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GB2032845A - Mineral wool insulating material - Google Patents

Mineral wool insulating material Download PDF

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Publication number
GB2032845A
GB2032845A GB7923274A GB7923274A GB2032845A GB 2032845 A GB2032845 A GB 2032845A GB 7923274 A GB7923274 A GB 7923274A GB 7923274 A GB7923274 A GB 7923274A GB 2032845 A GB2032845 A GB 2032845A
Authority
GB
United Kingdom
Prior art keywords
wool
layer
insulating
layers
rock wool
Prior art date
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Granted
Application number
GB7923274A
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GB2032845B (en
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Individual
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Publication of GB2032845A publication Critical patent/GB2032845A/en
Application granted granted Critical
Publication of GB2032845B publication Critical patent/GB2032845B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/02—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica the layer of fibres or particles being impregnated or embedded in a plastic substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeves; consisting of two half sleeves; comprising more than two segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

A material for heat and sound insulation consists of at least two layers 2, 3 of mineral wool impregnated with a synthetic resin. The two layers differ at least in that they contain two different mineral wools. Two preferred mineral wools are rock wool and glass wool. An insulating member 1 can be made by impregnating the wools and curing an insulating shell for a pipeline being made by wrapping the two impregnated layers separately along a mandrel, airing the resin, removing the mandrel and optionally cutting the product into two half shells. Rock wool is preferably used on that part of the member that will be hottest and glass wool is preferably used on a covering. <IMAGE>

