GB2206844A - Laminated product of aluminium and glass fibres - Google Patents
Laminated product of aluminium and glass fibres Download PDFInfo
- Publication number
- GB2206844A GB2206844A GB08815547A GB8815547A GB2206844A GB 2206844 A GB2206844 A GB 2206844A GB 08815547 A GB08815547 A GB 08815547A GB 8815547 A GB8815547 A GB 8815547A GB 2206844 A GB2206844 A GB 2206844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- laminated product
- glass
- heat
- thickness
- 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.)
- Granted
Links
- 239000004411 aluminium Substances 0.000 title claims description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 31
- 229910052782 aluminium Inorganic materials 0.000 title claims description 31
- 239000003365 glass fiber Substances 0.000 title claims description 23
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004920 heat-sealing lacquer Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920000554 ionomer Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims 1
- 239000003995 emulsifying agent Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 238000000576 coating method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal 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
- 230000005855 radiation Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
-
- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B2001/7691—Heat reflecting layers or coatings
Landscapes
- Laminated Bodies (AREA)
Description
211-1 "' 0 6 8 4 4 1 LAMINATED PRODUCT OF ALUMINIUM AND GLASS FIBRES, AND
PROCESS FOR ITS MANUFACTURE The invention relates to a laminated product of aluminium and glass fibres, and to a process for its manufacture.
From the pocket-textbook 11Kunststoffbearbeitungll (Plastics Processing) Vogel-Verlag 1981, page 194., various adhesives are known for making aluminium laminates. And on page 142 adhesives suitable for bonding glass fibre mats are mentioned.
Panels formed of glass-fibre mats bonded at one side to aluminium sheet or ribbon, are mostly used for heat insulation in houses and in motor vehicles. The aluminium ribbon serves as a vapour barrier.
Double-laminated structures, on the other hand, which have aluminium skins in the form of sheeting or ribbon. on both sides of the glass fibre mat, have special applications as outer shielding in motor vehicles. where they are used for screening the vehicle floor from the heat emitted by the exhaust pipe. in this application thermal insulation is combined with a double vapour barrier, the lower sheet of aluminium facing the road surface, also acting as a radiation reflector. this skin being thick enough to provide some structural strength.
Two vapour barriers are required, not only to make handling easier and to serve structural requirements butalso to prevent, or at least inhibit to some extent. penetration from the vehicle floor into the glass fibre heat insulation. reducing its insulating properties.
Invasion of moisture at the edges of the ribbon is prevented by mechanical jointing, for example by forming rolled flanges.
1 2 In motor vehicles the following requirements must be satisfied: 1. Deformability It must be possible to deform the laminated product easily, to allow it to follow the often very complex contours of the body and structure of the vehicle. 2. Heat insulation A very low rate of heat transfer is often required, in order to insulate neighbouring structures from each other. 3. Sound damping Acoustic insulation of certain structures in a motor vehicle is necessary, to reduce noise in the environment. 4. corrosion resistance This is becoming increasingly important in order to lengthen the life of the vehicle. particularly where direct contact occurs with wet corroding substances such as brake dust and salt scattered on the roads. 5. Pollution of the environment When conventional adhesives are used for bonding the elements of a laminate together, such as aluminium bonded to glass-fibre mat. a considerable emission of solvents can occur by solvent evaporation from the adhesive. And when the vehicle is in operation, particularly at high temperatures, the emission of decomposition products from the adhesive, and from the heat-insulation mat itself, must be reduced to a minimum.
The laminated product of the invention is intended substantially to satisfy these requirements, con sidered individually or all together. In particular, the intentio'n in the present invention is to provide aluminium laminated products which in large measure satisfy all five of the above requirements and are suitable for providing good heat insulation at temperatures up to 5000C.
The problem is solved, according to the invention, by the characteristics claimed in the claims.
t, 1 3 Broadly stated. this invention provides a laminated product made of aluminium and glass fibres. in which a glass-fibre mat of thickness 3 to 10 mm is sandwiched between a thin aluminium sheet or ribbon of thickness 0.05 to 0.25 mm and a thicker aluminium sheet or ribbon of thickness 0.4 to 0.8 mm, the glass fibre being bonded to the aluminium skins by a heatsealing lacquer in the form of a polyethylene ionomer resin, the thickness of the-resin layer corresponding to 3 to 13 grams of resin per square metre of surface.
The term "glass-fibre mats" includes glass-fibre fleece, mats with transverse strands, glass-needle mats and glass-fibre woven mats. The fibres are used untreated and free from adhesive coatings. The glass fibres are bonded to the aluminium ribbon only by heat-contact sealing of the thin layer of heat-sealing lacquer.
The use of an ionomer resin provides high adhesion and a "hot-tack" effect. i.e. the glass fibres become embedded in the thermoplastic layer even though it is quite thin. The term "hot-tack" describes a high adhesion obtained by heat-sealing into molten lacquer.
The glass-fibre fleece used for heat insulation has a fibre diameter of 8 to 11 micrometres.
