WO1991010023A1 - Lightweight composite panels - Google Patents
Lightweight composite panels Download PDFInfo
- Publication number
- WO1991010023A1 WO1991010023A1 PCT/GB1990/001982 GB9001982W WO9110023A1 WO 1991010023 A1 WO1991010023 A1 WO 1991010023A1 GB 9001982 W GB9001982 W GB 9001982W WO 9110023 A1 WO9110023 A1 WO 9110023A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- core
- composite panel
- panel according
- card
- paper
- Prior art date
Links
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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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 form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- 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 form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- 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
- E04C2/24—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 laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
- E04C2/246—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 laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
-
- 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
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/024—Honeycomb
-
- 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
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- 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
-
- 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
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
Definitions
- This invention relates to lightweight composite panels.
- Lightweight composite panels find application in numerous fields, particularly for forming screens, display boards and as infill panels in larger structures.
- the panels generally consist of two surface skins, which may be the same or different, and which have between them a low bulk density filling.
- This may be, for example, a foam or a cellular structure, and one particular form of cellular structure, viz. a honeycomb structure has found widespread application.
- Composite panels with a honeycomb central structure are highly resistant to bending, thus giving rigidity to panels made in that way.
- An alternative cellular structure of value is a foam plastics material, for example a rigid polystyrene, polyurethane or other rigid polymer foam.
- the lightweight foam or cellular core may be inflammable, and the outer skins must act to protect the core.
- Another problem is the tendency of such panels to be sensitive to ambient conditions, particularly changes in humidity, which can lead to difficulties such as warping or bending in practice.
- Flat surfaces are needed for aesthetic acceptance and for ease of subsequent processing, for example covering or printing.
- European Patent Specification 0068873 discloses further details relating to the manufacture of composite panels of this type and proposes a way of overcoming the tendency to moisture or humidity sensitivity by using for the outer facing layers of the panels paperboard having on each side a water impervious layer consisting of an adherent polymer coating which has been directly applied to the paperboard in a water- and solvent-free manner.
- a composite panel consisting of a cellular core material having adhered each side thereof a facing material, wherein the facing material consists of paperboard or cardboard to each side of which has been laminated a layer of metal foil and wherein the layer of metal foil adhered
- V to the core is provided with a primer coat. »
- the core for lightweight panels in accordance with the present invention may be a core of honeycomb material or may be a rigid ' polymeric foam material. If honeycomb is
- this may be an expandable card or paper honeycomb having hexagonal cells or it may be, e.g. a cellular card fill consisting of alternate straight and corrugated strips of card or paper. In both these types of core, the cells run perpendicular to the plane of the panel.
- the core may itself be faced with paper or light card, e.g. kraft paper or chipboard of basis weight 120-150 gsm.
- paper or light card e.g. kraft paper or chipboard of basis weight 120-150 gsm.
- Such a paper facing can be advantageous in certain circumstances, for example, allowing a greater
- the core may be made up of alternate layers of paper or card and of corrugated paper or card.
- the paper or card layers may be of basis weight 120 to 300 gsm and the corrugated paper or card of basis weight 100 to 125 gsm.
- the paper, card or foam material of the core may be treated with or include additives tending to reduce its combustibility.
- the central core of the panels is, for example, a foam polystyrene or foam polyurethane, preferably (and essentially for certain applications) fire retardent (self-extinguishing) grades of such foam materials are used.
- One or both outer faces of the panels may also be coated with a fire retardant coating of known type further to reduce the combustibility of the panels.
- the adhesion of the core material to the facing material is promoted by the use, on the side of the facing material adjacent to the core, of a primer material.
- a primer material is usable as primer, the criteria for selection being that the primer must adhere well to the surface of the metal foil on the one hand and be well receptive to adhesives with which the core material is to be adhesed on the other.
- Particularly preferred primers are nitrocellulose based lacquers. These are available in commerce in the printing industry.
