CA2113093A1 - Insulating element and insulation layer composed of such elements - Google Patents
Insulating element and insulation layer composed of such elementsInfo
- Publication number
- CA2113093A1 CA2113093A1 CA002113093A CA2113093A CA2113093A1 CA 2113093 A1 CA2113093 A1 CA 2113093A1 CA 002113093 A CA002113093 A CA 002113093A CA 2113093 A CA2113093 A CA 2113093A CA 2113093 A1 CA2113093 A1 CA 2113093A1
- Authority
- CA
- Canada
- Prior art keywords
- fibres
- insulating element
- insulating
- protective cover
- element according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000009413 insulation Methods 0.000 title claims description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 14
- 239000011707 mineral Substances 0.000 claims abstract description 14
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 11
- 239000011490 mineral wool Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 230000005808 skin problem Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
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
- 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
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a 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
- 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
- B32B5/02—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 structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
-
- 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
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin 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
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Nonwoven Fabrics (AREA)
Abstract
An insulating element comprising an insulating layer (1) of mineral fibres and an air permeable protective cover (2) consisting of a non-woven fabric of pre-stressed organic fibres and wholly or partially surrounding the insulating layer.
Description
:
WO 93/02259 21 1 3 ~ 9 ~ PCI'/DKg2/Oû2~3 "
:
Insulatin~ element and insulation layer eomPosed o~ such elements.
, I
This invention relates to an insulating element comprising an ins~lating layer made of mineral fibres and an air permeable protective cover sf an organic material, said cover at least partially surrQunding the insulating layer.
More specifically, the invention relates to heat insulating mineral fibre batts or rolls provided with such protective covers.
,.,;, 10 A Insulating batts made ~rom mineral fibres, such as rock wool fibres, 'AI are so flexible that they can be adapted to the surfaces or spaces l' which are to be insulated.
'I
However, during the handling of such batts loose fibres or fibre dust ~; tend to be released. This is particularly troublesome when such batts are used for eeiling insulation purposes.
Another serious drawback of such batts is that they may cause skin problems.
Thus, when sueh unprotected mineral fibre batts are bro~ght in direct contact with the skin~ the fibres extending from the surfaces of such batts tend to penetrate into the skin and to cause itching or local skin irritation.
It is well known to provide mineral fibre batts or rolls with protective covers made from a non-woven fabric or po7yester fibres.
''I
3~ The provisîon of such a cover on a mineral fibre batt or roll eliminates ~r at least reduces some of the above mentioned problems ', but simultaneously creates a new problem, viz. an increased inflammability as the organic fibres are combustible and may eYen support a fire.
~ The main obJect of the present invention is to reduce or eliminate i the drawback of the prior art protected mineral fibre insulating elements.
, ,, J
WO 93/02259 PCr/DK92/1131)223 211311~9 3 ~ ~
The insulating element of the invention is characterized in that the protective cover is made from a material which, when heated to a temperature sufficiently high to set it on fire, contracts with a speed exc~eding the speed at which the fire spreads.
Surprisingly~ it has been found that if embers or a burning match arè dropped on an insulating element of the inven~n, a hole will be formed in the cover but the fire will not spread.
In a preferred embodiment of the insulating element of the inYention the protective cover consists of a non-woven fabric of pre-stressed organic fibres.
J
The expression "prestressed fibres" as used herein means fibres / 15 having inherent stresses, e.g. fibres which during their m~nufacture '1 have b~en strecthed to such an extent as to generate tensile stresses in the ~ibres. When the fibres are heated to melting ~, temperature, the tensile stresses will be released and produce the above mentioned contraction.
?o The proteetive cover may also consist of a perforated film having inherent tensile stresses.
. .
~ Insul~ting batts are known which consist of a layer of mineral fibres ;l 25 enclosed in a sealed polyethylene fi~m bag which has been made sel~-extinguishing by the addition of a fire-retardant agent.
~, Unlike the insulating elements of the invention such insulating bat~s `l~ cannot be compressed and conse~uently the transport of such batts ~ . .
involYes relatively high costs. Furthermore7 the addition of a fire-retardant agent to polyethylene results in a considerable increase in the costs of the material and may cause the generation ~, of toxic compounds by thermal decomposition of the polyethylene.
i., .
:~ 35 The protective cover preferably consists of a non-woven fabric of thermoplastic fibres. A non-woven fabric of pre-stressed polypropylene ~ibres is particularly suitable.
