CA1118179A - Sheet like structure - Google Patents
Sheet like structureInfo
- Publication number
- CA1118179A CA1118179A CA000344924A CA344924A CA1118179A CA 1118179 A CA1118179 A CA 1118179A CA 000344924 A CA000344924 A CA 000344924A CA 344924 A CA344924 A CA 344924A CA 1118179 A CA1118179 A CA 1118179A
- Authority
- CA
- Canada
- Prior art keywords
- membrane
- metal
- depressions
- adhesive
- substrate
- 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.)
- Expired
Links
- 239000012528 membrane Substances 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 21
- 230000001070 adhesive effect Effects 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000004411 aluminium Substances 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 4
- 239000005060 rubber Substances 0.000 claims abstract description 4
- 238000004078 waterproofing Methods 0.000 claims description 10
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 240000005428 Pistacia lentiscus Species 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/28—Metal sheet
-
- 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
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B11/08—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
- 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
-
- 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
- B32B15/06—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 natural rubber or synthetic rubber
-
- 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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
-
- 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
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Building Environments (AREA)
Abstract
ABSTRACT
A sheet like structure comprises a metal substrate which is impressed so as to have projections on one side and depressions on the other with an adhesive membrane contiguous to it on one side. The impressions in the metal allow it to be readily bent and after bending to lie flat rather than become arched. The metal is preferably aluminium and the invention allows the application therefore of a thin metal sheet, for instance on an outside surface where it will absorb ultraviolet radiation and thus protect the adhesive membrane by which it is secured to the surface to be protected.
The adhesive membrane is preferably bituminous, preferably a bitumen rubber mix.
A sheet like structure comprises a metal substrate which is impressed so as to have projections on one side and depressions on the other with an adhesive membrane contiguous to it on one side. The impressions in the metal allow it to be readily bent and after bending to lie flat rather than become arched. The metal is preferably aluminium and the invention allows the application therefore of a thin metal sheet, for instance on an outside surface where it will absorb ultraviolet radiation and thus protect the adhesive membrane by which it is secured to the surface to be protected.
The adhesive membrane is preferably bituminous, preferably a bitumen rubber mix.
Description
r~
This invention relates to sheet like structures.
Already known are preformed sheet like structures comprising a substrate for instance in the form of a film of a water impermeable plastics material, and a waterproofing pressure sensitive adhesive membrane, such as of a bîtuminous composition, in particular a rubber-bitumen mixture. Such substrates are supplied in rolls with a width of 1 metre or so and can be laid side by side, for instance on concrete, to provide a waterproof layer thereon.
While it is also Xnown to use such structures with aluminium as a substrate, it has hitherto been necessary to limit the thickness of the aluminium to very thin foils in order that the structure should not have excessive rigidity. Such excessive rigidity would give rise to arching and creasing of the aluminium based structure upon laying, and result in the ~ormation of channels which would permit the entry of water.
To avoid this problem, the structures employing an aluminium substrate and a bituminous adhesive that are known to date have been limited to widths of about 30 cm at most and employ only a thin aluminium foil, of a thickness between 0.009 mm and 0.075 mm, mostly in the region of 0.009 mm to 0.050 mm. However, structures of this nature suffer from the disadvantage that the thin aluminium substrates have low tensile strength, tear i. t
This invention relates to sheet like structures.
Already known are preformed sheet like structures comprising a substrate for instance in the form of a film of a water impermeable plastics material, and a waterproofing pressure sensitive adhesive membrane, such as of a bîtuminous composition, in particular a rubber-bitumen mixture. Such substrates are supplied in rolls with a width of 1 metre or so and can be laid side by side, for instance on concrete, to provide a waterproof layer thereon.
While it is also Xnown to use such structures with aluminium as a substrate, it has hitherto been necessary to limit the thickness of the aluminium to very thin foils in order that the structure should not have excessive rigidity. Such excessive rigidity would give rise to arching and creasing of the aluminium based structure upon laying, and result in the ~ormation of channels which would permit the entry of water.
To avoid this problem, the structures employing an aluminium substrate and a bituminous adhesive that are known to date have been limited to widths of about 30 cm at most and employ only a thin aluminium foil, of a thickness between 0.009 mm and 0.075 mm, mostly in the region of 0.009 mm to 0.050 mm. However, structures of this nature suffer from the disadvantage that the thin aluminium substrates have low tensile strength, tear i. t
- 2 - ~
easily and also possess only limited resistance to atmospheric corrosion, so limited, in fact, that it is known for such structures to be supplied with a protective coat of paint over the aluminium in order to improve the resistance to weathering..
