WO2001019744A1 - High temperature resistant saline soluble fibres - Google Patents
High temperature resistant saline soluble fibres Download PDFInfo
- Publication number
- WO2001019744A1 WO2001019744A1 PCT/GB2000/003275 GB0003275W WO0119744A1 WO 2001019744 A1 WO2001019744 A1 WO 2001019744A1 GB 0003275 W GB0003275 W GB 0003275W WO 0119744 A1 WO0119744 A1 WO 0119744A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fibres
- fibre
- cao
- mgo
- sio
- Prior art date
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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 high temperature resistant saline soluble fibres and particularly relates to calcium-magnesium-silicate fibres.
- Calcium-magnesium-silicate fibres are known for example from WO89/12032, WO93/15028 and WO94/15883.
- WO89/12032 first disclosed a broad class of fire-resistant saline soluble fibres.
- WO93/15028 showed that a class of the fibres of WO89/12032 were usable at temperatures up to 1000°C or more.
- WO94/15883 showed that some of the fibres of WO93/15028 had higher use temperatures still, of up to 1260°C or more, and indicated that such fibres needed a SiO 2 excess (defined as the amount of SiO 2 remaining after crystallisation of CaO, MgO and any ZrO 2 as silicates) of greater than 21.8mol%.
- WO97/16386 while falling in the general class of calcium-magnesium-silicate fibres looked to low calcium fibres to show use temperatures of 1260°C or more.
- the present invention provides a fibre having a maximum use temperature of 1200°C or more in which the amount of MgO in mol% is greater than the amount of CaO in mol % and which comprises :-
- the excess SiO 2 figure is calculated by treating all of the CaO as being bound as CaO.MgO.2SiO 2 ; all of the ZrO 2 as being bound as ZrO 2 .SiO 2 ; and the remaining MgO as being bound as MgO.SiO 2 .
- the applicants also assume that any Al 2 O 3 crystallises as AI2O3.S1O2. Any remaining SiO 2 is called the excess SiO 2 .
- Fig 1 is a graph showing linear shrinkage with temperature for blankets comprising the fibres A4-2 and A4-3 of Table 1 below.
- Fig. 2 is a graph showing shrinkage through the height of blankets comprising the fibres A4-2 and A4-3 of Table 1 below.
- Fig. 3 is a graph showing shrinkage of preforms produced from fibres A4-1 , A4-2 and A4-3 of Table 1 below.
- Table 1 shows compositions extracted from WO89/12032, WO93/15028, WO94/15883, and WO97/16386 together with A4, a target composition fibre having the composition:-
- the fibres extracted from the data of WO89/12032 are those for which the SiO 2 excess as specified is less than than 21.8mol% and for which the amount of MgO in mol% is geater than the amount of CaO in mol%.
- A4-1 was produced as bulk fibre; A4-2 was produced as needled blanket having a density of approximately 96 kg.m “3 ; and A4-3 was produced as needled blanket having a density of approximately 128 kg.m “3 .
- the fibres according to the present invention show lower shrinkage at 1260°C than do the extracted fibres other than fibre Unifrax 42 which has a radically different composition.
- Figs. 1-3 graphs show the shrinkage characteristics of the fibres A4-1, A4-2, and A4-3 after 24 hours exposure to the indicated temperatures, it can be seen that the fibres are readily usable at temperatures of 1200°C or more.
- Table 2 shows the results of solubility tests on the fibres in physiological saline solution indicating mat the fibres are soluble in body fluids. (See WO94/15883 for a discussion of methods of measuring solubility). Pairs of results are indicated for separate tests on each sample as is a mean total solubility.
- the first test was aimed at indicating the amount of dust that might be released on handling.
- the test comprised the determination of the amount of dust present in a sample of blanket made from the respective fibres.
- the samples of blanket were vibrated on a Fritsch Analysette type 3010 vibratory sieve shaker, which was set for a frequency of 3000Hz and vertical amplitude of 0.5mm.
- the apparatus was equipped with a 1.6mm sieve and a pan.
- a sample of blanket 135mm x 135mm was placed on the sieve and vibrated for 10 minutes.
- the material collected in the pan was weighed and expressed as a percentage of the original weight of the sample. The results were as indicated below:-
- the inventive fibre is of comparable low dustiness to Superwool 607TM.
- the second test made was to look to the shrinkage behaviour of blanket formed from the inventive fibre and the two SuperwoolTM fibres at high temperatures. Samples of blanket were exposed to specified temperatures for 24 hour periods and their linear shrinkage measured. The results are indicated in Table 3 below:-
- the fibres of the present invention therefore have a high solubility (desired to permit fibres to be cleared from the body quickly); a low dustiness (desired to reduce the amount of fibre that can be inhaled); and good high temperature characteristics.