`:~
~ Howev~r, the non-woven fabric may also consist of pre-stressed .1 : i il WZO 93~0ZZ2259 21 1 :3 0 9 3 PC~/DK92/00223 fibres of polyethylene, polyester, polyamide or polyacrylic amide.
The use ~ non-woven fabric comprising a major portion of pre-stressed fibres and a minor portion of soft non-prestressed 5 fibres~ such as 10% viscose fibres, provides an insulating element which in addition to being self-extinguishing is particularly soft to touch. ~
Protectiive covers hZaving a weight of 5-100 g/m2 and particularly 10 5-15 g/m2 are preferred. The insulating layer is preferably completely surrounded by the protective cover, but sometimes it may Zsuffice to apply the protective cover on the main surfaces onl~ or on two opposite sides oZr ends of the insulating c~lement.
15 The insulating layer preferably consists of syn~hetic mineral fibres5 including rock wool fibres, glas fibres, slag fibres and ceraZmic fibres.
It is preferred to use a mineral fibre layer eonsisting of rock wool 20 fibres and in partiZcular rock wool fibres prepared by a method comprising the steps of introdZullting a melt of fibre forming raw material onto the cylinder surfacZe of a rapidly rotating spinning wheel and subjecting the melt thrown out from this surface to the influence of one or more air streams passing over saiZZl surface, and ~; 25 optionally adding a bindZer to the fibres thus formed before ~ collecting them so as to form a fibre layer which optionally is t suZbjectecll to a doublZing~ compressiaZn and heating in order to oure ~i the binder.
;
ZZ ~
Z 3~Z The ~ZiCknZess oZf the mineral f~bre layer is prefe~ably between 1 and Z30~ cm and its dZensity i~ preferably from 15 to ~oZo kg/m3.
t 'Z
: ~ The invention also relates to an insulation layer consisting of insulating elements as described above.
The invention will now be descZ ribed in further detail with reference to thc drawing which shows a perspective view of an insulating batt ~i aecording to the inYention and with the protective cover partially removed.
,j WO 93/0~259 P~,~/DK92/00223 21~333 4 - In the drawing 1 designates a mineral wool layer and 2 a protective 3 cover consisting of a non-woven fabric of organic, pre-stressed thermoplastic fibresO
J lo ~ ' ~ ~ 20 !, : : :
~ ' ~
:~ :
~r¦
WO 93/02259 21 1 3 ~ 9 ~ PCI'/DKg2/Oû2~3 "
:
Insulatin~ element and insulation layer eomPosed o~ such elements.
, I
This invention relates to an insulating element comprising an ins~lating layer made of mineral fibres and an air permeable protective cover sf an organic material, said cover at least partially surrQunding the insulating layer.
More specifically, the invention relates to heat insulating mineral fibre batts or rolls provided with such protective covers.
,.,;, 10 A Insulating batts made ~rom mineral fibres, such as rock wool fibres, 'AI are so flexible that they can be adapted to the surfaces or spaces l' which are to be insulated.
'I
However, during the handling of such batts loose fibres or fibre dust ~; tend to be released. This is particularly troublesome when such batts are used for eeiling insulation purposes.
Another serious drawback of such batts is that they may cause skin problems.
Thus, when sueh unprotected mineral fibre batts are bro~ght in direct contact with the skin~ the fibres extending from the surfaces of such batts tend to penetrate into the skin and to cause itching or local skin irritation.
It is well known to provide mineral fibre batts or rolls with protective covers made from a non-woven fabric or po7yester fibres.
''I
3~ The provisîon of such a cover on a mineral fibre batt or roll eliminates ~r at least reduces some of the above mentioned problems ', but simultaneously creates a new problem, viz. an increased inflammability as the organic fibres are combustible and may eYen support a fire.
~ The main obJect of the present invention is to reduce or eliminate i the drawback of the prior art protected mineral fibre insulating elements.
, ,, J
WO 93/02259 PCr/DK92/1131)223 211311~9 3 ~ ~
The insulating element of the invention is characterized in that the protective cover is made from a material which, when heated to a temperature sufficiently high to set it on fire, contracts with a speed exc~eding the speed at which the fire spreads.
Surprisingly~ it has been found that if embers or a burning match arè dropped on an insulating element of the inven~n, a hole will be formed in the cover but the fire will not spread.
In a preferred embodiment of the insulating element of the inYention the protective cover consists of a non-woven fabric of pre-stressed organic fibres.
J
The expression "prestressed fibres" as used herein means fibres / 15 having inherent stresses, e.g. fibres which during their m~nufacture '1 have b~en strecthed to such an extent as to generate tensile stresses in the ~ibres. When the fibres are heated to melting ~, temperature, the tensile stresses will be released and produce the above mentioned contraction.
?o The proteetive cover may also consist of a perforated film having inherent tensile stresses.
. .
~ Insul~ting batts are known which consist of a layer of mineral fibres ;l 25 enclosed in a sealed polyethylene fi~m bag which has been made sel~-extinguishing by the addition of a fire-retardant agent.
~, Unlike the insulating elements of the invention such insulating bat~s `l~ cannot be compressed and conse~uently the transport of such batts ~ . .
involYes relatively high costs. Furthermore7 the addition of a fire-retardant agent to polyethylene results in a considerable increase in the costs of the material and may cause the generation ~, of toxic compounds by thermal decomposition of the polyethylene.
i., .
:~ 35 The protective cover preferably consists of a non-woven fabric of thermoplastic fibres. A non-woven fabric of pre-stressed polypropylene ~ibres is particularly suitable.
`:~
~ Howev~r, the non-woven fabric may also consist of pre-stressed .1 : i il WZO 93~0ZZ2259 21 1 :3 0 9 3 PC~/DK92/00223 fibres of polyethylene, polyester, polyamide or polyacrylic amide.
The use ~ non-woven fabric comprising a major portion of pre-stressed fibres and a minor portion of soft non-prestressed 5 fibres~ such as 10% viscose fibres, provides an insulating element which in addition to being self-extinguishing is particularly soft to touch. ~
Protectiive covers hZaving a weight of 5-100 g/m2 and particularly 10 5-15 g/m2 are preferred. The insulating layer is preferably completely surrounded by the protective cover, but sometimes it may Zsuffice to apply the protective cover on the main surfaces onl~ or on two opposite sides oZr ends of the insulating c~lement.
15 The insulating layer preferably consists of syn~hetic mineral fibres5 including rock wool fibres, glas fibres, slag fibres and ceraZmic fibres.
It is preferred to use a mineral fibre layer eonsisting of rock wool 20 fibres and in partiZcular rock wool fibres prepared by a method comprising the steps of introdZullting a melt of fibre forming raw material onto the cylinder surfacZe of a rapidly rotating spinning wheel and subjecting the melt thrown out from this surface to the influence of one or more air streams passing over saiZZl surface, and ~; 25 optionally adding a bindZer to the fibres thus formed before ~ collecting them so as to form a fibre layer which optionally is t suZbjectecll to a doublZing~ compressiaZn and heating in order to oure ~i the binder.
;
ZZ ~
Z 3~Z The ~ZiCknZess oZf the mineral f~bre layer is prefe~ably between 1 and Z30~ cm and its dZensity i~ preferably from 15 to ~oZo kg/m3.
t 'Z
: ~ The invention also relates to an insulation layer consisting of insulating elements as described above.
The invention will now be descZ ribed in further detail with reference to thc drawing which shows a perspective view of an insulating batt ~i aecording to the inYention and with the protective cover partially removed.
,j WO 93/0~259 P~,~/DK92/00223 21~333 4 - In the drawing 1 designates a mineral wool layer and 2 a protective 3 cover consisting of a non-woven fabric of organic, pre-stressed thermoplastic fibresO
J lo ~ ' ~ ~ 20 !, : : :
~ ' ~
:~ :
~r¦
Claims (8)
1. An insulating element comprising an insulating layer made of mineral fibres and an air permeable protective cover of an organic material, said cover at least partially surrounding the insulating layer, c h a r a c t e r i z e d in that the protective cover is made from a material which, when heated to a temperature sufficiently high to set it on fire, contracts with a speed exceeding the speed at which the fire spreads.
2. An insulating element according to claim 1, c h a r a c t e r -i z e d in that the protective cover consists of a non-woven fabric mainly consisting of pre-stressed organic fibres.
3. An insulating element according to claim 1 or 2, c h a r a c -t e r i z e d in that the non-woven fabric comprises pre-stressed thermoplastic fibres.
4. An insulating element according to any of claims 1, 2 or 3, c h a r a c t e r i z e d in that the non-woven fabric consists of a minor portion of soft non-prestressed fibres.
5. An insulating element according to any of the claims 1-4, c h a r a c t e r i z e d in that the protective cover consists of pre-stressed polypropylene fibres.
6. An insulating element according to any of the claims 1-5, c h a r a c t e r i z e d in that the protective cover has a weight of 5-100 g/m2, particularly 5-15 g/m2.
7. An insulating element according to any of the preceding claims, c h a r a c t e r i z e d in that the mineral fibres are rock wool fibres.
8. An insulation layer, c h a r a c t e r i z e d in that it is composed of insulating elements according to any of the preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK911353A DK135391D0 (en) | 1991-07-15 | 1991-07-15 | Insulation element and insulation layer made up of such elements |
| DK1353/91 | 1991-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2113093A1 true CA2113093A1 (en) | 1993-02-04 |
Family
ID=8103918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002113093A Abandoned CA2113093A1 (en) | 1991-07-15 | 1992-07-13 | Insulating element and insulation layer composed of such elements |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0594768A1 (en) |
| AU (1) | AU2386092A (en) |
| CA (1) | CA2113093A1 (en) |
| DK (1) | DK135391D0 (en) |
| WO (1) | WO1993002259A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277955A (en) * | 1989-12-08 | 1994-01-11 | Owens-Corning Fiberglas Technology Inc. | Insulation assembly |
| AT2482U1 (en) * | 1993-02-17 | 1998-11-25 | Rockwool Int | INSULATING WAD |
| DK18293D0 (en) * | 1993-02-17 | 1993-02-17 | Rockwool Int | INSULATION MATTERS |
| WO1995020707A1 (en) * | 1994-01-28 | 1995-08-03 | Rockwool International A/S | Insulating mat comprising a mineral fibre layer |
| US5848509A (en) * | 1995-08-31 | 1998-12-15 | Certainteed Corporation | Encapsulated insulation assembly |
| DE19734532C2 (en) * | 1997-07-31 | 2002-06-13 | Thueringer Daemmstoffwerke Gmb | insulating element |
| GB2329864A (en) * | 1997-10-01 | 1999-04-07 | Kenneth Hughes Williams | Insulating material |
| WO2002035004A1 (en) * | 2000-10-27 | 2002-05-02 | Rockwool International A/S | A vibration damping system |
| DE60231195D1 (en) * | 2001-04-04 | 2009-04-02 | Rockwool Int | VIBRATION SYSTEM |
| EP1312714A1 (en) | 2001-11-14 | 2003-05-21 | Rockwool International A/S | A vibration damping system |
| CN103590500A (en) * | 2013-11-21 | 2014-02-19 | 无锡合众信息科技有限公司 | Compound fireproof heat-preservation board |
| US11661740B2 (en) * | 2021-10-07 | 2023-05-30 | ORB Technologies, LLC | System, apparatus, and method for providing a plant-based structural assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2971616A (en) * | 1956-12-06 | 1961-02-14 | William Bayley Co | Building panel |
| DE2209275A1 (en) * | 1972-02-26 | 1973-08-30 | Hoechst Ag | COMPONENT |
| NL7612071A (en) * | 1976-10-29 | 1978-05-03 | Nederlandse Steenwolfabriek Nv | MINERAL WOOL ROOF COVERING PLATE. |
| DK142064B (en) * | 1978-02-28 | 1980-08-18 | Rockwool Int | Mineral wool plate for thermal or acoustic insulation. |
| US4300322A (en) * | 1980-03-28 | 1981-11-17 | Clark William H | Insulation |
| DE3129231C2 (en) * | 1981-03-04 | 1983-09-15 | Braun-Bautenschutz, 5787 Olsberg | Multi-layer element for holding insulation materials |
-
1991
- 1991-07-15 DK DK911353A patent/DK135391D0/en not_active Application Discontinuation
-
1992
- 1992-07-13 AU AU23860/92A patent/AU2386092A/en not_active Abandoned
- 1992-07-13 EP EP92916084A patent/EP0594768A1/en not_active Ceased
- 1992-07-13 WO PCT/DK1992/000223 patent/WO1993002259A1/en not_active Application Discontinuation
- 1992-07-13 CA CA002113093A patent/CA2113093A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0594768A1 (en) | 1994-05-04 |
| DK135391D0 (en) | 1991-07-15 |
| WO1993002259A1 (en) | 1993-02-04 |
| AU2386092A (en) | 1993-02-23 |
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