CA2276663A1 - Rigid coloured article - Google Patents
Rigid coloured article Download PDFInfo
- Publication number
- CA2276663A1 CA2276663A1 CA002276663A CA2276663A CA2276663A1 CA 2276663 A1 CA2276663 A1 CA 2276663A1 CA 002276663 A CA002276663 A CA 002276663A CA 2276663 A CA2276663 A CA 2276663A CA 2276663 A1 CA2276663 A1 CA 2276663A1
- Authority
- CA
- Canada
- Prior art keywords
- article
- layer
- sheet
- mould
- skin
- 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
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/78—Moulding material on one side only of the preformed part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Glass Compositions (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Graft Or Block Polymers (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A coloured rigid article is made by vacuum forming a layered sheet shaped to form the skin of the article.
Description
RIGID COLOURED ARTICLE
The invention relates to a method of making coloured rigid articles and to the articles themselves. While the invention can be applied to a wide range of articles it is seen to particular advantage in making panels for motorised machines/vehicles and so it will be described in relation to such items, with the reminder that the invention is of wider applicability.
Some vehicles, especially heavy use industrial vehicles such as earth diggers are prone to damage. While the vehicles can have metal panels as an exterior covering it would be more economic if the panels were made of a less expensive more robust material.
Plastics are obvious candidate materials but these do not have an attractive colour. EP-A-0266107 discloses an article said to be useful as an automobile body panel and comprising a cast weatherable polymer film made up of a pigmented acrylic layer joined by adhesive to a pvc film and supported on a polymer layer. The article is made by injecting curable polymer behind the film placed in a mould with the pvc film facing innermost. There is a need for a method of making a rigid impact resistant panel which has an attractive bright colour.
In one aspect the invention provides a method of making a coloured rigid article, the method comprising:
The invention relates to a method of making coloured rigid articles and to the articles themselves. While the invention can be applied to a wide range of articles it is seen to particular advantage in making panels for motorised machines/vehicles and so it will be described in relation to such items, with the reminder that the invention is of wider applicability.
Some vehicles, especially heavy use industrial vehicles such as earth diggers are prone to damage. While the vehicles can have metal panels as an exterior covering it would be more economic if the panels were made of a less expensive more robust material.
Plastics are obvious candidate materials but these do not have an attractive colour. EP-A-0266107 discloses an article said to be useful as an automobile body panel and comprising a cast weatherable polymer film made up of a pigmented acrylic layer joined by adhesive to a pvc film and supported on a polymer layer. The article is made by injecting curable polymer behind the film placed in a mould with the pvc film facing innermost. There is a need for a method of making a rigid impact resistant panel which has an attractive bright colour.
In one aspect the invention provides a method of making a coloured rigid article, the method comprising:
i) applying a layer of impact resistant pigmented material to a sheet of impact resistant thermoplastic polymer to form the precursor of the skin of the article;
ii) vacuum forming the layered sheet to a predetermined shape appropriate to the skin of the article.
iii) contacting the shaped layered sheet with a shaped shell in a pressure and temperature resistant mould with the pigmented layer contacting a wall of the shell;
iv) supplying a curable resin composition to contact the exposed face of the sheet, closing the mould and allowing or causing the composition to cure, whereby the cured composition has the same shape as the sheet, and v) removing the formed coloured rigid article.
The skin should be capable of being thermoformed (i. e. under vacuum) and have a suitable colour and gloss. The skin should be weather and impact resistant and have stability to ultraviolet light. If required, the skin should be capable of bonding to the resin substrate. The thermoplastic layer may be acrylonitrilebutadienestyrene CABS);
ii) vacuum forming the layered sheet to a predetermined shape appropriate to the skin of the article.
iii) contacting the shaped layered sheet with a shaped shell in a pressure and temperature resistant mould with the pigmented layer contacting a wall of the shell;
iv) supplying a curable resin composition to contact the exposed face of the sheet, closing the mould and allowing or causing the composition to cure, whereby the cured composition has the same shape as the sheet, and v) removing the formed coloured rigid article.
The skin should be capable of being thermoformed (i. e. under vacuum) and have a suitable colour and gloss. The skin should be weather and impact resistant and have stability to ultraviolet light. If required, the skin should be capable of bonding to the resin substrate. The thermoplastic layer may be acrylonitrilebutadienestyrene CABS);
an ester of acryionitrilestyreneacrylic(ASA); polycarbonate and derivatives thereof;
impact modified unplasticised polyvinylchloride (PVC-u); and uv-resistant high impact polystyrene (HIPS). Most preferably the impact resistant thermoplastic polymer is AB S and the pigmented layer is a glossy pigmented layer in a plastics Garner, e. g. a polyacrylate. Most preferably the sheet and layer are a coextrusion which is available under the trade mark "IRIDON".
The formed article will need to be secured to a frame or companion articles and it is an advantageous feature of the invention that for this purpose a fixing element may be anchored in the curable composition. The shell may be shaped to engage the free end of the fixing elements.
The sheet is preferably formed of ABS, i.e. acrylonitrilebutadienestyrene, and the polyacrylate Garner for the pigment is preferably polymethylinethacrylate. The ABS is preferably a high impact form having the following combination of properties:
an Izod impact of 380-420 J/m at 23°C; a tensile strength of 30-40 MPa; a density of about 1.1 gms/cc.
The coextrusion sheet is first vacuum formed, i. e. thermoformed, in a male mould to nave the desired profile. This is then placed in a shell which most preferably is distortion resistant, i.e. resistant to the pressure and temperatures arising when the resin composition is cured in the mould. Most preferably the shell comprises shell halves of cured epoxy GRP (which can be made to particularly tight tolerances).
impact modified unplasticised polyvinylchloride (PVC-u); and uv-resistant high impact polystyrene (HIPS). Most preferably the impact resistant thermoplastic polymer is AB S and the pigmented layer is a glossy pigmented layer in a plastics Garner, e. g. a polyacrylate. Most preferably the sheet and layer are a coextrusion which is available under the trade mark "IRIDON".
The formed article will need to be secured to a frame or companion articles and it is an advantageous feature of the invention that for this purpose a fixing element may be anchored in the curable composition. The shell may be shaped to engage the free end of the fixing elements.
The sheet is preferably formed of ABS, i.e. acrylonitrilebutadienestyrene, and the polyacrylate Garner for the pigment is preferably polymethylinethacrylate. The ABS is preferably a high impact form having the following combination of properties:
an Izod impact of 380-420 J/m at 23°C; a tensile strength of 30-40 MPa; a density of about 1.1 gms/cc.
The coextrusion sheet is first vacuum formed, i. e. thermoformed, in a male mould to nave the desired profile. This is then placed in a shell which most preferably is distortion resistant, i.e. resistant to the pressure and temperatures arising when the resin composition is cured in the mould. Most preferably the shell comprises shell halves of cured epoxy GRP (which can be made to particularly tight tolerances).
Advantageously the shell halves are located in a mould which is then held m a pressure resistant press.
The shaped sheet is laid in the shell half with the acrylate layer face down, so that the shaped ABS sheet then acts as a former for the curable resin composition.
Because the shaped sheet contacts the inner layer of the mould a mould release agent is not needed.
It is a much preferred feature of the invention that fibres are present to reinforce the curable composition. Preferably the fibres have tensile and ductile properties. Such fibres may be loose but preferably take the form of a mat. While the fibres may be selected from a wide range of materials, e.g. metals, non-metals, composites such as titanium, carbon, aluminosilicate, plastics such as polypropylene, it is preferred to use glass fibres. They may be bonded together in the mat in an emulsion binder, selected to be compatible with the curable composition. The fibre material is preferably VETROTEX MS available from Vetrotex (UK) Ltd.
The resin composition should be selected to have mechanical properties according to the intended end use of the article. A high strength to weight ratio is preferred, together with compatibility with the other components. Optionally the resin composition may be selected for sound attenuation, flowability (to allow the moulding of complex shapes); and be capable of being pigmented and colour matched.
The resin composition may be selected from a range of curable materials such as PVC, acrylic polymer, polyethylene, polyester, polyurethane and the like. The composition is preferably adapted to form a rigid form, the strengths of which are selected appropriate to the intended end use. Most preferably the composition is selected to form a formed polyurethane in which case it comprises a polyol component, an isocyanate component and a catalyst. Other ingredients may be present such as fillers, blowing agents, extenders, colouring agents; and the like. The polyol may be based on a polyester, polyepoxy, polyethers, polybutadiene; the isocyanate may be methyldiisocyanate, napthalene diisocyanate, tolylene diisocyanate or the like. It is a much preferred feature of the invention that the curable resin composition is a polyurethane because that will provide a rigid article in a short time period, e.g. less than five minutes and typically from I .5 to about three minutes. As a result the articles may be made guickly and on a mass production basis.
It is a much preferred feature of the invention that a fixing element is anchored in the resin composition before curing. Such element may be a threaded bolt the head of which is anchored in the composition. Several such elements may be included.
Curing is then initiated chemically or by temperature or other radiation.
Foaming may be caused in known manner.
In another aspect the invention provides a method of making a coloured rigid article comprising the steps of placing a shaped skin having a pigmented surface in a shaped shell in a pressure and temperature resistant mould with the pigmented surface contacting a wall of the shell followed by a curing resin behind the skin characterised in that the skin is a vacuum formed co-extrusion of a layer of an impact resistant pigmented layer and a sheet of impact resistant thermoplastic polymer In other aspects the invention provides a rigid shaped article comprising an outer layer of pigmented impact resistant material, a sheet of impact resistant thermoplastic polymer and an inner layer of foamed plastics; preferably the article includes fibre reinforcement in the foamed plastics layer and preferably the article including a fixing element anchored in the foamed plastics layer.
In order that the invention may be well understood it will now be described by way of example only, with reference to the accompanying diagrammatic drawings, in which:
Figure 1 is a side elevation of a coextrusion; and Figure 2 is a vertical section through a mould containing shell halves and before curing of the resin composition.
A coextrusion 1 comprising an acrylonitrile butadiene styrene 1 A and a layer of pigmented impact modified polymethacrylate 1B is thermo or vacuum formed in a suitable vacuum mould (not shown) at about 160° to 170°C to a required profile P of the skin of the intended article. The coextrusion is selected according to the properties required for the end use; in a preferred case the coextrusion has a density of about 1.1 gms/cc and a thickness of about 2 mm; a tensile strength of about 30 to about 40 MPa and a flexural strength of about 50 to about 55 MPa, and a flexural modulus of about 2.2 Gpa. Typically the coextrusion will have a Vicat softening temperature of about 97 to about 101°C.
A rigid foam backing B is applied to the profile P in a mould shown in Figure 1. The mould comprises a base 2 and a lid 3; and has side walls 4. The sidewalls are in bottom and top halves 4A, 4B respective shaped to hold the free edges of the profile P.
A paste of a self setting filler composition 5, e.g. a filled plastics is placed in the lower half of the mould box to form the intended shape M. A lower shell half H1 is placed on the setting paste. The lower shelf half H 1 has a shaped upper wall against which the profile P is placed (with the layer 1 B facing downwards), and pipes 6 at the rear through which a heating medium flows. The shell half is made of glass reinforced epoxy plastics or the like to tight tolerances, so that the profile is an accurate fit, and will not move during the moulding step. A mat of VETROTEX material (not shown) is placed and then uncured polyurethane composition 7 is poured on to the upper, i. e.
backing face 1 A of the profile P. An insert 8 is placed at one end. A top shell half H2 is placed on top followed by more of the paste 5, and then the lid 3 is placed in position. The whole is put in a hydraulic press, not shown. Hot water is passed through the pipes 6, to provide heat to cause the polyurethane composition to foam and cure. This takes about two minutes. The water supply is shut off, and the mould M removed from the press and dismantled. The profile P with its high density rigid foam backing is removed and trimmed to size and shape. In this way a highly rigid panel has been made with a glossy paint finish and at low cost. The shell halves are reusable.
The invention is not limited to the embodiment shown. The coextrusion may have a shaped face to key to the foam layer.
The shaped sheet is laid in the shell half with the acrylate layer face down, so that the shaped ABS sheet then acts as a former for the curable resin composition.
Because the shaped sheet contacts the inner layer of the mould a mould release agent is not needed.
It is a much preferred feature of the invention that fibres are present to reinforce the curable composition. Preferably the fibres have tensile and ductile properties. Such fibres may be loose but preferably take the form of a mat. While the fibres may be selected from a wide range of materials, e.g. metals, non-metals, composites such as titanium, carbon, aluminosilicate, plastics such as polypropylene, it is preferred to use glass fibres. They may be bonded together in the mat in an emulsion binder, selected to be compatible with the curable composition. The fibre material is preferably VETROTEX MS available from Vetrotex (UK) Ltd.
The resin composition should be selected to have mechanical properties according to the intended end use of the article. A high strength to weight ratio is preferred, together with compatibility with the other components. Optionally the resin composition may be selected for sound attenuation, flowability (to allow the moulding of complex shapes); and be capable of being pigmented and colour matched.
The resin composition may be selected from a range of curable materials such as PVC, acrylic polymer, polyethylene, polyester, polyurethane and the like. The composition is preferably adapted to form a rigid form, the strengths of which are selected appropriate to the intended end use. