WO1994015883A1 - Fibres solubres inorganiques salines - Google Patents

Fibres solubres inorganiques salines Download PDF

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Publication number
WO1994015883A1
WO1994015883A1 PCT/GB1994/000053 GB9400053W WO9415883A1 WO 1994015883 A1 WO1994015883 A1 WO 1994015883A1 GB 9400053 W GB9400053 W GB 9400053W WO 9415883 A1 WO9415883 A1 WO 9415883A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
fibre
amount
mgo
less
Prior art date
Application number
PCT/GB1994/000053
Other languages
English (en)
Inventor
Gary Anthony Jubb
Original Assignee
The Morgan Crucible Company Plc
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 PCT/GB1993/000085 external-priority patent/WO1993015028A1/fr
Priority claimed from GB939314236A external-priority patent/GB9314236D0/en
Priority to JP06515830A priority Critical patent/JP3126385B2/ja
Priority to GB9513093A priority patent/GB2289673B/en
Priority to DE69400154T priority patent/DE69400154T3/de
Priority to BR9406117A priority patent/BR9406117A/pt
Priority to AU58374/94A priority patent/AU686594B2/en
Priority to DK94904238T priority patent/DK0679145T4/da
Application filed by The Morgan Crucible Company Plc filed Critical The Morgan Crucible Company Plc
Priority to KR1019950702882A priority patent/KR100238348B1/ko
Priority to CA002154442A priority patent/CA2154442C/fr
Priority to EP94904238A priority patent/EP0679145B2/fr
Priority to US08/204,385 priority patent/US5811360A/en
Publication of WO1994015883A1 publication Critical patent/WO1994015883A1/fr
Priority to HK98100456A priority patent/HK1001474A1/xx
Priority to HK98100457A priority patent/HK1001475A1/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2213/00—Glass fibres or filaments
    • C03C2213/02—Biodegradable glass fibres

