) * 2013-02-18 2014-08-21 Rockwool International A/S Composition moussage, composite de mousse polymère et procédé de fabrication du composite de mousse polymère

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168706A (en) * 1984-12-20 1986-06-25 Dunlop Ltd Flexible flame-retardant polyurethane foams
EP0358950A2 (fr) * 1988-08-23 1990-03-21 Bayer Ag Procédé pour préparer des mousses de polyuréthane
GB2226033A (en) * 1988-12-16 1990-06-20 T & N Technology Ltd Flame resistant materials
WO1991011498A1 (fr) * 1990-02-01 1991-08-08 High-Point Rendel Projects Limited Compositions intumescentes de protection contre le feu
EP0508751A2 (fr) * 1991-04-09 1992-10-14 Environmental Seals Limited Dispositifs d'étanchéité gonflants coupe-feu, ainsi que leur procédé de production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168706A (en) * 1984-12-20 1986-06-25 Dunlop Ltd Flexible flame-retardant polyurethane foams
EP0358950A2 (fr) * 1988-08-23 1990-03-21 Bayer Ag Procédé pour préparer des mousses de polyuréthane
GB2226033A (en) * 1988-12-16 1990-06-20 T & N Technology Ltd Flame resistant materials
WO1991011498A1 (fr) * 1990-02-01 1991-08-08 High-Point Rendel Projects Limited Compositions intumescentes de protection contre le feu
EP0508751A2 (fr) * 1991-04-09 1992-10-14 Environmental Seals Limited Dispositifs d'étanchéité gonflants coupe-feu, ainsi que leur procédé de production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013024176A1 (fr) 2011-08-18 2013-02-21 Rockwool International A/S Composition moussable, composite de mousse, procédé de fabrication d'un composite de mousse et utilisation du composite de mousse
WO2014125367A1 (fr) * 2013-02-18 2014-08-21 Rockwool International A/S Composition moussage, composite de mousse polymère et procédé de fabrication du composite de mousse polymère

Also Published As

Publication number Publication date
AU6854294A (en) 1995-01-03

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