WO1994024359A1 - Produits fibreux et procede de preparation de produits fibreux non inflammables - Google Patents

Produits fibreux et procede de preparation de produits fibreux non inflammables Download PDF

Info

Publication number
WO1994024359A1
WO1994024359A1 PCT/FI1994/000142 FI9400142W WO9424359A1 WO 1994024359 A1 WO1994024359 A1 WO 1994024359A1 FI 9400142 W FI9400142 W FI 9400142W WO 9424359 A1 WO9424359 A1 WO 9424359A1
Authority
WO
WIPO (PCT)
Prior art keywords
fire
retardant
base material
defibering
fibers
Prior art date
Application number
PCT/FI1994/000142
Other languages
English (en)
Inventor
Reijo Louko
Heikki Ahonen
Original Assignee
Ekovilla Oy
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 Ekovilla Oy filed Critical Ekovilla Oy
Priority to AU64312/94A priority Critical patent/AU6431294A/en
Priority to DE69405385T priority patent/DE69405385T2/de
Priority to EP94911975A priority patent/EP0694094B1/fr
Publication of WO1994024359A1 publication Critical patent/WO1994024359A1/fr

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/407Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing absorbing substances, e.g. activated carbon
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209Inorganic fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425Cellulose series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4266Natural fibres not provided for in group D04H1/425
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/34Ignifugeants