Definitions

  • This invention relates to saline soluble, non-metallic, amorphous, inorganic oxide, refractory fibrous materials.
  • the invention particularly relates to glassy fibres having silica as their principal constituent.
  • Inorganic fibrous materials are well known and widely used for many purposes (e.g. as thermal or acoustic insulation in bulk, mat. or blanket form, as vacuum formed shapes, as vacuum formed boards and papers, and as ropes, yarns or textiles: as a reinforcing fibre for building materials: as a constituent of brake blocks for vehicles).
  • thermal or acoustic insulation in bulk, mat. or blanket form as vacuum formed shapes, as vacuum formed boards and papers, and as ropes, yarns or textiles: as a reinforcing fibre for building materials: as a constituent of brake blocks for vehicles.
  • properties for which inorganic fibrous materials are used require resistance to heat, and often resistance to aggressive chemical environments.
  • Inorganic fibrous materials can be either glassy or crystalline. Asbestos is an inorganic fibrous material one form of which has been strongly implicated in respiratory disease.
  • European Patent Application No. 0399320 disclosed glass fibres having a high physiological solubility. Further patent specifications disclosing selection of fibres for their saline solubility are European 0412878 and 0459897. French 2662687 and 2662688- PCT WO86/04807 and WO90/02713.
  • the refractoriness of the fibres disclosed in these various prior art documents varies considerably.
  • the maximum service temperature of any of the above mentioned fibres (when used as refractory insulation) is up to 815°C ( 1500°F).
  • 815°C 1500°F
  • saline soluble commercial fibres usable at temperatures higher than 815°C are SUPER WOOLTM a fibre manufactured by The Morgan Crucible Company pic and which has a maximum use temperature of 1050°C and a composition of SiO 2 65wt%: CaO 29wt%: MgO 5wt%: Al 2 O 3 lwt%.
  • INSULFRAXTM a fibre made by Carborundum Company which has a continuous use limit of 1000°C ( 1832°F) and which melts at 1260°C (2300°F). This has a composition of SiO 2 65wt%: CaO 31.1wt%: MgO 3.2wt%: Al 2 O 3 0.3wt% and Fe 2 O 3 0.3wt%.
  • Figure 1 shows a three axis composition diagram for the constituents CaO, MgO, and ZrO 2 ; this diagram omits all other constituents so that the sum of CaO, MgO. and ZrO 2 at all points is 100%. Silica is in excess at all points as described below.
  • MgO.SiO 2 These fibres lie in region 2 of Figure 1 and in the following are referred to as excess MgO fibres.
  • SiO 2 excess indicates the amount of silica left once the above mentioned constituents (CaO, MgO, and ZrO 2 ) have crystallised.
  • the value of SiO 2 excess is calculated by subtracting from the total quantity of silica present that amount that should crystallise as silicates with the other constituents CaO, MgO, and ZrO 2 assuming all of the CaO, MgO, and ZrO 2 crystallise as the materials mentioned above. In most of the compositions studied alumina is present to some extent and so the applicants also assume that alumina crystallises as Al 2 O 3 .SiO 2 and to calculate SiO 2 excess this quantity is subtracted also. Only the above named constituents are used in calculating the SiO 2 excess as other chemical constituents are present in only small amounts. For other chemical constituents similar considerations apply. It has been found by the applicants that when the SiO 2 excess is greater than
  • the fibres tend to have a resistance to temperature of up to 1260°C
  • the present invention excludes those excess CaO compositions that have a calculated diopside to wollastonite ratio in the range 1.8 to 5.25.
  • SiO 2 excess may be that it indicates how much silica is left to maintain a glassy phase on crystallisation of the other constituents as silicate materials. Further, the silicate materials that form on devitrification may become liquid or flow at 1260°C so causing
  • the quantity of potentially fluxing constituents such as alkali metals and other incidental impurities should be kept low.
  • the present invention provides a refractory fibre for which a vacuum cast preform of the fibre has a shrinkage of 3.5% or less when exposed to 1260°C for 24 hours and comprising CaO, SiO 2 .
  • the amount of CaO is greater than the sum of the amount of MgO and twice the amount of ZrO, the calculated ratio of diopside to wollastonite does not lie in the range 1.8 to 5.25.
  • the applicants have also found that for those fibres that have a satisfactory shrinkage at 1260°C the saline solubility of the fibres produced appears to increase with increasing amount of MgO present whereas ZrO 2 and Al 2 O 3 are detrimental to solubility.
  • the invention therefore also provides preferred saline soluble fibres of the composition specified above and in which the MgO excess [defined as MgO - (ZrO 2 + Al 2 O 3 )] is greater than 10mol%.