Description

SPECIFICATION Mineral wool insulating material This invention relates to an insulating material comprising mineral wool treated with a synthetic resin binder, and to a method of production.
Mineral wool such as glass wool and rock wool are the most conventional inorganic fibre materials which are used in insulating technology, but for specific applications it is also possible to use ceramic wool or abestos for insulating members according to the invention. Since ceramic wool generally has a higher temperature stability, namely up to 14000 C, such wools are conveniently used on the side of the insulating member which is exposed to the higher temperature.
Preformed insulating members of mineral wool can be used for the most diverse applications, particularly in building construction but also in other fields of technology. Such insulating members can be used not only for heat insulation, but also for sound insulation.
In the production of preformed insulating members mineral wool may be treated with a synthetic resin and the result converted to the desired shape while being compacted to a certain degree and heated to cure the synthetic resin binder and to fix permanently the shape of the insulating member.
Frequently employed shapes include panels, and tubular sleeves which can be divided after curing into two cylindrical half shells which can be recombined to form a cylindrical shell around a pipeline to insulate the pipe externally. In addition to such standard designs, corresponding insulating members of different shape may be produced for special purposes, for example insulation on interior casings of refrigerators and kitchen stoves.
Rock wool and glass wool are preferred mineral wools, and these two types of mineral wool have a series of different properties which render one or the other of them particularly suitable for specific purposes.
Rock wool has a greater temperature stability than glass wool and it can be employed at temperatures of up to 7000C while glass wool can sinter at temperatures as low as approximately 2400C. Furthermore, to achieve approximately the same fibre bond in the insulating material, glass fibre requires more binder substance than does rock wool. Approximately 1% of binder added to rock wool will produce the same bonding as 5 to 6% of synthetic resin binder added to glass wool.
These two properties mean that a rock wool material has a higher flame-resistance rating than corresponding glass wool material On the other hand, owing to its longer fibre length and lower bulk density, glass wool can be used to make insulating material having a higher rigidity and a lower density. This leads to a substantial weight saving in insulating members.
The substantially greater density of insulating rock wool material, owing to the short fibre length thereof and the resulting greater bulk mass per unit volume, leads to higher thermal losses of the insulated object in the presence of changing temperatures. This is true even if the temperature gradient across the insulating member is the same in both cases since the heavier rock wool mass material has to be heated more for any temperature increase.
As regards sound insulation, rock wool absorbs mainly lower audio frequencies, while glass wool acts mainly at higher audio frequencies. The two materials have a different effect on skin; rock wool should be processed and handled only with great care.
Depending on the degree of compaction in the production of the insulating members, a member of rock wool can have a density of the order of 100 kg/m3 and a glass wool member can have a density of approximately 50-60 kg/m3.
Depending on their application, one or other of such mineral wools has been used and processed, but only as competing or mutually exclusive substances. However, we have discovered that the combination of these materials leads to improved overall properties compared with those of known insulating materials.
Thus, the present invention consists in an insulating material comprising at least two layers comprising mineral wool impregnated with a synthetic resin binder; the mineral wools of the two layers having different properties. We prefer that the two types of mineral wool are rock and glass wool; where this is the case, an insulating member is preferably constructed such that an inner layer is of rock wool and a covering layer is of glass wool at least on one of its outsides.
An insulating material according to the invention can be produced when a base layer of rock wool, treated with a synthetic resin binder, and a covering layer or layers of glass wool treated with a synthetic resin binder, are placed one upon the other in any desired intended arrangement, are together converted into the desired shape, and are together subjected to heat treatment. A phenolic resin, which cures at approximately 2450C can be used as the synthetic resin binder. This method of production offers the advantage that different layers can be directly combined with each other during one heat treatment without any additional use of binder. The possible need for subsequent use of an adhesive for lining purposes is thus obivated.
Insulating shells for pipelines can be made.
These comprise an inwardly oriented base layer of rock wool and a covering layer of glass wool which forms the-outer external surface. Such double-layer insulating shells can be produced by coiling on a mandrel firstly layers of rock wool that have been treated with synthetic resin and then corresponding layers of glass wool; the configuration is then subjected to heat treatment, and subsequently the mandrel is removed from the finished insulating member, which is preferably then cut into two half-shells for ease of fitting to piping.
This construction of insulating shells is particularly suitable for the thermal insulation of hot pipelines. An internal base layer of rock wool having a higher thermal stability bears directly upon the surface of the hot pipeline. In accordance with the expected temperature gradient across the thickness of the complete insulating member glass wool is used instead of rock wool from a specific point of sufficiently low temperature onwards. The entire heat adsorption capacity of the insulating member and therefore its heat losses become lower. Furthermore, the outer layer of glass wool improves the rigidity and substantially facilitates handling of the insulating member since it is not necessary to touch the rock wool layer when the shell is installed.
It is particularly for these last reasons that insulating panels or other members are constructed having a base layer of rock wool surrounded with a covering layer of glass wool on all external surfaces. Such insulating members, which are more convenient for handling, can be used wherever the temperatures which are to be insulated are within specific limits. If such members are used for the insulation of refrigerators or the like, the internal base layer of rock wool will offer the advantage of absorbing even low frequency sounds of the noise generated by the drive units.
In general, the edges of larger panels will not need to be surrounded by a glass wool layer. Such panels can therefore be of sandwich construction comprising a middle layer of rock wool and two covering layers of glass wool.
Three particular insulating members will be briefly explained by way of example by reference to the accompanying drawings, in order to illustrate the invention.
Figure 1 shows a partially sectioned insulating shell for pipe insulation; Figure 2 shows a block-shaped insulating member whose inner base layer of rock wool is completely surrounded by an outer layer of glass wool; and Figure 3 is a plate shaped insulating member with a middle layer of rock wool and two covering layers of glass wool.
Figure 1 shows a cylindrical, tubular insulating member for the. insulation of pipelines. The member is produced as a complete cylindrical tube in accordance with the manufacturing process described, and it is then cut along its median plane for the purpose of installation on pipelines. The pipe shell-like insulating member 1 comprises an inner base layer 2 of rock wool and an outer covering layer 3 of glass wool. The ratio of the thickness of the two layers depends substantially on the expected temperature gradient to which the insulating member will be exposed.
A cup corner of the block-shaped insulating member illustrated in Figure 2 shows that it comprises a base layer 2' of rock wool which is completely surrounded by a covering layer 5 of glass wool.
Figure 3 shows in fractionated form part of a plate-shaped insulating material which has not been processed to its final installation dimensions.
It comprises a middle base layer 2' of rock wool in sandwich configuration, having each of the two principle surfaces covered with covering layers 6, 7 of glass wool.