According to the present invention there is provided a sheet like structure comprising an impressed metal substrate with an array of projections on one side and corresponding depressions on the other, the substrate being flexible and having an adhesive membrane contiguous thereto on one side.
We have found that such a structure displays hitherto un-achieved flexibility for a useful metal thickness, this being achieved by impressing the metal, so that it is formed with an array of projections on one side with corresponding depressions on the other, before laminating it with the adhesive compound.
We have found that this arrangement allows the structure, using relatively thick metal, to be laid flat while still possessing easy bending or moulding properties so as to achieve a particular shape if required.
For instance, to take one simple example, the structure can be turned through a right angle, such as must be formed between the upper surface of a flat roof and the internal vertical surface of a parapet wall, and also when tucking the structure at right angles into rebates.
The metal is a flexible metal, preferably aluminium, and the adhesive membrane is preferably a waterproofing, membrane, preferably bituminous and preferably a bitumen-rubber mix.
To provide a useful thickness of metal, while still allowing the additional flexibility offered as a result of the invention, a meta] thickness of 0.125 to ~.25 mm, preferably 0.15 mm is employed. The depths of the depressions introduced by impressing can be from 0.1 to 10 0.8 mm, preferably 0.50 mm. The adhesive should be thick enough to fill the depressions (or the gaps between the projections) and offer a smooth surface for overall adhesion to a surface to be covered. Its minimum overall thickness should therefore be 1.5 mm, that is when the maximum projection height is employed, so that over the structure its smallest thickness will be approaching 1.0 mm. However, a minimum adhesive thickness of 1.8 mm, preferably,2.5 mm is better as it increases the assurance of adhesion.
The structure of the invention may find many applications, and can be provided in a variety of widths~
The structuresare particularly useful for application to concrete surfaces, and for this application the membranes are preferably pressure sensitive, that is to say they enable the structures when pressed with normal hand pressure against a concrete surface, without any prior 7''3 treatment of the surface or membrane, to adhere to the concrete. Thus, while priming and/or initial heating may with advantage be performed, they are not essential in order to adhere the membrane to concrete.
The membrane can be a layer of the adhesive alone or the adhesive can contain reinforcing material, for example a scrim of glass fibres or an organic polymer, particularly to give the membrane mechanical strength, if desired the membrane can contain a plurality of layers of waterproofing pressure-sensitive adhesive (the adhesive being the same or different in the different layers), and the layers can be separated by reinforcing material in the form of a sheet.
The structures as produced in a factory, stored, and brought to the site for use are in the form of laminates comprising the metal, the adhesive and, usually a removable protective coating such a siliconised paper, and are conveniently in the form of rolls.
On the one hand, the structures may be up to 12 2~ cm, typically 1 metre wide when for use in covering large surfaces. On the other hand, structures of as little as 65 cms in width may be provided.
Particularly when a waterproofing facility is desired, bituminous adhesives are generally suitable except where their colour is a disadvantage. If a bituminous adhesive is used, it is preferably formed of natural or synthetic rubber, virgin or reclaimed, blended into bitumen to provide a smooth mix. The ratio by weight of bitumen to rubber is preferably from 80:20 to 95:5, especially about 90:10. Other types of contact aahesive composition may include polychloroprene, butyl rubber, oil-based mastics or compositions containing rosins or rosin derivatives. Generally, suitable compositions have softening points (measured by the Ring and Ball method) of 60 to 110~C and penetration values of 150-300 at 25C
(100 g. 5 secs~ - Institute of Petroleum method).
A wide variety of materials can be used to provide protective coatings in the structures of the invention.
Paper having a release coating thereon, e.g. siliconised paper or p~per having a coating thereon of a vinyl chloride polymer, is satisfactory. Other materials include films of organic polymers, particularly vinyl chloride polymers.
The structures of the invention can be prepared without difficulty by techniques known per se. It is preferred to use adhesives which are not solvent-based and which are heated. Thus the adhesive may be bonded to the substrate to form a uniform layer contiguous to the substrate. If it is desired to incorporate a sheet-like reinforcing layer in the membrane, this can be achieved, for example by pressing a scrim into the layer of adhesive.
The impression of the metal, which can be performed using a solid metal roller cut with suitable profiles and a resilient backing roller is preferably such that the projections and depressions, which may be generally rectangular, are regularly arranged in rows and columns.
This is found to allow notable flexibility and the facility to bend the structure so that it keeps its shape. The projections may be from 1 cm to 3 cm long and from 0 25 to 1 cm wide, preferably, being 2.2 by 0.5 cms. The margins between the depressions may be from 0.5 to 1 cm, preferably 0.7 cm wide.