  • the MgO excess is greater than 11.2mol% such fibres tending to have extremely high solubility of about 100ppm or more.
  • the MgO excess is greater than l5.25mol%: all of the fibres measured having an MgO excess greater than 15.25mol% had solubilities in excess of 100ppm.
  • the invention also provides a saline soluble fibre characterised in that a vacuum cast preform of the fibre has a shrinkage of 3.5% or less when exposed to 1260°C for 24 hours.
  • Tables 2 & 3 show the results of these tests.
  • Table 2 indicates for each the linear shrinkages at 800, 1000, 1200, and 1260°C (not all samples measured at every temperature); weight percent composition: mole percent composition ( based on the constituents CaO, MgO, SiO 2 Al 2 O 3 , ZrO 2 , and TiO 2 ); SiO 2 excess ( as defined above ) and. for the CaO excess fibres, the calculated diopside to wollastonite ratio.
  • Table 3 indicates for each the weight percent composition: mole percent composition (based on the constituents CaO, MgO, SiO 2 Al 2 O 3 , ZrO 2 , and TiO 2 ): solubilities of various constituents: and MgO excess (as defined above )
  • mole percent composition based on the constituents CaO, MgO, SiO 2 Al 2 O 3 , ZrO 2 , and TiO 2 ): solubilities of various constituents: and MgO excess (as defined above )
  • Each sample that has a satisfactory shrinkage of 3.5% or less at 1260°C is indicated by a composition shown in bold. Those compositions that fail to meet the shrinkage criterion are indicated in italics. Other compositions are shown falling within the described ranges but for which the high temperature shrinkage was not measured; these compositions are indicated in plain text.
  • Tliose compositions where a fibre could not be made or where the fibre was of too poor a quality for the solubility to be measured are indicated with X's.
  • the fibres above and including line A all have a SiO 2 excess of less than 21.8mol% and all (where measured) fail the shrinkage criterion that a vacuum cast preform of the fibre has a shrinkage of less than 3.5% when exposed to 1260°C for 24 hours.
  • the fibres above and including line B and below line A all have a TiO 2 content of greater than 1.25mol% and all fail the shrinkage criterion.
  • the fibres above and including line C and below line B all have a Al 2 O 3 content of greater than 0.75mol% and all fail the shrinkage criterion.
  • the fibres below line C are grouped according to their relative amounts of CaO, MgO, and ZrO 2 (i.e. as to their positions in Figure 1)
  • the fibres above and including line D and below line C are the excess MgO fibres (region 2 of Figure 1) and are sorted on SiO 2 excess.
  • the fibres above and including line E and below line D are the excess ZrO 2 fibres (region 3 of Figure 1 ) and are sorted on SiO 2 excess.
  • the fibres below line E are the excess CaO fibres and are sorted on the diopside to wollastonite ratio.
  • the fibres above and including line F and below line E are excess CaO fibre for which the diopside to wollastonite ratio is greater than 5.25.
  • the fibres above and including line G and below line F are excess CaO fibre for which the diopside to wollastonite ratio is less than 5.25 but greater than 1.8.
  • the fibres below line G are excess CaO fibre for which the diopside to wollastonite ratio is less than 1.8.
  • B7D. BZ-440C, B7C. and BZ-4150C all contain relatively high levels of Fe 2 O 3 ( 1.1 wt% for B7D and 0.6wt% for the others).
  • D3 and D8 contain relatively high levels (0.71mol% and 0.74 mol%) of TiO 2 and it may be that this, in combination with other impurities, has led to failure. It should be noted that D9 has 0.65mol% TiO 2 and has a satisfactory shrinkage.
  • B7A, BZ-4150A. and BZ-560B have varying amounts of Na 2 O present (0.3-1.0wt%) and this may contribute to their failure.
  • BZ-4150B has a Al 2 O 3 content of 0.64mol% and fails the shrinkage criterion. This should be contrasted with BZ-4150 which has a similar
  • D3 only just fails with a shrinkage of 3.8% and B 19 only has a shrinkage of 3.6% at 1260°C and both may in fact be errors in measurement.
  • BZ-429 and BZ-430 pass the shrinkage criteria at 1260°C (where tested). These results may indicate that the incidental impurities (shown as “Others” in Table 2) are having an effect as BZ-429 and BZ-430 show high levels of impiuities ( 1.1 and 0.9 wt% respectively) that on analysis included 0.4 and 0.3 wt% respectively of Na,0. BZ-430 only just failed the shrinkage criterion (3.7% shrinkage) and this may be due to error in measurement.
  • BZ-421, B13, BZ-422, BZ-417, and BZ-416 also fail and although initial indicators were that this had something to do with the level of CaO this now appears to be incorrect.
