EP0244964B1 - Fabrication d'une feuille flexible intumescente - Google Patents

Fabrication d'une feuille flexible intumescente Download PDF

Info

Publication number
EP0244964B1
EP0244964B1 EP87303189A EP87303189A EP0244964B1 EP 0244964 B1 EP0244964 B1 EP 0244964B1 EP 87303189 A EP87303189 A EP 87303189A EP 87303189 A EP87303189 A EP 87303189A EP 0244964 B1 EP0244964 B1 EP 0244964B1
Authority
EP
European Patent Office
Prior art keywords
sheet
manufacture
flexible intumescent
fibrous material
intumescent sheet
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
EP87303189A
Other languages
German (de)
English (en)
Other versions
EP0244964A1 (fr
Inventor
Alasdair Ian Stevenson
John Dinsdale Crabtree
Brian Hargreaves
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.)
T&N Materials Research Ltd
Original Assignee
T&N Materials Research 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 T&N Materials Research Ltd filed Critical T&N Materials Research Ltd
Priority to AT87303189T priority Critical patent/ATE62282T1/de
Publication of EP0244964A1 publication Critical patent/EP0244964A1/fr
Application granted granted Critical
Publication of EP0244964B1 publication Critical patent/EP0244964B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2857—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
    • D21F13/04—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production on cylinder board machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/44—Flakes, e.g. mica, vermiculite

Definitions

  • This invention relates to the manufacture of flexible intumescent sheet.
  • intumescent sheet comprising heat-expandable micaceous mineral, such as vermiculite; inorganic fibrous material, for example refractory aluminosilicate fibres, rockwool or glass fibres; and organic binder, such as natural rubber, styrene-butadiene rubber, butadiene-acrylonitrile rubber, or other elastomeric material.
  • the sheet is suitable for use as a mounting for ceramic catalyst-supports in metal containers, particularly in automobile exhaust systems.
  • the sheet is of dry bulk density at least 0.5 gm/ml and is typically of thickness 2.5 mm.
  • aqueous suspension of vermiculite ore 70 parts by weight
  • aluminosilicate fibres sold under the name FIBERFRAX (20 parts by weight)
  • styrene-butadiene latex sold under the name HYCAR (equivalent to 10 parts by weight solids)
  • FIBERFRAX aluminosilicate fibres sold under the name FIBERFRAX
  • HYCAR styrene-butadiene latex
  • the slurry is distributed from the head box over the width of the water-permeable conveyor felt of the machine and is progressively de-watered as it travels on the felt. From the felt, the de-watered layer is passed to the drum (or ′making roll′) of the machine, on which it is wound until a thickness of 5 mm has been built up.
  • the hollow laminar cylinder formed is then slit axially, and the sheet thus released is laid flat and dried to moisture content of about 2% by weight.
  • operation of the drum can be continued until a thickness of 10 mm or more has been built up.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Catalysts (AREA)
  • Bedding Items (AREA)
  • Building Environments (AREA)
  • Making Paper Articles (AREA)
  • Materials For Medical Uses (AREA)

Claims (2)

1. Procédé pour la fabrication d'une feuille flexible intumescente pour utilisation en tant que châssis pour des porte-catalyseurs en céramique dans les systèmes d'échappement d'automobiles, en déshydratant une couche de suspension aqueuse comprenant un minerai de vermiculite dilatable à la chaleur, une matière fibreuse inorganique, et un liant inorganique, puis en séchant la couche déshydratée en une feuille de densité globale à sec d'au moins 5 g/ml, caractérisé par l'enroulement de la couche déshydratée sur un tambour afin d'obtenir un produit laminaire d'une épaisseur supérieure à 2,5 mm, et en séchant le produit laminaire.
2. Procédé selon la revendication 1, dans lequel la matière fibreuse inorganique consiste en des fibres d'aluminosilicate.
EP87303189A 1986-05-09 1987-04-13 Fabrication d'une feuille flexible intumescente Expired - Lifetime EP0244964B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87303189T ATE62282T1 (de) 1986-05-09 1987-04-13 Herstellung einer biegsamen aufblaehbaren pappe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868611317A GB8611317D0 (en) 1986-05-09 1986-05-09 Flexible intumescent sheet
GB8611317 1986-05-09

Publications (2)

Publication Number Publication Date
EP0244964A1 EP0244964A1 (fr) 1987-11-11
EP0244964B1 true EP0244964B1 (fr) 1991-04-03

Family

ID=10597569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87303189A Expired - Lifetime EP0244964B1 (fr) 1986-05-09 1987-04-13 Fabrication d'une feuille flexible intumescente

Country Status (6)

Country Link
EP (1) EP0244964B1 (fr)
JP (1) JPS62268899A (fr)
AT (1) ATE62282T1 (fr)
DE (1) DE3769005D1 (fr)
ES (1) ES2021707B3 (fr)
GB (2) GB8611317D0 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576708A (en) * 1968-02-21 1971-04-27 Nicolet Ind Inc Asbestos materials of high dielectric strength and method of making same
US3954555A (en) * 1972-09-29 1976-05-04 National Gypsum Company Fiber reinforced plastic articles and method of preparation
US3954556A (en) * 1974-06-10 1976-05-04 Johns-Manville Corporation Inorganic composition for high temperature use and method of forming a millboard therefrom
CA1042587A (fr) * 1974-11-04 1978-11-14 Minnesota Mining And Manufacturing Company Materiau intumescent en feuilles
FR2396832A1 (fr) * 1977-07-08 1979-02-02 Redco Sa Composition de materiau a base de fibres minerales

Also Published As

Publication number Publication date
EP0244964A1 (fr) 1987-11-11
JPS62268899A (ja) 1987-11-21
GB8708826D0 (en) 1987-05-20
ATE62282T1 (de) 1991-04-15
ES2021707B3 (es) 1991-11-16
GB8611317D0 (en) 1986-06-18
GB2190110A (en) 1987-11-11
GB2190110B (en) 1989-12-06
DE3769005D1 (de) 1991-05-08

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