Definitions

  • the present invention relates to a method according to the preamble of claim 1 suited for manufacturing fibrous products made from organic fibers.
  • the fibrous raw material is milled together with a fire-retardant agent to a desired degree of defibering to the end of manufacturing a product of at least essential flame-retardancy.
  • the invention also concerns a method according to the preamble of claim 10 as well as an at least essentially fire-retardant organic fiber-based material according to the preambles of claims 15 and 17, respectively.
  • Such a material is comprised of organic fibers milled to a desired degree of defibering and admixed with a fire- retardant agent.
  • the material according to the invention is suited for use particularly as a thermal insulation and also as an aggregate in, e.g., road pavement materials and similar materials applied in hot form.
  • thermal insulation materials include products called, among other names, as cellulosic blow wool or Ecowool, are widely marketed and a plurality of patents related thereto are known.
  • Some of the patents also teach the sterilization of said cellulosic wool insulation material to the end of improving its resistance against decay in the insulation cavity.
  • the thermal insulation capability of materials used for thermal insulation of buildings is based on the fact that the insulation material prevents air circulation in the insulation cavity.
  • An ideal insulation material would be characterized by also to a certaing extent being capable of preventing the random movement of molecules in the air.
  • the latter category includes insulation materials termed aerogels in which the pore size is in the order of a few nanometers.
  • the insulation performance can also be improved by filling the voids in the insulation material with a gas of low thermal conductivity or such materials that provide a high reflectance to IR radiation and are inferior heat conductors.
  • the most effective thermal insulation is a vacuum complemented with a plurality of high-reflectance surfaces spaced from each other.
  • such exotic materials cannot be economi ⁇ cally used in these days for the thermal insulation of a conventional building or similar structure.
  • the thermal conductivity of air is 0.0253 /m°C, which value can be closely attained by expanded polystyrene having a plurality of reflecting surfaces and a small pore size.
  • thermal conductivities of typical cellulosic insula- tion wool, or Ecowool are approx. 0.034 - 0.036 /m°C at best.
  • thermal conductivity of, e.g., mineral wool is in the order of 0.040 /m°C, sometimes 0.038 /m°C.
  • advantageous densities are 30 - 36 kg/m 3 for cellulosic wool and 30 - 80 kg/m 3 for mineral wool.
  • the difference is related to the different values of thermal conductivity.
  • the best insulation results are obtained using a density of 40 - 60 kg/m 3 for the mineral wool.
  • thermal insulation products made from organic fibers in regard to, e.g., mineral wool insula- tion materials are their high thermal insulation capability and advantageous production costs. Owing to the possibility of using recycled paper as the raw material, the competitive edge of these products will be further improved in the future.
  • cellulosic insulation wool is made by shredding paper and milling the shreds by means of, e.g., a hammer mill and admixing the milled fibers with a fire- retardant agent to render the insulation wool noncombus- tible and nonsmouldering.
  • a fire-retardant agent used therein also act as fungicidal and antimicrobial agents that inhibit the growth of such microorganisms .
  • Typical of such agents are boron compounds, salts of phosphoric acid, antimony compounds, urea etc., that is the same agents that are conventionally used in all other applications of fire resistance improvement.
  • Concurrent processing techniques of cellulosic wool have some drawbacks. Namely, the hammer mill crushes the fibers but does not defiber them in the same manner as purpose-designed refiners. Such crushing of the fiber converts it to a form which is disadvantageous in terms of the thermal insulation function.
  • Typical fire-retardant agents such as borax or boric acid or soda or mixtures thereof are used in hydrated form to exploit their fire-retardant capability.
  • borax and other similar chemicals are preferably used as fire- retardant agents particularly in their hydrated forms as then the water of hydration is released at the lowest possible temperature thus absorbing heat and capturing oxygen from the surroundings of the fiber in a fire situation.
  • anhydrated borax or other similar chemical capable of absorbing water of hydration can later absorb the water of hydration assuming that the required water of hydration is available from, e.g., the humidity of the surrounding air.
  • the ten waters of hydration bound by hydrated borax are first released at 60.8 °C temperature when the borax is converted into pentahydrate and/or tetrahydrate, and later at 95 °C to dihydrate.
  • the dry milling step is conventionally carried out using a specific input energy of approx. 100 kWh per ton of raw material.
  • the internal temperature of the fibrous material and the temperature of entrained air and additives are elevated so much as to cause the "melting" of hydrated chemicals in their contained water of hydration, whereby plugging of all grooves in the refiner bars results.
  • the invention is based on admixing the fibrous raw material first with at least a portion of the fire- retardant agent used, after which the blended materials are ground to a desired degree of defibering by means of a mill capable of exerting the desired defibering action.
  • thermal insulation material according to the invention is characterized by what is stated in the characterizing part of claim 15.
  • the aggregate material for asphalt or similar composition according to the invention is characterized by what is stated in the characterizing part of claim 21.
  • a fibrillated fibrous product is produced by milling a suitable cellulosic or lignocellulosic raw material in the manner described below.
  • the cheapest product is achieved by defibering recycled paper, while the method is also suited for making products directly from wood or virgin pulp/paper.
  • the recycled paper can be either groundwood-containing, that is, newsprint essentially consisting of paper made from mechanical pulp, or groundwood-free paper which is printing paper essentially made from chemical pulp, or alternatively, paper containing both of these pulp types such as LWC paper principally made from mechanical pulp with chemical pulp admixed as a strength-imparting component.
  • the' recycled paper may contain fillers and pigments, or alternatively, be essentially free from these.
  • fibrous raw material All the above-listed raw material grades are termed as "fibrous raw material” in the context of the present invention.
  • the term “paper” is defined to include all grades of paper, paperboard, cardboard and board with a basis weight in the range of 50 - 500 g/m 2 typical.
  • a particularly suitable fibrous raw mate ⁇ rial is formed by paper at least essentially made from lignocellulosic (wood-containing) pulp.
  • An example of such raw material is recycled newsprint.
  • a particularly suitable fibrous raw material is coated paper containing besides pulp, also mineral fillers such as clay and/or talc.
  • This kind of paper includes, e.g., archive-proof copying papers, magazine papers, art printing papers, etc.
  • the end product contains after milling approx.
  • the fibrous raw material is ground to desired degree of defibering.
  • desired degree of defibering refers to fibrillation of the fibrous raw material in smaller particles.
  • the target size of the particles varies according to the application. Accordingly, in the first preferred embodiment of the invention mentioned above, the raw material is ground to a particle size of approx. 0.1 - 50 mm, advantageously approx. 1 - 10 mm. In the second preferred embodiment of the invention, the raw material is ground to a much smaller particle size of typically approx. 0.01 - 10 mm, advantageously approx. 0.1 * '- 5 mm.
  • suitable mills are disk or conical refiners and similar refiner types having rotary refining plates or knives.
  • the refiners are equipped with grooved or tipped bars.
  • a particularly advantageous embodiment employs for the defibering of recycled paper such grooved bars in which the grooves are approx. 5 mm deep and the ridges are 3 - 5 mm high. Milling with grooved bars can provide a product of finer degree of defibering than, e.g., tipped bars.
  • the typical bar clearance is in the order of 0.1 - 0.5 mm for defibering recycled paper.
  • disk and conical refiners can also be employed for admixing the raw material to be milled with the fire- retardant agents such as borax, boric acid, soda, urea, alkali metal salts of phosphoric acid, etc., provided that these agents are introduced in anhydrated or almost anhydrated form.
  • fire- retardant agents such as borax, boric acid, soda, urea, alkali metal salts of phosphoric acid, etc.
  • fire- retardant agents such as borax, boric acid, soda, urea, alkali metal salts of phosphoric acid, etc.
  • Particularly advantageous fire retardants are borax, soda or a mixture thereof.
  • Agents advantageously suited for use as fire retardants are salts occurring in forms including at least five waters of hydration, advantageously ten waters of hydration, as well as also in anhydrated forms or forms with a lesser amount of waters of hydration. An essential portion of said waters of hydration of said salts is released at a temperature above 30 - 120
  • Fire retardancy in this context refers to reduction of the inflammability of a material, that is, conversion of the material to a form whi ' ch is at least essentially noncombustible and nonsmouldering.
  • the fire-retardant action of agents mixed in dry form is not as effective as that of compounds containing water of hydration. Consequently, in the first embodiment of the present invention adapted for manufacturing a thermal insulation material, it has been found advantageous to introduce the fire-retardant agent in two portions : in its anhydrous form and hydrous form. Accordingly, a portion which advantageously is 1/4 - 1/2 of the fire- retardant material is introduced in anhydrous form to the fibrous base material prior to defibering, and the other portion which advantageously is 1/2 - 3/4 of the fire- retardant material is introduced in hydrous form to the fibrous base material after defibering.
  • fire-retardant agents a greater amount of the fire- retardant agent (s) is required to ensure the initial fire retardancy of the thermal insulation material.
  • a greater amount of the fire-retardant agent (s) is required to ensure the initial fire retardancy of the thermal insulation material.
  • not all of the fire-retardant agent can be admixed in anhydrous form with the fibrous material, because such a procedure makes it difficult to prevent plugging of the grooved bars.
  • anhydrous borax can be maximally admixed with the fibers prior to the milling step by only approx. 8 % of the weight of the fibrous raw material and still keep the bars clean and unplugged.
  • the upper limit for the admixed amount of anhydrous borax or similar fire-retardant agent is approx. 10 - 15 % of the weight of the fibers.
  • the raw material is advanta ⁇ geously admixed with another material, particularly such that also itself becomes milled.
  • the fire- retardant agents are complemented or augmented preferably using other anhydrous or hydrous salts to the end of fixing other materials to the raw material fibers.
  • the method of manufacturing an essentially noncombustible material from a fibrous raw material is characterized in that the raw material is milled in a refiner equipped with grooved bars to achieve defibering and that in conjunction with the milling step, the material to be milled is admixed with at least one such anhydrous, inorganic fire-retardant agent that is capable of absorbing water of hydration, whereby the amount of the fire-retardant agent introduced in the milling step is 1/4 - 1/2 of the total amount of the fire-retardant agent required.
  • at least borax and soda are used as fire-retardant agents
  • the milling equipment employed is a disk or conical refiner.
  • other anhydrous or hydrous salts are used to the end of fixing other desired materials to the fibers (for purposes described below) .
  • a portion of the fire-retardant agent can be better dispersed between the "fibers.
  • a disk or conical refiner equipped with grooved or tipped bars can be used.
  • the dry fibrous material will later become moist, that is, accumulate water of hydration, whereby the insulation material swells and undergoes mutual binding of the fibers thus providing a nonsettling insulation structure.
  • the dry, well-dispersed material which initially is anhydrous but later becomes hydrous through absorbing water of hydration, forms a good substrate also for other agents that can be easily bound to the fibers.
  • the thermal insula ⁇ tion material is advantageously complemented with activ ⁇ ated carbon, whose function is to adsorb the radon gas emanating from the ground and retain it until the radioactivity of the radon gas has decayed to an insignificant level.
  • the activated carbon is dispersed as homogeneously as possible among the base material fibers to maximize the statistical possibilities of adsorbing radon atoms.
  • the activated carbon is advantageously admixed with the fibers by approx. 1 - 20 %, advantageously 1 - 5 %, of the base material fiber weight, while the anhydrous inorganic agent capable of later accumulating water of hydration is used by 2 - 8 * % of the base material fiber weight, and both of these agents are admixed with the fibrous base material prior to the milling step.
  • the hydrous portions of the fire-retardant agents can be admixed with the material in a conventional manner.
  • the thermal insula ⁇ tion material according to the invention can also be used for insulating vertical walls by, e.g., blowing the organic fiber-based insulation material into the wall cavity.
  • Organic fiber-based products suited for use as thermal insulation were manufactured from recycled paper chiefly comprising newsprint.
  • the recycled paper was first ripped into coarse shreds, after which to the paper-based material was added anhydrous borax by 2 - 8 % of the fibrous base material weight.
  • the admixed material was defibered in a disk refiner equipped with grooved bars into a relatively coarse fluff having a particle size of approx. 1 - 5 mm. Subsequently the fluff was admixed with hydrous borax by 12 - 20 % of the fibrous base material weight.
  • a reference fluff was prepared in which all the borax was admixed in hydrous form after the milling step.

Abstract

L'invention se rapporte à des produits organiques fibreux, ainsi qu'à un procédé de fabrication de tels produits. Selon ce procédé, la matière brute fibreuse est broyée avec un agent ignifuge, jusqu'à ce qu'elle présente un niveau requis de défibrage, afin d'obtenir un produit pratiquement non inflammable. Selon cette invention, la matière brute fibreuse est mélangée à au moins une partie de la quantité d'agent ignifuge devant être utilisée, après quoi ladite matière est broyée jusqu'à présenter un niveau requis de défibrage, à l'aide d'un raffineur agissant également comme un dispositif de broyage. Ainsi, lorsqu'on fabrique un produit destiné à l'isolation thermique, une quantité représentant le quart à la moitié de l'agent ignifuge est introduite sous une forme anhydre dans la matière de base fibreuse avant le processus de défibrage, et la moitié aux trois-quarts de l'agent ignifuge est introduit sous forme hydratée dans la matière de base fibreuse après le processus de défibrage. Selon l'invention, du papier recyclé peut être utilisé pour la production d'une matière fibreuse organique et au moins essentiellement non inflammable, dans laquelle le constituant anhydre qui y est incorporé gonfle au cours de l'humidification, liant les fibres entre elles et permettant ainsi d'obtenir une structure à tassement par autocompression.
PCT/FI1994/000142 1993-04-15 1994-04-15 Produits fibreux et procede de preparation de produits fibreux non inflammables WO1994024359A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU64312/94A AU6431294A (en) 1993-04-15 1994-04-15 Fibrous products and a process for preparing flame retardant fibrous products
DE69405385T DE69405385T2 (de) 1993-04-15 1994-04-15 Faserige produkte und verfahren zur herstellung von flammhemmenden faserigen produkten
EP94911975A EP0694094B1 (fr) 1993-04-15 1994-04-15 Produits fibreux et procede de preparation de produits fibreux non inflammables

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI931721A FI95401C (fi) 1993-04-15 1993-04-15 Menetelmä ainakin oleellisesti palamattoman tuotteen valmistamiseksi kuituraaka-aineesta sekä menetelmällä valmistettu lämmöneristysmateriaali ja asfaltin lisäaine
FI931721 1993-04-15

Publications (1)

Publication Number Publication Date
WO1994024359A1 true WO1994024359A1 (fr) 1994-10-27

Family

ID=8537748

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1994/000142 WO1994024359A1 (fr) 1993-04-15 1994-04-15 Produits fibreux et procede de preparation de produits fibreux non inflammables

Country Status (6)

Country Link
EP (1) EP0694094B1 (fr)
AT (1) ATE157716T1 (fr)
AU (1) AU6431294A (fr)
DE (1) DE69405385T2 (fr)
FI (1) FI95401C (fr)
WO (1) WO1994024359A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042840A3 (fr) * 2003-11-03 2005-08-25 Spezialpappenfabrik Rosegg Bet Nouveau materiau a base de papier, carton ou carton-pate
WO2006027137A1 (fr) * 2004-09-03 2006-03-16 Wolfgang Christ Materiau plat en matiere fibreuse et son procede de production
CN105439616A (zh) * 2015-11-26 2016-03-30 北京盛强科技有限公司 防火保温板
CN106758511A (zh) * 2016-12-28 2017-05-31 国家纳米科学中心 一种保温壁纸的制备方法及得到的保温壁纸
CN106835839A (zh) * 2016-12-28 2017-06-13 国家纳米科学中心 一种保温壁纸
CN106906691A (zh) * 2017-01-19 2017-06-30 江南大学 轻质生物质材料及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336569B4 (de) * 2003-08-08 2005-07-21 Siempelkamp Handling Systeme Gmbh & Co Verfahren zum Herstellen von feuerwiderstandsfähigen Gipsfaserplatten und Vorrichtung zur Durchführung eines Verfahrens zum Herstellen von feuerwiderstandsfähigen Gipsfaserplatten
CN104805986A (zh) * 2015-04-23 2015-07-29 张家港市盛港绿色防火建材有限公司 一种表面附有pvc的集装箱防火地板及其制造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100982A (en) * 1964-03-02 1968-01-31 Wilhelmstal Papier Apparatus for the manufacture of heat insulating material
GB1321514A (en) * 1970-04-07 1973-06-27 Herr A K Purification of waste waters
GB2093875A (en) * 1981-02-23 1982-09-08 Yoshida Kogyo Kk Flame-retardant building materials and method for making same
US4374171A (en) * 1979-06-25 1983-02-15 The United States Of America As Represented By The Secretary Of Commerce Smolder and flame resistant insulation materials, composition and method
FI73704B (fi) * 1984-02-28 1987-07-31 Selluvilla Oy Utblaostbar cellulosaisoleringsmaterial som anvaends som vaermeisoleringsmedel.
EP0500999A2 (fr) * 1991-03-01 1992-09-02 Cascades Inc. Isolant organique floconeux, méthode de fabrication et d'utilisation
WO1993004239A1 (fr) * 1991-08-21 1993-03-04 National Research Council Of Canada Isolants destines au batiment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100982A (en) * 1964-03-02 1968-01-31 Wilhelmstal Papier Apparatus for the manufacture of heat insulating material
GB1321514A (en) * 1970-04-07 1973-06-27 Herr A K Purification of waste waters
US4374171A (en) * 1979-06-25 1983-02-15 The United States Of America As Represented By The Secretary Of Commerce Smolder and flame resistant insulation materials, composition and method
GB2093875A (en) * 1981-02-23 1982-09-08 Yoshida Kogyo Kk Flame-retardant building materials and method for making same
FI73704B (fi) * 1984-02-28 1987-07-31 Selluvilla Oy Utblaostbar cellulosaisoleringsmaterial som anvaends som vaermeisoleringsmedel.
EP0500999A2 (fr) * 1991-03-01 1992-09-02 Cascades Inc. Isolant organique floconeux, méthode de fabrication et d'utilisation
WO1993004239A1 (fr) * 1991-08-21 1993-03-04 National Research Council Of Canada Isolants destines au batiment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042840A3 (fr) * 2003-11-03 2005-08-25 Spezialpappenfabrik Rosegg Bet Nouveau materiau a base de papier, carton ou carton-pate
WO2006027137A1 (fr) * 2004-09-03 2006-03-16 Wolfgang Christ Materiau plat en matiere fibreuse et son procede de production
CN105439616A (zh) * 2015-11-26 2016-03-30 北京盛强科技有限公司 防火保温板
CN106758511A (zh) * 2016-12-28 2017-05-31 国家纳米科学中心 一种保温壁纸的制备方法及得到的保温壁纸
CN106835839A (zh) * 2016-12-28 2017-06-13 国家纳米科学中心 一种保温壁纸
CN106906691A (zh) * 2017-01-19 2017-06-30 江南大学 轻质生物质材料及其制备方法

Also Published As

Publication number Publication date
EP0694094B1 (fr) 1997-09-03
FI931721A0 (fi) 1993-04-15
EP0694094A1 (fr) 1996-01-31
DE69405385T2 (de) 1998-03-26
ATE157716T1 (de) 1997-09-15
FI931721A (fi) 1994-10-16
FI95401C (fi) 1996-01-25
AU6431294A (en) 1994-11-08
FI95401B (fi) 1995-10-13
DE69405385D1 (de) 1997-10-09

Similar Documents

Publication Publication Date Title
US6086998A (en) Non-inflammable fiber product
US5910367A (en) Enhanced cellulose loose-fill insulation
EP1090089B1 (fr) Revetement ignifuge intumescent pour materiaux ligno-cellulosiques
US5422170A (en) Wood based panels
CA2858116C (fr) Produits de construction composites lies par des nanofibres de cellulose
Wolfe et al. Cement-bonded wood composites as an engineering material
EP0694094B1 (fr) Produits fibreux et procede de preparation de produits fibreux non inflammables
EP0500999B1 (fr) Isolant organique floconeux, méthode de fabrication et d'utilisation
KR20080066602A (ko) 내력 벽면재 및 이의 제조방법
Cavdar et al. Microcrystalline cellulose addition effects on the properties of wood cement boards
US7858005B2 (en) Method for the production of fire-resistant wood fiber moldings
WO1993004239A1 (fr) Isolants destines au batiment
JP3109281B2 (ja) 木質ボード
EP3323576B1 (fr) Procédé de fabrication de panneaux d'isolation/nattes ignifugés base de matières premières renouvelables
CN111333402B (zh) 一种环保防火内墙材料的制备方法
JPH0647826A (ja) 建築用繊維板の製造方法
EP0146840A2 (fr) Matière isolante hybride insufflée
US1723989A (en) Insulation
JP2023548963A (ja) 断熱材料、断熱製品、層構造、建造物、及び断熱材料の製造方法
RU2096432C1 (ru) Состав для изготовления трудносгораемого теплоизоляционного материала
FI13276Y1 (fi) Eristemateriaali, eristetuote, kerrosrakenne ja rakennus
Usoltsev et al. THERMAL INSULATION BUILDING MATERIAL FROM RECYCLED PAPER AND A MINERAL BINDER
JPH11269795A (ja) 無機質繊維板およびその製造方法
KR20060125146A (ko) 재활용 섬유를 이용한 단열재 및 그 제조 방법
JPH08239921A (ja) 不燃性成形体

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR BY CA CH CN CZ DE DK ES FI GB GE HU JP KG KP KR KZ LK LU LV MD MG MN MW NL NO NZ PL PT RO RU SD SE SI SK TJ TT UA US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1994911975

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1994911975

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1994911975

Country of ref document: EP