  • the failure to meet the shrinkage criterion may be due to the presence of fluxing constituents or otherwise.
  • a possible reason for failure of BZ-29 and BZ-421 may be their high Al 2 O 3 content (0.55 and 0.51 mol% respectively) acting alone or in combination with impurities.
  • Table 3 shows the solubilities of the fibres shown in Table 2 but ranked on MgO excess. Although by no means exact it can be seen that there is a trend in total solubility that closely follows MgO excess.
  • Fibres BZ-400, BZ-440, BZ-48, and BZ-54 were tested to 1350°C and all failed having shrinkages in excess of 20%.
  • Fibres BZ-400, BZ-36, BZ-46, and BZ-61 were tested to 1300°C and had shrinkages, respectively, of 6.2%. 17.9%. 19.6%, and 3.1%.
  • BZ-61 is in the excess MgO region and the applicants surmise (since 2CaO.ZrO 2 .4SiO 2 is not formed in this region) that it is this constituent that causes failure at 1300°C.
  • experimental furnace running at a nominal 1260°C temperatures can easily range from 1250°C to 1270°C both physically (from front to back or centre to wall of furnace) and in time (as the furnace controller supplies or stops current to the furnace).
  • a 20°C temperature difference could easily move a sample from a temperature at which it passes to one at which it fails the 3.5% shrinkage criterion. As mentioned above this may explain the shrinkages of just over 3.5% found for compositions B19, D3, BZ-430, BZ-418 and BZ-29.
  • the applicants have looked to the various incidental impurities that can occur in inorganic oxide refractory fibres (e.g. alkah oxides and iron oxide) and have found that the impurity levels that can be tolerated vary according to the proportions of the main constituents of the fibre. Fibres containing high levels of ZrO 2 for example can tolerate higher levels of Na 2 O or Fe 2 O 3 than fibres with low levels of ZrO 2 . Accordingly the applicants propose a maximum level of incidental impurities of 2mol%. the maximum level that will be tolerable will however vary as mentioned above.
  • inorganic oxide refractory fibres e.g. alkah oxides and iron oxide
  • Solubility was measured by the following method.
  • the fibre was first chopped - 2.5 g of fibre (deshotted by hand) was liquidised with 250 cm 3 of distilled water in a domestic Moulinex (Trade Mark) food blender for 20 seconds. The suspension was then transferred to a 500 cm 3 plastic beaker and allowed to settle after which as much liquid as possible was decanted and the remaining liquid removed by drying in an oven at 110°C.
  • the solubility test apparatus comprised a shaking incubator water bath, and the test solution had the following composition:-
  • the centrifuge tube was removed and centrifuged at 4500 revs/minute for approximately 5 minutes.
  • Supernatant liquid was then drawn off using a syringe and hypodermic needle.
  • the needle was then removed from the syringe, air expelled from the syringe, and the liquid passed through a filter (0.45 micron cellulose nitrate membrane filter paper [WCN type from Whatman Labsales Limited]) into a clean plastic bottle.
  • the liquid was then analysed by atomic absorption using a Thermo Jarrell Ash Smith - Hiefje II machine.
  • SiO 2 can be determined without dilution up to 250 ppm concentration ( 1 ppm 1 mg/ Litre). Above tms concentration an appropriate dilution was made volumetrically. A 0.1 % KCl solution (0.1 g in 100 cm 3 ) was added to the final dilution to prevent ionic interference. NB If glass apparatus is used, prompt analysis is necessary.
  • Aluminium may be measured directly from the sample without dilution. Standards of 1.0, 5.0 and 10.0 ppm Al may be used. For calibration readings are multiplied by 1.8895 to convert from Al to Al 2 O 3 .
  • a standard Al atomic absorption solution (e.g. BDH 1000 ppm Al) was bought and diluted using an accurate pipette to the desired concentration. 0.1% KCl was added to prevent ionic interference.
  • Calcium may require dilutions on the sample before determination can be carried out (i.e. x 10 and x 20 dilutions). Dilutions must contain 0.1% KCl.
  • a standard Ca atomic abso ⁇ tion solution (e.g. BDH 1000 ppm Ca) was diluted with distilled water and an accurate pipette to give standards of 0.5, 4.0 and 10.0 ppm. 0.1% KCl is added to prevent ionic interference. To convert readings obtained from Ca to CaO a factor of 1.4 was used.
  • Magnesium may require dilutions on the sample before determinations can be made (i.e. x 10 and x 20). A ⁇ d 0.1 % KCl to each dilution. To convert Mg to MgO multiply by 1.658.
  • a standard Mg atomic abso ⁇ tion solution (e.g. BDH 1000 ppm Mg) was diluted with distilled water and an accurate pipette to give standards of 0.5. 1.0 and 10.0 ppm Mg. 0.1% KCl was added to prevent ionic interference.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Fibers (AREA)