- the core material may be bonded to the primed face of the facing material using conventional composite panel adhesives, for example those based on urea formaldehyde resins or polyvinyl acetates.
- a commercially available white lined chipboard 800 microns thick and having a basis weight of 566 grams per square metre was taken. This was laminated on both sides with standard 9 micron aluminium foil using a casein latex adhesive. The adhesive was applied at an application rate of 2 grams per square metre when dried down.
- one side of the aluminium foil lined chipboard sheets was coated with a gravure print grade of nitrocellulose lacquer at a coating weight (dried down) of 1.5 grams per square metre.
- the other side was coated with a white flame retardant coating at a rate giving a dried down coating weight of 1.5 grams per square metre.
- Sheets of this facing material were then cut and adhered using a conventional ureaformaldehyde adhesive to expanded card honeycomb to form composite panels.
- the thickness of the expanded honeycomb layer varied between 10 and 30 mm depending upon the particular honeycomb used.
- Sheets of facing material prepared as in Example 1 were cut and adhered using a conventional urea formaldehyde adhesive to sheets of rigid expanded polystyrene
- Panels so manufactured were subjected to evaluation to determine their dimensional stability under conditions of altering relative humidity and were also subjected to surface spread of flame tests in accordance with BS 476, Part 7 1987 to determine their suitability for use as display panels for exhibition purposes. Satisfactory results were achieved on both counts. As in the case of the panels of Example 1, the maximum travel of flame damage from the point of flame impingement when the BS 476 test was carried out never exceeded 50 mm.
- Sheets of facing material prepared as in Example 1 were cut and adhered using a conventional urea formaldehyde adhesive to sheets of multilayer corrugated cardboard to form composite panels.
- the multilayer corrugated cardboard consisted of a centre board (115 or 117 gsm chip liner) with a B or C flute corrugated semichemical board (110 or 112 gsm) adhered either side, with a kraft exterior skin (125, 150, 200 or 300 gsm) adhered to each of the corrugated boards.
- the precise combination of basis weights could be chosen to provide cores of overall thickness 5.5 to 8 mm, the choice depending on the final panel thickness, weight and strength desired.
- Panels so manufactured were subjected to evaluation to determine their dimensional stability under conditions of altering relative humidity and were also subjected to surface spread of flame tests in accordance with BS 476, Part 7 1987 to determine their suitability for use as display panels for exhibition purposes. Satisfactory results were achieved on both counts.
- Expanded hexagonal paper honeycomb (cell size 13-15 mm, paper basis weight 130 gsm) of thickness (cell length) 9 mm was faced each side with a facing of 130 gsm chipboard, using a standard polyvinyl acetate adhesive. To each side of this core was adhered, using a standard ureaformaldehyde based adhesive, the printed side of sheets of facing material as in Example 1.
Abstract
Composite panels consist of a core and a facing adhered each side of the core. The core may be of cellular material, for example expanded honeycomb, plastics foam or corrugated cardboard. The facings are of paper or card to each side of which a thin foil, e.g. an aluminium foil, is adhered. The face of the facing adhered to the core carries a primer layer to improve adhesion, for example a nitrocellulose lacquer primer. The other face may bear a flame retardant coating.
Description
LIGHTWEIGHT COMPOSITE PANELS
This invention relates to lightweight composite panels.
Lightweight composite panels find application in numerous fields, particularly for forming screens, display boards and as infill panels in larger structures.
The panels generally consist of two surface skins, which may be the same or different, and which have between them a low bulk density filling. This may be, for example, a foam or a cellular structure, and one particular form of cellular structure, viz. a honeycomb structure has found widespread application. Composite panels with a honeycomb central structure are highly resistant to bending, thus giving rigidity to panels made in that way. An alternative cellular structure of value is a foam plastics material, for example a rigid polystyrene, polyurethane or other rigid polymer foam.