In the sole Figure of the accompanying drawings is illustrated a metal roller 10 cooperating with a resilient backing roller 11. Between these rollers is fed an aluminium sheet 12 which, as a result of the action of the projections 13 on the metal roller, is impressed with the pattern just described having on its upper surface as shown depressions 14.
One application for structures of the invention is as a roofing material. ~he structures can be unrolled and adhered to such roofing undersurfaces as wood, concrete or previously applied roofing felts and can give absolute water tightness. Moreover, the structures of the invention are particularly resistant to the action of sunlight, in particular the ultraviolet co~ponent thereof, thus offering much improved weathering to conventional roofing materials. ~oreover, the metallic surface acts as a reflectant, assisting therefore in keeping the building below cool when used in hot climates.
The "bendability" imparted by the impressing of the metal means that the structure can be used as a vehicle for installing a metallic layer of significant thickness in those positions, which has not readily been possible hitherto except when lead has been used.
Further, structures according to the invention can ~ 10 be employed in such structures wherethe initially mentioned waterproofing membranes are used at present, that is in providing waterproofing membranes in concrete structures, in particular underground structures or roof or bridge decks where the structures are then covered, either by more concrete or by a roofing or surfacing material.
There~is, in fact, a particular advantage offered in the case of road and bridge building, namely that hot asphalt can be poured directly ontothe structure without deleterious effect on the waterproof seal and the asphalt will be most satisfactory keyed to the impressed surface of the structure thus reducing slipping between the road surface and the underlying structure.
Where a waterproofing property is desired, as in many of the applications envisaged, a waterproofing, preferably 2~ rubber-bitumen membrane should be employed. The thicker the membrane, the better the waterproofing properties, and a thickness of up to 0.5 cm can usefully be employed.
~, ~
easily and also possess only limited resistance to atmospheric corrosion, so limited, in fact, that it is known for such structures to be supplied with a protective coat of paint over the aluminium in order to improve the resistance to weathering..
According to the present invention there is provided a sheet like structure comprising an impressed metal substrate with an array of projections on one side and corresponding depressions on the other, the substrate being flexible and having an adhesive membrane contiguous thereto on one side.
We have found that such a structure displays hitherto un-achieved flexibility for a useful metal thickness, this being achieved by impressing the metal, so that it is formed with an array of projections on one side with corresponding depressions on the other, before laminating it with the adhesive compound.
We have found that this arrangement allows the structure, using relatively thick metal, to be laid flat while still possessing easy bending or moulding properties so as to achieve a particular shape if required.
For instance, to take one simple example, the structure can be turned through a right angle, such as must be formed between the upper surface of a flat roof and the internal vertical surface of a parapet wall, and also when tucking the structure at right angles into rebates.
The metal is a flexible metal, preferably aluminium, and the adhesive membrane is preferably a waterproofing, membrane, preferably bituminous and preferably a bitumen-rubber mix.
To provide a useful thickness of metal, while still allowing the additional flexibility offered as a result of the invention, a meta] thickness of 0.125 to ~.25 mm, preferably 0.15 mm is employed. The depths of the depressions introduced by impressing can be from 0.1 to 10 0.8 mm, preferably 0.50 mm. The adhesive should be thick enough to fill the depressions (or the gaps between the projections) and offer a smooth surface for overall adhesion to a surface to be covered. Its minimum overall thickness should therefore be 1.5 mm, that is when the maximum projection height is employed, so that over the structure its smallest thickness will be approaching 1.0 mm. However, a minimum adhesive thickness of 1.8 mm, preferably,2.5 mm is better as it increases the assurance of adhesion.
The structure of the invention may find many applications, and can be provided in a variety of widths~
The structuresare particularly useful for application to concrete surfaces, and for this application the membranes are preferably pressure sensitive, that is to say they enable the structures when pressed with normal hand pressure against a concrete surface, without any prior 7''3 treatment of the surface or membrane, to adhere to the concrete. Thus, while priming and/or initial heating may with advantage be performed, they are not essential in order to adhere the membrane to concrete.
The membrane can be a layer of the adhesive alone or the adhesive can contain reinforcing material, for example a scrim of glass fibres or an organic polymer, particularly to give the membrane mechanical strength, if desired the membrane can contain a plurality of layers of waterproofing pressure-sensitive adhesive (the adhesive being the same or different in the different layers), and the layers can be separated by reinforcing material in the form of a sheet.
The structures as produced in a factory, stored, and brought to the site for use are in the form of laminates comprising the metal, the adhesive and, usually a removable protective coating such a siliconised paper, and are conveniently in the form of rolls.