Abstract

On décrit une fibre soluble saline hautement refractaire. Une préforme coulée sous vide de la fibre présente un rétrécissement de 3,5 % ou moins lorsqu'elle est exposée à 1260 °C pendant vingt-quatre heures. La fibre peut comprendre CaO, SiO2, MgO, éventuellement ZrO2, éventuellement moins de 0,75 % mol d'Al2O3, toute impureté incidentelle totalisant moins de 2 % mol, et dans lequel l'excès en SiO2 (définit comme la quantité de SiO2 calculée comme restant une fois que les constituants décrits ci-dessus ont été cristallisés sous forme de silicates) dépasse 21,8 % mol; à condition que, si la quantité de CaO est supérieure à la somme de la quantité de MgO et deux fois la quantité de ZrO2, le rapport calculé de diopside au wollastonite ne se situe pas dans la plage de 1,8 à 5,25. Ces fibres peuvent être utilisées à des hautes températures lorsque des capacités refractaires sont requises et leur solubilité dans une solution saline peut rendre les fibres moins nocives que les fibres non solubles.
PCT/GB1994/000053 1993-01-15 1994-01-12 Fibres solubres inorganiques salines WO1994015883A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP94904238A EP0679145B2 (fr) 1993-01-15 1994-01-12 Fibres solubres inorganiques salines
US08/204,385 US5811360A (en) 1993-01-15 1994-01-12 Saline soluble inorganic fibres
KR1019950702882A KR100238348B1 (ko) 1993-01-15 1994-01-12 염류용해성 무기섬유
DE69400154T DE69400154T3 (de) 1993-01-15 1994-01-12 In salzlösung lösliche anorganische fasern
BR9406117A BR9406117A (pt) 1993-01-15 1994-01-12 Fibras inorgânicas soluveis em soro fisiológico
AU58374/94A AU686594B2 (en) 1993-01-15 1994-01-12 Saline soluble inorganic fibres
DK94904238T DK0679145T4 (da) 1993-01-15 1994-01-12 Saltvandsopløselige uorganiske fibre
JP06515830A JP3126385B2 (ja) 1993-01-15 1994-01-12 生理食塩水に溶解する無機繊維
GB9513093A GB2289673B (en) 1993-01-15 1994-01-12 Saline soluble inorganic fibres
CA002154442A CA2154442C (fr) 1993-01-15 1994-01-12 Fibres minerales solubles dans des solutions salines
HK98100457A HK1001475A1 (en) 1993-01-15 1998-01-20 Saline soluble inorganic fibres
HK98100456A HK1001474A1 (en) 1993-01-15 1998-01-20 Saline soluble inorganic fibres

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US3908693A 1993-01-15 1993-01-15
MX930200 1993-01-15
PCT/GB1993/000085 WO1993015028A1 (fr) 1992-01-17 1993-01-15 Fibres inorganiques, solubles en solution saline
MX9300200A MX9300200A (es) 1992-01-17 1993-01-15 Fibra inorganica vitrea soluble en solucion salina.
GBPCT/GB93/00085 1993-01-15
GB939314236A GB9314236D0 (en) 1993-01-15 1993-07-09 Saline soluble inorganic fibres
GB9314236.2 1993-07-09

Publications (1)

Publication Number Publication Date
WO1994015883A1 true WO1994015883A1 (fr) 1994-07-21

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PCT/GB1994/000053 WO1994015883A1 (fr) 1993-01-15 1994-01-12 Fibres solubres inorganiques salines