Claims (14)

1. An insulating material which comprises at least two layers comprising mineral wool impregnated with a synthetic resin binder; the mineral wool of the layers having different properties.
2. An insulating material according to Claim 1, in which the wool of one layer is rock wool and the wool of the other layer is glass wool.
3. An insulating member comprising material according to Claim 1 or Claim 2.
4. A member according to Claim 3, in which an inner layer is of rock wool and an outer layer is of glass wool.
5. A member according to Claim 4, suitable for pipe insulation and constructed in the form of a cylindrical shell or two cylindrical half shells.
6. A member according to Claim 4 or Claim 5, in which the covering layer completely surrounds the said inner layer.
7. A member according to any one of Claims 3 to 6, in which a base layer of rock wool is provided on to surfaces, which are distal to each other, with a covering layer of glass wool.
8. An insulating plate according to Claim 3.
9. A method of making an insulating member according to any of Claims 3 to 8, in which a layer of rock wool is treated with a synthetic resin binder and a layer of.glass wool is treated with a synthetic resin binder and these layers are placed together and are together subjected to heat treatment to set the resin.
10. A method according to Claim 9, in which the layers are formed into any desired shape after being placed together.
1 A method according to Claim 9 and suitable for the production of an insulating member according to Claim 5, in which a base layer of rock wool is coiled on a mandrel and a covering layer of glass wool is coiled on this base layer and the result is subjected to heat treatment to set the resin and subsequently the mandrel is removed.
12. A method according to Claim 11, in which each layer of wool is treated with resin before being wound on the mandrel.
13. An insulating material substantially as herein described with reference to the accompanying drawings.
14. A method of making an insulating member substantially as herein described.
GB7923274A 1978-11-02 1979-07-04 Mineral wool insulating material Expired GB2032845B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782847508 DE2847508A1 (en) 1978-11-02 1978-11-02 MINERAL WOOL INSULATION

Publications (2)

Publication Number Publication Date
GB2032845A true GB2032845A (en) 1980-05-14
GB2032845B GB2032845B (en) 1982-09-15

Family

ID=6053670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7923274A Expired GB2032845B (en) 1978-11-02 1979-07-04 Mineral wool insulating material

Country Status (5)

Country Link
CH (1) CH639927A5 (en)
DE (1) DE2847508A1 (en)
FI (1) FI791971A7 (en)
GB (1) GB2032845B (en)
IT (1) IT1122990B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572332A1 (en) * 1984-10-25 1986-05-02 Prod Cellulosiques Isolants INSULATING PIECE OF VARIOUS SHAPES, FORMED BY A STACK OF HIGH-TEMPERATURE RESISTANT FIBER PATCHES AND METHOD OF MANUFACTURE
WO2001003916A1 (en) * 1999-07-12 2001-01-18 Saint-Gobain Isover Fireproofing insulating material adapted for aeronautical insulation
EP1023993A3 (en) * 1999-01-26 2001-02-28 Wilfried Seitz Insulation compound mat
WO2003018452A1 (en) * 2001-08-29 2003-03-06 Tesa Ag Machine-detectable adhesive tape
WO2004053380A1 (en) * 2002-12-12 2004-06-24 Kingspan Holdings (Irl) Limited Insulating foam sections
WO2004091910A1 (en) * 2003-04-17 2004-10-28 Saint-Gobain Isover Process for producing pipe sleeves from mineral wool
EP0896184B2 (en) † 1997-07-14 2008-01-02 E. Missel GmbH & Co. Insulation covering for pipes
EP2876347A1 (en) * 2013-11-22 2015-05-27 Saint-Gobain Isover G+H Ag Insulation element for the heat and/or sound insulation of pipes, in particular flue ducts