The special action of the adhesive of the invention is a combination of assymetric coating of the metal surfaces. sandwiched between which is a mat of glass-fibre fleece of a specified bulk density. thickness and resiliency. i.e. ability to return elastically to its original shape. The thicknesses of the three layers, thin aluminium - fleece thicker aluminium, is originally 1 to 30 to'3.5. Formation of the laminated product reduces the thickness of the fleece to 30 to 40% of its original thickness. The product transmits applied deformation forces effectively. allowing it to be deep drawn, deep-drawn with stretching, bent to a contour and edged with a rolled bead or flange.
4 After completion of the deformation process the fleece returns elastically to its original thickness, i.e. the aluminium surfaces are spaced apart once more by the same distance. and full heat insulation is restored.
The laminated product can be manufactured very conveniently as a continous ribbon of product.
First. the aluminium ribbons are coated with resin by the coil-coating method. The heat-sealing dispersion is rolled onto the aluminium surfaces and in-line dried. The three layers of the laminate can then be brought together, for example as a continously travelling ribbon of product. and combined by heat-contact sealing. Within a few seconds the lacquer is heated to above 1400C and activated by slight applied pressure.
The aluminium ribbon can be given hollow chambers by a press operation. Subsequently the laminated product can be deformed without the resulting stretching changing the cross section of the laminate. The hollow chambers have cross sections of only a few square millimeters, preferably 2 to 4 mm 2 and are spaced apart by 1 to 2 mm.
The manufacturing process hardly pollutes the environment. because there is no release of solvents to the ambient atmosphere.
The invention will now be described in greater detail with the help of an example.
In the drawing the thin aluminium skin formed from sheet or ribbon, is shown at 1, the thicker one at 2 and the layer of glass-fibre fleece at 3. The two coatings of adhesive are shown at 4 and 5.
Claims (9)
1. A laminated product made of aluminium and glass fibres, characterised in that a glass-fibre mat of thickness 3 to 10 mm is sandwiched between a thin skin of aluminium ribbon of thickness 0.05 to 0.25 mm and a thickerskin of aluminium ribbon of thickness 0.4 to 0.8 mm, the glass fibre being bonded to the aluminium skins by a heat-sealing lacquer in the form of a polyethylene ionomer resin, the thickness of the resin layer corresponding to 3 to 13 grams of resin per square metre of surface.
2. A laminated product as claimed in Claim 1, characterised in that the heat-sealing lacquer is in the form of a dried aqueous dispersion.
3. A laminated product as claimed in one of the above claims. characterised in that the dispersion consists of an alkaline ammoniacal saponified secondary dispersion using anionic emulsifiers.
4. A laminated product as claimed in one of the above claims. characterised in that the dispersion contains 20 to 50% of solids, the viscosity being 100 to 1000 mPas. the pH being 9.8 to 10.5 and the particle size 1 to 4pm.
5. A laminated product as claimed in-one of the above claims, characterised in that the thin skin is of cold-hardened pure aluminium, the thicker skin being of soft pure aluminium.
6 6. A laminated product as claimed in one of the above claims, characterised in that the glass mat has an original bulk density of 90 to 180 kg/M 3.
7. A laminated product as claimed in one of the above claims. characterised in that the thin aluminium skin has pressed-out hollow chambers.
8. A process for manufacturing a laminated product of the kind claimed in the above claims, characterised in that the inner surfaces of the two aluminium skins are each coated with the heat-sealing lacquer, after which an untreated glass-fibre mat is introduced between them. after which the bond is made by heat-sealing for 1 to 20 seconds at a sealing temperature of 140 to 1700C, the applied pressure being 2 to 10 bar.
9. A process as claimed in Claim 8. characterised in that the heatsealing dispersion is applied to the aluminium surfaces by the coilcoating process.
Published 19B8 at. The Patent Office. State Hmise. 66.71 High Rclborn. London WC1R 4TP. Further copies may be obtained frorn The Patent office_ Sales Branch, St Mary Cray. Orpington. Kent BP-5 3RD Printed by Multiplex techniques ltd. St Mary Crky. Kent Con. 1,87.