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WO (1) WO1994015883A1 (fr)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874375A (en) * 1995-10-30 1999-02-23 Unifrax Corporation High temperature resistant glass fiber
US6025288A (en) * 1996-10-29 2000-02-15 Unifrax Corporation High temperature resistant glass fiber
US6030910A (en) * 1995-10-30 2000-02-29 Unifrax Corporation High temperature resistant glass fiber
WO2000015573A1 (fr) * 1998-09-15 2000-03-23 The Morgan Crucible Company Plc Mastiques refractaires
WO2000015574A1 (fr) * 1998-09-15 2000-03-23 The Morgan Crucible Company Plc Materiaux fibreux lies
GB2348640A (en) * 1999-09-10 2000-10-11 Morgan Crucible Co Saline soluble fibres
WO2000077450A1 (fr) 1999-06-11 2000-12-21 The Morgan Crucible Company Plc Radiateurs a combustion superficielle et panneaux radiants associes
WO2001019744A1 (fr) * 1999-09-10 2001-03-22 The Morgan Crucible Company Plc Fibres salines solubles resistant a une temperature eleve
WO2001023315A1 (fr) 1999-09-27 2001-04-05 The Morgan Crucible Company Plc Procedes de formation de fibres anorganiques
WO2003059835A1 (fr) 2002-01-04 2003-07-24 The Morgan Crucible Company Plc Fibres inorganiques solubles salines
EP1323687A3 (fr) * 2001-12-29 2003-12-10 Kumkang Korea Chemical Co., Ltd. Compositiond une ceramique biosoluble ayant une solubilité améliorée dans une solution saline physiologique pour un materiau d isolation thermique à haute temperature
EP1463776A1 (fr) 2002-01-10 2004-10-06 Unifrax Corporation Fibre inorganique vitreuse resistant aux temperatures elevees
EP1648837A1 (fr) 2003-06-27 2006-04-26 Unifrax Corporation Fibre inorganique vitreuse resistant aux temperatures elevees
WO2008065363A1 (fr) 2006-11-28 2008-06-05 The Morgan Crucible Company Plc Compositions de fibres inorganiques
US7468337B2 (en) 2003-06-27 2008-12-23 Unifrax I Llc High temperature resistant vitreous inorganic fiber
EP2213634A1 (fr) 2007-11-23 2010-08-04 The Morgan Crucible Company Plc Compositions de fibres inorganiques
EP2327667A1 (fr) 2009-11-27 2011-06-01 KCC Corporation Composition de fibre de verre soluble saline
US8105675B2 (en) 2006-03-17 2012-01-31 Ngk Insulators, Ltd. Honeycomb structure and bonding material to be used for same
US8163377B2 (en) 2005-11-10 2012-04-24 The Morgan Crucible Company Plc High temperature resistant fibres
EP2360131A3 (fr) * 2010-02-24 2012-09-26 Kcc Corporation Une composition pour la production de fibres céramiques et les fibres céramiques biosoluble préparés de cette composition pour un matériau thermo-isolant aux températures hautes.
CN103459685A (zh) * 2011-03-30 2013-12-18 霓佳斯株式会社 湿润压火料
US8652980B2 (en) 2010-11-16 2014-02-18 Unifax I LLC Inorganic fiber
US8940134B2 (en) * 2011-04-05 2015-01-27 Nichias Corporation Paper comprising heat treated bio-soluble inorganic fibers, and method and equipment for making same
US9556063B2 (en) 2014-07-17 2017-01-31 Unifrax I Llc Inorganic fiber with improved shrinkage and strength
US9567256B2 (en) 2013-03-15 2017-02-14 Unifrax I Llc Inorganic fiber
US9708214B2 (en) 2014-07-16 2017-07-18 Unifrax I Llc Inorganic fiber with improved shrinkage and strength
US9919957B2 (en) 2016-01-19 2018-03-20 Unifrax I Llc Inorganic fiber
US10023491B2 (en) 2014-07-16 2018-07-17 Unifrax I Llc Inorganic fiber
US10882779B2 (en) 2018-05-25 2021-01-05 Unifrax I Llc Inorganic fiber
US11203551B2 (en) 2017-10-10 2021-12-21 Unifrax I Llc Low biopersistence inorganic fiber free of crystalline silica
DE102021211747A1 (de) 2020-10-23 2022-04-28 Thermal Ceramics Uk Limited Wärmeisolierung

Citations (4)