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920895C3 (en) * 1979-05-23 1994-07-14 Wilfried Seitz Pipe insulating shell made of mineral wool and process for its production
US4435468A (en) * 1982-02-12 1984-03-06 Kennecott Corp. Seamless ceramic fiber composite articles and method and apparatus for their production
DE3229393A1 (en) * 1982-08-06 1984-02-09 Coprix-Hochbauteile Wiehofsky & Söhne GmbH, 8913 Schondorf Insulating board having ventilation layers
DE10136269A1 (en) * 2001-07-25 2003-02-13 Missel Gmbh & Co E Multi-layer insulation material
DE102008044871B4 (en) 2008-08-29 2017-03-30 Alexander Hagmann Vacuum casting plant, mixing head for a vacuum casting plant and method for this

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1969838U (en) * 1967-08-16 1967-10-05 Gruenzweig & Hartmann A G MINERAL FIBER FLEECE FOR THE INSULATION OF METALLIC OBJECTS.
BE790789A (en) * 1972-03-24 1973-02-15 Nolco N V METHOD OF MANUFACTURING SOUND-ABSORBING PLATES. (
NL7612071A (en) * 1976-10-29 1978-05-03 Nederlandse Steenwolfabriek Nv MINERAL WOOL ROOF COVERING PLATE.

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181825A1 (en) * 1984-10-25 1986-05-21 PRODUITS CELLULOSIQUES ISOLANTS- PROCELIS Société anonyme: Insulating piece of various shapes made from a pile of layers of high temperature resistant fibres, and process for making it
US4677018A (en) * 1984-10-25 1987-06-30 Produits Cellulosiques Isolants-Procelis Insulating piece in different shapes, formed by stacked layers of fibers capable of withstanding high temperatures, and manufacturing process
FR2572332A1 (en) * 1984-10-25 1986-05-02 Prod Cellulosiques Isolants INSULATING PIECE OF VARIOUS SHAPES, FORMED BY A STACK OF HIGH-TEMPERATURE RESISTANT FIBER PATCHES AND METHOD OF MANUFACTURE
EP0896184B2 (en) † 1997-07-14 2008-01-02 E. Missel GmbH & Co. Insulation covering for pipes
EP1023993A3 (en) * 1999-01-26 2001-02-28 Wilfried Seitz Insulation compound mat
WO2001003916A1 (en) * 1999-07-12 2001-01-18 Saint-Gobain Isover Fireproofing insulating material adapted for aeronautical insulation
FR2796443A1 (en) * 1999-07-12 2001-01-19 Saint Gobain Isover FIRE-RESISTANT INSULATING MATERIAL, SUITABLE FOR AERONAUTICAL INSULATION, METHOD AND DEVICE FOR MANUFACTURING SAME
US7240874B2 (en) 2001-08-29 2007-07-10 Tesa Ag Machine-detectable adhesive tape
WO2003018452A1 (en) * 2001-08-29 2003-03-06 Tesa Ag Machine-detectable adhesive tape
CN100453879C (en) * 2002-12-12 2009-01-21 金斯潘控股有限公司 Heat-insulating foam profile and continuous production method thereof
WO2004053380A1 (en) * 2002-12-12 2004-06-24 Kingspan Holdings (Irl) Limited Insulating foam sections
US8343396B2 (en) 2002-12-12 2013-01-01 Kingspan Holdings (Irl) Limited Insulating foam sections
WO2004091910A1 (en) * 2003-04-17 2004-10-28 Saint-Gobain Isover Process for producing pipe sleeves from mineral wool
RU2335690C2 (en) * 2003-04-17 2008-10-10 Сент-Гобэн Изовер Method of production of tubular sleeves from mineral wool
US7740922B2 (en) 2003-04-17 2010-06-22 Saint-Gobain Isover Process for producing pipe sleeves from mineral wool
EP2876347A1 (en) * 2013-11-22 2015-05-27 Saint-Gobain Isover G+H Ag Insulation element for the heat and/or sound insulation of pipes, in particular flue ducts

Also Published As

Publication number Publication date
FI791971A7 (en) 1981-01-01
DE2847508C2 (en) 1992-02-06
IT7925510A0 (en) 1979-09-05
DE2847508A1 (en) 1980-05-14
IT1122990B (en) 1986-04-30
GB2032845B (en) 1982-09-15
CH639927A5 (en) 1983-12-15

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940704