r_ 1 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873721715 DE3721715A1 (en) | 1987-07-01 | 1987-07-01 | COMPOSITE MATERIAL FROM ALUMINUM AND FIBERGLASS MATS AND METHOD FOR THE PRODUCTION THEREOF |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8815547D0 GB8815547D0 (en) | 1988-08-03 |
| GB2206844A true GB2206844A (en) | 1989-01-18 |
| GB2206844B GB2206844B (en) | 1991-03-27 |
Family
ID=6330661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8815547A Expired - Lifetime GB2206844B (en) | 1987-07-01 | 1988-06-30 | Laminated product of aluminium and glass fibres, and process for its manufacture |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS6422542A (en) |
| KR (1) | KR890001732A (en) |
| BE (1) | BE1002450A3 (en) |
| DE (1) | DE3721715A1 (en) |
| ES (1) | ES2007247A6 (en) |
| FR (1) | FR2617430B3 (en) |
| GB (1) | GB2206844B (en) |
| IT (1) | IT1219408B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015113633A1 (en) * | 2015-08-18 | 2017-02-23 | Odenwald-Chemie Gmbh | Soundproofing element and method for acoustic improvement |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9113436U1 (en) * | 1991-10-29 | 1992-03-05 | Prignitz, Herbert, 2000 Hamburg | Insulation material as a panel or roll-over for new buildings and those in need of renovation |
| DE19705511C5 (en) | 1997-02-13 | 2005-07-14 | Faist Automotive Gmbh & Co. Kg | Heat shield for components made of thermoplastic material |
| DE10202232A1 (en) * | 2002-01-21 | 2003-08-07 | Brocke Kg I B S | Screen for the motor and exhaust pipe zone of vehicles comprises at least one fiber composite layer, at least one layer of glass fiber fleece or ceramic fleece, and at least one aluminum layer |
| US8048519B2 (en) * | 2007-12-17 | 2011-11-01 | E.I. Du Pont De Nemours And Company | Highly flame retardant panels |
| JP2010065564A (en) * | 2008-09-09 | 2010-03-25 | Kobe Steel Ltd | Heat ray shielding cover |
| EP2177352A1 (en) | 2008-10-08 | 2010-04-21 | Hydro Aluminium Deutschland GmbH | Compound material for noise and heat insulation and method for producing same |
| DE202009012819U1 (en) | 2009-09-24 | 2011-02-10 | Matecs Sp. Z.O.O. | Plant for the production of fiber fleece mats and fiber fleece produced therewith |
| DE202010007976U1 (en) | 2010-07-02 | 2010-10-07 | Bachmann, Arnd | Vapor barrier layer and multi-layer construction with such a vapor barrier layer |
| DE202016103029U1 (en) | 2016-06-07 | 2016-08-19 | Arnd Bachmann | Multi-layer vapor barrier |
| FR3080566B1 (en) * | 2018-04-30 | 2021-01-08 | Formit Tech | METHOD OF MANUFACTURING A TECHNICAL TEXTILE INCLUDING A METAL REINFORCEMENT AND A TEXTILE PRODUCT OBTAINED BY THE IMPLEMENTATION OF THIS PROCESS |
| US20230407014A1 (en) * | 2020-11-06 | 2023-12-21 | Chukyo Yushi Co., Ltd. | Aqueous dispersion, coating liquid containing this aqueous dispersion, method for producing polylactic acid film using this coating liquid, and sheet material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998990A (en) * | 1971-10-11 | 1976-12-21 | Asahi-Dow Limited | Substrates adhered via ionomer resins |
| FR2413971A1 (en) * | 1978-01-04 | 1979-08-03 | Isolbat | Fire-resistant building panels or partitions - of aluminium covered nonwoven glass board opt. bonded by melt adhesive coatings |
| EP0014522A1 (en) * | 1979-01-26 | 1980-08-20 | Imperial Chemical Industries Plc | Formable fibre-reinforced metal laminates and methods for making them |
| DE3018965A1 (en) * | 1980-05-17 | 1981-11-26 | Klaus 4630 Bochum Röthel | CARRIER MATERIAL FOR AN INSULATING ELEMENT |
-
1987
- 1987-07-01 DE DE19873721715 patent/DE3721715A1/en not_active Withdrawn
-
1988
- 1988-06-27 JP JP63157031A patent/JPS6422542A/en active Pending
- 1988-06-28 BE BE8800735A patent/BE1002450A3/en not_active IP Right Cessation
- 1988-06-28 KR KR1019880007842A patent/KR890001732A/en not_active Application Discontinuation
- 1988-06-30 ES ES8802054A patent/ES2007247A6/en not_active Expired
- 1988-06-30 FR FR888808829A patent/FR2617430B3/en not_active Expired
- 1988-06-30 IT IT67616/88A patent/IT1219408B/en active
- 1988-06-30 GB GB8815547A patent/GB2206844B/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015113633A1 (en) * | 2015-08-18 | 2017-02-23 | Odenwald-Chemie Gmbh | Soundproofing element and method for acoustic improvement |
| DE102015113633B4 (en) * | 2015-08-18 | 2020-10-29 | Odenwald-Chemie Gmbh | Soundproofing element and method for acoustic improvement |
Also Published As
| Publication number | Publication date |
|---|---|
| KR890001732A (en) | 1989-03-28 |
| GB2206844B (en) | 1991-03-27 |
| IT1219408B (en) | 1990-05-11 |
| ES2007247A6 (en) | 1989-06-01 |
| IT8867616A0 (en) | 1988-06-30 |
| FR2617430B3 (en) | 1989-06-16 |
| BE1002450A3 (en) | 1991-02-12 |
| FR2617430A3 (en) | 1989-01-06 |
| DE3721715A1 (en) | 1989-01-12 |
| JPS6422542A (en) | 1989-01-25 |
| GB8815547D0 (en) | 1988-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930630 |