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WO1987005007A1 (fr) * 1986-02-20 1987-08-27 Manville Corporation COMPOSITION DE FIBRES INORGANIQUES CONSISTANT ESSENTIELLEMENT EN Al2O3, MgO, CaO et SiO2
WO1989012032A2 (fr) * 1988-06-01 1989-12-14 Manville Sales Corporation Procede pour decomposer une fibre inorganique
WO1992009536A1 (fr) * 1990-11-23 1992-06-11 Paroc Oy Ab Composition a fibres minerales
WO1993015028A1 (fr) * 1992-01-17 1993-08-05 The Morgan Crucible Company Plc Fibres inorganiques, solubles en solution saline

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
WO1987005007A1 (fr) * 1986-02-20 1987-08-27 Manville Corporation COMPOSITION DE FIBRES INORGANIQUES CONSISTANT ESSENTIELLEMENT EN Al2O3, MgO, CaO et SiO2
WO1989012032A2 (fr) * 1988-06-01 1989-12-14 Manville Sales Corporation Procede pour decomposer une fibre inorganique
WO1992009536A1 (fr) * 1990-11-23 1992-06-11 Paroc Oy Ab Composition a fibres minerales
WO1993015028A1 (fr) * 1992-01-17 1993-08-05 The Morgan Crucible Company Plc Fibres inorganiques, solubles en solution saline

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874375A (en) * 1995-10-30 1999-02-23 Unifrax Corporation High temperature resistant glass fiber
US6030910A (en) * 1995-10-30 2000-02-29 Unifrax Corporation High temperature resistant glass fiber
EP0804391A4 (fr) * 1995-10-30 2000-03-29 Unifrax Corp Fibre de verre resistant aux hautes temperatures
US6025288A (en) * 1996-10-29 2000-02-15 Unifrax Corporation High temperature resistant glass fiber
WO2000015573A1 (fr) * 1998-09-15 2000-03-23 The Morgan Crucible Company Plc Mastiques refractaires
WO2000015574A1 (fr) * 1998-09-15 2000-03-23 The Morgan Crucible Company Plc Materiaux fibreux lies
WO2000077450A1 (fr) 1999-06-11 2000-12-21 The Morgan Crucible Company Plc Radiateurs a combustion superficielle et panneaux radiants associes
GB2348640A (en) * 1999-09-10 2000-10-11 Morgan Crucible Co Saline soluble fibres
GB2348640B (en) * 1999-09-10 2001-02-21 Morgan Crucible Co High temperature resistant saline soluble fibres
WO2001019744A1 (fr) * 1999-09-10 2001-03-22 The Morgan Crucible Company Plc Fibres salines solubles resistant a une temperature eleve
WO2001023315A1 (fr) 1999-09-27 2001-04-05 The Morgan Crucible Company Plc Procedes de formation de fibres anorganiques
EP1323687A3 (fr) * 2001-12-29 2003-12-10 Kumkang Korea Chemical Co., Ltd. Compositiond une ceramique biosoluble ayant une solubilité améliorée dans une solution saline physiologique pour un materiau d isolation thermique à haute temperature
AU2002324024B2 (en) * 2001-12-29 2004-10-07 Kumkang Korea Chemical Co., Ltd. Biosoluble ceramic fiber composition with improved solubility in a physiological saline solution for a high temperature insulation material
AU2002324024C1 (en) * 2001-12-29 2006-08-17 Kumkang Korea Chemical Co., Ltd. Biosoluble ceramic fiber composition with improved solubility in a physiological saline solution for a high temperature insulation material
AU2002324024C9 (en) * 2001-12-29 2007-10-25 Kumkang Korea Chemical Co., Ltd. Biosoluble ceramic fiber composition with improved solubility in a physiological saline solution for a high temperature insulation material
WO2003059835A1 (fr) 2002-01-04 2003-07-24 The Morgan Crucible Company Plc Fibres inorganiques solubles salines
EP1544177A2 (fr) * 2002-01-04 2005-06-22 The Morgan Crucible Company Plc Fibres inorganiques solubles en solution saline
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