On the one hand, the structures may be up to 12 2~ cm, typically 1 metre wide when for use in covering large surfaces. On the other hand, structures of as little as 65 cms in width may be provided.
Particularly when a waterproofing facility is desired, bituminous adhesives are generally suitable except where their colour is a disadvantage. If a bituminous adhesive is used, it is preferably formed of natural or synthetic rubber, virgin or reclaimed, blended into bitumen to provide a smooth mix. The ratio by weight of bitumen to rubber is preferably from 80:20 to 95:5, especially about 90:10. Other types of contact aahesive composition may include polychloroprene, butyl rubber, oil-based mastics or compositions containing rosins or rosin derivatives. Generally, suitable compositions have softening points (measured by the Ring and Ball method) of 60 to 110~C and penetration values of 150-300 at 25C
(100 g. 5 secs~ - Institute of Petroleum method).
A wide variety of materials can be used to provide protective coatings in the structures of the invention.
Paper having a release coating thereon, e.g. siliconised paper or p~per having a coating thereon of a vinyl chloride polymer, is satisfactory. Other materials include films of organic polymers, particularly vinyl chloride polymers.
The structures of the invention can be prepared without difficulty by techniques known per se. It is preferred to use adhesives which are not solvent-based and which are heated. Thus the adhesive may be bonded to the substrate to form a uniform layer contiguous to the substrate. If it is desired to incorporate a sheet-like reinforcing layer in the membrane, this can be achieved, for example by pressing a scrim into the layer of adhesive.
The impression of the metal, which can be performed using a solid metal roller cut with suitable profiles and a resilient backing roller is preferably such that the projections and depressions, which may be generally rectangular, are regularly arranged in rows and columns.
This is found to allow notable flexibility and the facility to bend the structure so that it keeps its shape. The projections may be from 1 cm to 3 cm long and from 0 25 to 1 cm wide, preferably, being 2.2 by 0.5 cms. The margins between the depressions may be from 0.5 to 1 cm, preferably 0.7 cm wide.
In the sole Figure of the accompanying drawings is illustrated a metal roller 10 cooperating with a resilient backing roller 11. Between these rollers is fed an aluminium sheet 12 which, as a result of the action of the projections 13 on the metal roller, is impressed with the pattern just described having on its upper surface as shown depressions 14.
One application for structures of the invention is as a roofing material. ~he structures can be unrolled and adhered to such roofing undersurfaces as wood, concrete or previously applied roofing felts and can give absolute water tightness. Moreover, the structures of the invention are particularly resistant to the action of sunlight, in particular the ultraviolet co~ponent thereof, thus offering much improved weathering to conventional roofing materials. ~oreover, the metallic surface acts as a reflectant, assisting therefore in keeping the building below cool when used in hot climates.
The "bendability" imparted by the impressing of the metal means that the structure can be used as a vehicle for installing a metallic layer of significant thickness in those positions, which has not readily been possible hitherto except when lead has been used.
Further, structures according to the invention can ~ 10 be employed in such structures wherethe initially mentioned waterproofing membranes are used at present, that is in providing waterproofing membranes in concrete structures, in particular underground structures or roof or bridge decks where the structures are then covered, either by more concrete or by a roofing or surfacing material.
There~is, in fact, a particular advantage offered in the case of road and bridge building, namely that hot asphalt can be poured directly ontothe structure without deleterious effect on the waterproof seal and the asphalt will be most satisfactory keyed to the impressed surface of the structure thus reducing slipping between the road surface and the underlying structure.
Where a waterproofing property is desired, as in many of the applications envisaged, a waterproofing, preferably 2~ rubber-bitumen membrane should be employed. The thicker the membrane, the better the waterproofing properties, and a thickness of up to 0.5 cm can usefully be employed.
~, ~
Claims (13)
1. A sheet like structure comprising in combination an impressed metal substrate, such substrate having an array of projections on one side and corresponding depressions on the other side, the substrate being flexible, and an adhesive membrane contiguous with one side of the substrate.
2. A structure as claimed in claim 1, wherein the metal is aluminium.
3. A structure as claimed in claim 1, wherein the membrane is a waterproofing membrane.
4. A structure as claimed in claim 3, wherein the membrane is bituminous.
5. A structure as claimed in claim 4, wherein the membrane is a bitumen-rubber mix.
6. A structure as claimed in claim 1, wherein the metal is of a thickness of from 0.125 to 0.25 mm.
7. A structure as claimed in claim 1, wherein the depths of the depressions introduced by impression are from 0.1 to 0.8 mm.