One of the major problems encountered in relation to such lightweight composite panels is imparting to them adequate fire retardency and surface spread of flame resistance. The lightweight foam or cellular core may be inflammable, and the outer skins must act to protect the core. Another problem is the tendency of such panels to be sensitive to ambient conditions, particularly changes in humidity,
which can lead to difficulties such as warping or bending in practice. Flat surfaces are needed for aesthetic acceptance and for ease of subsequent processing, for example covering or printing.
European Patent Specification 0068873 discloses further details relating to the manufacture of composite panels of this type and proposes a way of overcoming the tendency to moisture or humidity sensitivity by using for the outer facing layers of the panels paperboard having on each side a water impervious layer consisting of an adherent polymer coating which has been directly applied to the paperboard in a water- and solvent-free manner.
While undoubtedly effective to reduce or eliminate problems due to humidity changes, the manufacture of composite panels in accordance with the invention described in European Patent Specification 0068873 is difficult, not least because of the inert nature of the surface of the water impervious layer. The specification suggests the use of corona discharge treatment to overcome these problems, but that treatment adds to the expense, and the effects of such treatment fade with time, so it is necessary to carry out subsequent processing steps rapidly following the corona discharge treatment. This is disadvantageous from a manufacturing point of view.
We have now found a way of making improved composite panels of the type noted above which can be carried out simply and economically and which avoids the humidity sensitivity problems noted above and at the same time increases the fire resistance of the panels.
According to the present invention, there is provided a composite panel consisting of a cellular core material having adhered each side thereof a facing material,
wherein the facing material consists of paperboard or cardboard to each side of which has been laminated a layer of metal foil and wherein the layer of metal foil adhered
V to the core is provided with a primer coat. »
5
We have found that working in this way it is not necessary to use the solvent- and water-free applied polymer coatings suggested in the European specification referred to above. Rather, it is possible to use as the facing
10 material paperboard or cardboard to which metal foil, usually aluminium foil, has been laminated on both sides using standard water- or solvent-based laminating adhesives. In particular, standard latex or emulsion-type adhesives may be used at extremely low application rates,
15 for example as low as 2 gs .
The core for lightweight panels in accordance with the present invention may be a core of honeycomb material or may be a rigid'polymeric foam material. If honeycomb is
20 used, this may be an expandable card or paper honeycomb having hexagonal cells or it may be, e.g. a cellular card fill consisting of alternate straight and corrugated strips of card or paper. In both these types of core, the cells run perpendicular to the plane of the panel. To
25 assist stability, especially in the case of expandable honeycomb fill, the core may itself be faced with paper or light card, e.g. kraft paper or chipboard of basis weight 120-150 gsm. Such a paper facing can be advantageous in certain circumstances, for example, allowing a greater
30 range of cell sizes to be used whilst still supporting the faces adequately and secondly by facilitating the cutting of the core sections to precise size to fit within the cavity of the panel frame, thereby eliminating the risk of small voids occurring which can cause the depressions or
35 blemishes on the finished panel surface.
Alternatively, the core may be made up of alternate layers of paper or card and of corrugated paper or card. The paper or card layers may be of basis weight 120 to 300 gsm and the corrugated paper or card of basis weight 100 to 125 gsm.
In all cases, the paper, card or foam material of the core may be treated with or include additives tending to reduce its combustibility. If the central core of the panels is, for example, a foam polystyrene or foam polyurethane, preferably (and essentially for certain applications) fire retardent (self-extinguishing) grades of such foam materials are used. One or both outer faces of the panels may also be coated with a fire retardant coating of known type further to reduce the combustibility of the panels.
The adhesion of the core material to the facing material is promoted by the use, on the side of the facing material adjacent to the core, of a primer material. A variety of materials is usable as primer, the criteria for selection being that the primer must adhere well to the surface of the metal foil on the one hand and be well receptive to adhesives with which the core material is to be adhesed on the other. Particularly preferred primers are nitrocellulose based lacquers. These are available in commerce in the printing industry.
The core material may be bonded to the primed face of the facing material using conventional composite panel adhesives, for example those based on urea formaldehyde resins or polyvinyl acetates.
The following examples will serve to illustrate the invention:
Example 1
As base material for the facing layers, a commercially available white lined chipboard, 800 microns thick and having a basis weight of 566 grams per square metre was taken. This was laminated on both sides with standard 9 micron aluminium foil using a casein latex adhesive. The adhesive was applied at an application rate of 2 grams per square metre when dried down.
Subsequent to laminating, one side of the aluminium foil lined chipboard sheets was coated with a gravure print grade of nitrocellulose lacquer at a coating weight (dried down) of 1.5 grams per square metre. The other side was coated with a white flame retardant coating at a rate giving a dried down coating weight of 1.5 grams per square metre.
Sheets of this facing material were then cut and adhered using a conventional ureaformaldehyde adhesive to expanded card honeycomb to form composite panels. The thickness of the expanded honeycomb layer varied between 10 and 30 mm depending upon the particular honeycomb used.
Panels so manufactured were subjected to evaluation to determine their dimensional stability under conditions of altering relative humidity and were also subjected to surface spread of flame tests in accordance with BS 476, Part 7, 1987 to determine their suitability for use as display panels for exhibition purposes. Satisfactory results were achieved on both counts. In particular, the maximium travel of flame damage from the point of flame impingement never exceeded 50 mm, well below the maximum permitted travel of 165 mm for certification to Class I, BS 476, Part 7 1987.
Example 2
Sheets of facing material prepared as in Example 1 were cut and adhered using a conventional urea formaldehyde adhesive to sheets of rigid expanded polystyrene
(self-extinguishing grade), 13 mm thick, to form composite panels.
Panels so manufactured were subjected to evaluation to determine their dimensional stability under conditions of altering relative humidity and were also subjected to surface spread of flame tests in accordance with BS 476, Part 7 1987 to determine their suitability for use as display panels for exhibition purposes. Satisfactory results were achieved on both counts. As in the case of the panels of Example 1, the maximum travel of flame damage from the point of flame impingement when the BS 476 test was carried out never exceeded 50 mm.
Example 3
Sheets of facing material prepared as in Example 1 were cut and adhered using a conventional urea formaldehyde adhesive to sheets of multilayer corrugated cardboard to form composite panels.
The multilayer corrugated cardboard consisted of a centre board (115 or 117 gsm chip liner) with a B or C flute corrugated semichemical board (110 or 112 gsm) adhered either side, with a kraft exterior skin (125, 150, 200 or 300 gsm) adhered to each of the corrugated boards. The precise combination of basis weights could be chosen to provide cores of overall thickness 5.5 to 8 mm, the choice depending on the final panel thickness, weight and strength desired.
Panels so manufactured were subjected to evaluation to determine their dimensional stability under conditions of altering relative humidity and were also subjected to surface spread of flame tests in accordance with BS 476, Part 7 1987 to determine their suitability for use as display panels for exhibition purposes. Satisfactory results were achieved on both counts.
Example 4
Expanded hexagonal paper honeycomb (cell size 13-15 mm, paper basis weight 130 gsm) of thickness (cell length) 9 mm was faced each side with a facing of 130 gsm chipboard, using a standard polyvinyl acetate adhesive. To each side of this core was adhered, using a standard ureaformaldehyde based adhesive, the printed side of sheets of facing material as in Example 1.
Panels having similar satisfactory properties with respect to insensitivity to changes in humidity and fire resistance were obtained.
Claims
1. A composite panel consisting of a cellular core material having adhered each side thereof a facing material, characterised in that the facing material consists of paperboard or cardboard to each side of which has been laminated a layer of metal foil and wherein the layer of metal foil adhered to the core is provided with a primer coat.
2. A composite panel according to Claim 1, wherein the facing material is paperboard or cardboard to which aluminium foil has been laminated on both sides using a standard water- or solvent-based laminating adhesive at an application rate of 2 to 5 gsm.
3. A composite panel according to Claim 1 or 2, wherein the core is of honeycomb material, a rigid polymeric foam material, or a corrugated card fill.
4. A composite panel according to Claim 3, wherein the core is of an expandable card or paper honeycomb having hexagonal cells or a cellular card fill consisting of alternate straight and corrugated strips of card or paper.
5. A composite panel according to Claim 4, wherein each side of the core is faced with paper or light card.
6. A composite panel according to Claim 3, wherein the core is of alternating layers of paper or card and of corrugated paper or card.
7. A composite panel according to any one of Claims 1 to 6, wherein the material of the core is treated with or includes additives tending to reduce its combustibility.
8. A composite panel according to any one of Claims 1 to 7, wherein one or both surfaces of the facing material remote from the core carries a flame retardant coating.
•\
5 9. A composite panel according to any one of Claims 1 to 8, wherein the primer coat is a nitrocellulose based lacquer.
10. A composite panel according to any one of Claims 1 10 to 9, wherein the core material is bonded to the face of the facing material provided with a primer coat by an adhesive based on a ureaformaldehyde resin or a polyvinyl acetate.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898928988A GB8928988D0 (en) | 1989-12-22 | 1989-12-22 | Lightweight composite panels |
GB8928988.8 | 1989-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991010023A1 true WO1991010023A1 (en) | 1991-07-11 |
Family
ID=10668371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1990/001982 WO1991010023A1 (en) | 1989-12-22 | 1990-12-19 | Lightweight composite panels |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB8928988D0 (en) |
WO (1) | WO1991010023A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2341345A (en) * | 1998-09-09 | 2000-03-15 | Ian Francis Wallace | Backing board |
WO2003023166A1 (en) * | 2001-09-11 | 2003-03-20 | John Spencer Hall | A fire retardant wallcovering |
US6743483B2 (en) | 1998-07-21 | 2004-06-01 | Kingspan Research And Developments Limited | Method for manufacturing a foam panel |
US7651757B2 (en) | 2005-08-31 | 2010-01-26 | Sealed Air Corporation (Us) | Floor underlayment |
FR3044584A1 (en) * | 2015-12-03 | 2017-06-09 | L'hexagone | MULTI-LAYER MATERIAL BASED ON HONEYCOMB |
WO2018019789A1 (en) * | 2016-07-25 | 2018-02-01 | Eco-Technilin Sas | Laminated composite material and method for manufacturing laminated composite material |
US11207863B2 (en) | 2018-12-12 | 2021-12-28 | Owens Corning Intellectual Capital, Llc | Acoustic insulator |
US11666199B2 (en) | 2018-12-12 | 2023-06-06 | Owens Corning Intellectual Capital, Llc | Appliance with cellulose-based insulator |
SE545334C2 (en) * | 2019-04-23 | 2023-07-04 | Re Board Tech Ab | Fire retardant board |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1804176A1 (en) * | 1967-10-25 | 1969-05-08 | Iji Te Aktiebolag | Composite panel, especially door |
US3847724A (en) * | 1972-05-15 | 1974-11-12 | Olinkraft Inc | Non-blocking foamed polymeric laminate and method |
EP0068873A2 (en) * | 1981-06-26 | 1983-01-05 | Quinton & Kaines (Holdings) Limited | Composite boards and panels |
US4720414A (en) * | 1986-06-25 | 1988-01-19 | Burga Roque F | Fire-resistant material |
DE3705937A1 (en) * | 1987-02-25 | 1988-09-08 | Bernd Seitner | Lightweight construction board |
-
1989
- 1989-12-22 GB GB898928988A patent/GB8928988D0/en active Pending
-
1990
- 1990-12-19 WO PCT/GB1990/001982 patent/WO1991010023A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1804176A1 (en) * | 1967-10-25 | 1969-05-08 | Iji Te Aktiebolag | Composite panel, especially door |
US3847724A (en) * | 1972-05-15 | 1974-11-12 | Olinkraft Inc | Non-blocking foamed polymeric laminate and method |
EP0068873A2 (en) * | 1981-06-26 | 1983-01-05 | Quinton & Kaines (Holdings) Limited | Composite boards and panels |
US4720414A (en) * | 1986-06-25 | 1988-01-19 | Burga Roque F | Fire-resistant material |
DE3705937A1 (en) * | 1987-02-25 | 1988-09-08 | Bernd Seitner | Lightweight construction board |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6743483B2 (en) | 1998-07-21 | 2004-06-01 | Kingspan Research And Developments Limited | Method for manufacturing a foam panel |
GB2341345A (en) * | 1998-09-09 | 2000-03-15 | Ian Francis Wallace | Backing board |
WO2003023166A1 (en) * | 2001-09-11 | 2003-03-20 | John Spencer Hall | A fire retardant wallcovering |
US7651757B2 (en) | 2005-08-31 | 2010-01-26 | Sealed Air Corporation (Us) | Floor underlayment |
FR3044584A1 (en) * | 2015-12-03 | 2017-06-09 | L'hexagone | MULTI-LAYER MATERIAL BASED ON HONEYCOMB |
WO2018019789A1 (en) * | 2016-07-25 | 2018-02-01 | Eco-Technilin Sas | Laminated composite material and method for manufacturing laminated composite material |
US11207863B2 (en) | 2018-12-12 | 2021-12-28 | Owens Corning Intellectual Capital, Llc | Acoustic insulator |
US11666199B2 (en) | 2018-12-12 | 2023-06-06 | Owens Corning Intellectual Capital, Llc | Appliance with cellulose-based insulator |
SE545334C2 (en) * | 2019-04-23 | 2023-07-04 | Re Board Tech Ab | Fire retardant board |
Also Published As
Publication number | Publication date |
---|---|
GB8928988D0 (en) | 1990-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4564554A (en) | Composite sheathing | |
US6286280B1 (en) | Flame retardant composite sheathing | |
JP4998084B2 (en) | Back surface moisture-proof sheet for decorative plate and decorative plate | |
EP0068873B1 (en) | Composite boards and panels | |
IE811524L (en) | Foamed plastic laminates | |
US20090113831A1 (en) | Structural insulation sheathing | |
WO1991010023A1 (en) | Lightweight composite panels | |
US20140182967A1 (en) | Acoustic decorative material | |
US3725191A (en) | Foam laminates | |
JP5422946B2 (en) | Moisture-proof sheet and warp-preventing wood board and decorative board using the same | |
US3847724A (en) | Non-blocking foamed polymeric laminate and method | |
JP3206408B2 (en) | Doors and other fittings with warp prevention | |
JPS6032989Y2 (en) | insulation board | |
JP3185675B2 (en) | Wood veneer | |
JP6720498B2 (en) | Moisture-proof sheet for building materials and decorative board | |
EP0287083B1 (en) | Foldable metallized paperboard | |
JP3945912B2 (en) | Plate | |
JP2012025168A (en) | Moistureproof sheet and decorative sheet | |
CN101980866B (en) | Damp-proof membrane, anti-warping wooden board, and veneer | |
CN220262250U (en) | Special bottom plate for passenger car | |
JPH0999402A (en) | Surface decorative laminate and surface decorative woody plate | |
CN218581003U (en) | Bamboo-wood composite waterproof wallboard | |
JP6850942B2 (en) | Non-combustible veneer | |
JP6850943B2 (en) | Non-combustible veneer | |
JPH0318178Y2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 914840 Country of ref document: FI |
|
NENP | Non-entry into the national phase in: |
Ref country code: CA |