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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)
- Glass Compositions (AREA)
- Inorganic Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA02002380A MXPA02002380A (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fibres. |
EP00954777A EP1212265B1 (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fibres |
AU67132/00A AU769172B2 (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fibres |
CA002383440A CA2383440C (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fibres |
US10/070,595 US6861381B1 (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fibres |
AT00954777T ATE243665T1 (en) | 1999-09-10 | 2000-08-24 | HIGH TEMPERATURE RESISTANT FIBERS SOLUBLE IN SALT SOLUTION |
DE60003569T DE60003569T2 (en) | 1999-09-10 | 2000-08-24 | HIGH TEMPERATURE RESISTANT FIBERS SOLUBLE IN SALT SOLUTION |
BRPI0013868-1A BR0013868B1 (en) | 1999-09-10 | 2000-08-24 | High temperature resistant soluble saline fibers. |
JP2001523329A JP4066138B2 (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fiber |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9921504.8 | 1999-09-10 | ||
GBGB9921504.8A GB9921504D0 (en) | 1999-09-10 | 1999-09-10 | High temperatures resistant saline soluble fibres |
GB9924867A GB2348640B (en) | 1999-09-10 | 1999-10-20 | High temperature resistant saline soluble fibres |
GB9924867.6 | 1999-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001019744A1 true WO2001019744A1 (en) | 2001-03-22 |
Family
ID=26315921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/003275 WO2001019744A1 (en) | 1999-09-10 | 2000-08-24 | High temperature resistant saline soluble fibres |
Country Status (15)
Country | Link |
---|---|
US (1) | US6861381B1 (en) |
EP (1) | EP1212265B1 (en) |
JP (1) | JP4066138B2 (en) |
CN (1) | CN1373740A (en) |
AT (1) | ATE243665T1 (en) |
AU (1) | AU769172B2 (en) |
BR (1) | BR0013868B1 (en) |
CA (1) | CA2383440C (en) |
CZ (1) | CZ296627B6 (en) |
DE (1) | DE60003569T2 (en) |
ES (1) | ES2202162T3 (en) |
MX (1) | MXPA02002380A (en) |
PL (1) | PL354487A1 (en) |
RU (1) | RU2247085C2 (en) |
WO (1) | WO2001019744A1 (en) |
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US7468337B2 (en) | 2003-06-27 | 2008-12-23 | Unifrax I Llc | High temperature resistant vitreous inorganic fiber |
US7651965B2 (en) | 2002-01-04 | 2010-01-26 | The Morgan Crucible Company Plc | Saline soluble inorganic fibres |
US7875566B2 (en) | 2004-11-01 | 2011-01-25 | The Morgan Crucible Company Plc | Modification of alkaline earth silicate fibres |
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2000
- 2000-08-24 AU AU67132/00A patent/AU769172B2/en not_active Ceased
- 2000-08-24 ES ES00954777T patent/ES2202162T3/en not_active Expired - Lifetime
- 2000-08-24 AT AT00954777T patent/ATE243665T1/en active
- 2000-08-24 BR BRPI0013868-1A patent/BR0013868B1/en not_active IP Right Cessation
- 2000-08-24 US US10/070,595 patent/US6861381B1/en not_active Expired - Lifetime
- 2000-08-24 CN CN00812697A patent/CN1373740A/en active Pending
- 2000-08-24 JP JP2001523329A patent/JP4066138B2/en not_active Expired - Fee Related
- 2000-08-24 CZ CZ20020862A patent/CZ296627B6/en not_active IP Right Cessation
- 2000-08-24 MX MXPA02002380A patent/MXPA02002380A/en active IP Right Grant
- 2000-08-24 CA CA002383440A patent/CA2383440C/en not_active Expired - Fee Related
- 2000-08-24 RU RU2002109226/03A patent/RU2247085C2/en not_active IP Right Cessation
- 2000-08-24 EP EP00954777A patent/EP1212265B1/en not_active Expired - Lifetime
- 2000-08-24 DE DE60003569T patent/DE60003569T2/en not_active Expired - Lifetime
- 2000-08-24 PL PL00354487A patent/PL354487A1/en not_active IP Right Cessation
- 2000-08-24 WO PCT/GB2000/003275 patent/WO2001019744A1/en active IP Right Grant
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WO1993015028A1 (en) * | 1992-01-17 | 1993-08-05 | The Morgan Crucible Company Plc | Saline soluble inorganic fibres |
WO1994015883A1 (en) * | 1993-01-15 | 1994-07-21 | The Morgan Crucible Company Plc | Saline soluble inorganic fibres |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7651965B2 (en) | 2002-01-04 | 2010-01-26 | The Morgan Crucible Company Plc | Saline soluble inorganic fibres |
US7468336B2 (en) | 2003-06-27 | 2008-12-23 | Unifrax Llc | High temperature resistant vitreous inorganic fiber |
US7468337B2 (en) | 2003-06-27 | 2008-12-23 | Unifrax I Llc | High temperature resistant vitreous inorganic fiber |
US7875566B2 (en) | 2004-11-01 | 2011-01-25 | The Morgan Crucible Company Plc | Modification of alkaline earth silicate fibres |
Also Published As
Publication number | Publication date |
---|---|
CA2383440C (en) | 2008-06-17 |
ES2202162T3 (en) | 2004-04-01 |
ATE243665T1 (en) | 2003-07-15 |
PL354487A1 (en) | 2004-01-26 |
BR0013868B1 (en) | 2010-01-26 |
DE60003569T2 (en) | 2004-04-29 |
JP4066138B2 (en) | 2008-03-26 |
AU769172B2 (en) | 2004-01-15 |
CN1373740A (en) | 2002-10-09 |
CZ2002862A3 (en) | 2003-12-17 |
CA2383440A1 (en) | 2001-03-22 |
JP2003509320A (en) | 2003-03-11 |
MXPA02002380A (en) | 2002-08-20 |
AU6713200A (en) | 2001-04-17 |
RU2247085C2 (en) | 2005-02-27 |
DE60003569D1 (en) | 2003-07-31 |
CZ296627B6 (en) | 2006-05-17 |
EP1212265B1 (en) | 2003-06-25 |
EP1212265A1 (en) | 2002-06-12 |
BR0013868A (en) | 2002-05-28 |
US6861381B1 (en) | 2005-03-01 |
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