8. A structure as claimed in claim 1, wherein the membrane is of a thickness of at least 1.8 mm.
9. A structure as claimed in claim 1, wherein the adhesive membrane is a pressure sensitive adhesive.
10. A structure as claimed in claim 1, wherein the adhesive membrane is reinforced.
11. A structure as claimed in claim 1, wherein the depressions are rectangular and arranged in rows and columns.
12. A structure as claimed in claim 1,wherein the depressions are 1 to 3 cm long and from 0.5 to 1 cm wide.
13. A structure as claimed in claim 12, wherein the margins between the depressions are from 0.5 to 1 cm in width.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7903660A GB2040797B (en) | 1979-02-02 | 1979-02-02 | Sheet-like structure |
| GB7903660 | 1979-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1118179A true CA1118179A (en) | 1982-02-16 |
Family
ID=10502907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000344924A Expired CA1118179A (en) | 1979-02-02 | 1980-02-01 | Sheet like structure |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS55137956A (en) |
| AU (1) | AU529238B2 (en) |
| CA (1) | CA1118179A (en) |
| GB (1) | GB2040797B (en) |
| HK (1) | HK57683A (en) |
| SG (1) | SG12983G (en) |
| ZA (1) | ZA80579B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9670976B2 (en) | 2012-12-07 | 2017-06-06 | R.A. Investment Management S.A.R.L. | Composite disc brake backing plate |
| US9707733B2 (en) | 2012-06-18 | 2017-07-18 | R.A. Investment Management S.A.R.L. | Process for making a laminated sheet |
| US10315382B2 (en) | 2016-12-22 | 2019-06-11 | Gripmetal Limited | Process for manufacturing textured laminate sheet |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090489A3 (en) * | 1982-03-31 | 1984-11-07 | Ph Insulation Materials Limited | Laminate |
| US5406759A (en) * | 1993-08-04 | 1995-04-18 | W. R. Grace & Co.-Conn. | Method for protecting subgrade vertical wall from stone impacts in backfill operation and laminate for accomplishing the same |
| DE29700749U1 (en) * | 1997-01-17 | 1998-05-14 | Dr. Kohl GmbH & Cie, Dachbelag- und Bautenschutzmittel-Fabrik, 46282 Dorsten | Stollenbahn for roofs and the like |
| DE29700748U1 (en) * | 1997-01-17 | 1998-05-14 | Dr. Kohl GmbH & Cie, Dachbelag- und Bautenschutzmittel-Fabrik, 46282 Dorsten | Stollenbahn for roofs and the like |
| AUPP230298A0 (en) * | 1998-03-12 | 1998-04-09 | Boral Limited | An elongate building element, sheet material for forming same and method of manufacture thereof |
| EP1399320A2 (en) * | 2001-06-15 | 2004-03-24 | Provision Legal Services Limited | Application of images to surfaces |
| GB2376556B (en) * | 2001-06-15 | 2005-02-16 | Provision Legal Services Ltd | Application of images to surfaces |
-
1979
- 1979-02-02 GB GB7903660A patent/GB2040797B/en not_active Expired
-
1980
- 1980-01-31 ZA ZA00800579A patent/ZA80579B/en unknown
- 1980-01-31 AU AU55075/80A patent/AU529238B2/en not_active Ceased
- 1980-01-31 JP JP946880A patent/JPS55137956A/en active Pending
- 1980-02-01 CA CA000344924A patent/CA1118179A/en not_active Expired
-
1983
- 1983-03-21 SG SG129/83A patent/SG12983G/en unknown
- 1983-11-17 HK HK576/83A patent/HK57683A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9707733B2 (en) | 2012-06-18 | 2017-07-18 | R.A. Investment Management S.A.R.L. | Process for making a laminated sheet |
| US9670976B2 (en) | 2012-12-07 | 2017-06-06 | R.A. Investment Management S.A.R.L. | Composite disc brake backing plate |
| US10316911B2 (en) | 2012-12-07 | 2019-06-11 | Gripmetal Limited | Composite disc brake backing plate |
| US10315382B2 (en) | 2016-12-22 | 2019-06-11 | Gripmetal Limited | Process for manufacturing textured laminate sheet |
| US11214039B2 (en) | 2016-12-22 | 2022-01-04 | Gripmetal Limited | Process for manufacturing textured laminate sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5507580A (en) | 1980-08-07 |
| GB2040797A (en) | 1980-09-03 |
| HK57683A (en) | 1983-11-25 |
| ZA80579B (en) | 1981-01-28 |
| JPS55137956A (en) | 1980-10-28 |
| GB2040797B (en) | 1982-10-27 |
| SG12983G (en) | 1985-01-11 |
| AU529238B2 (en) | 1983-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |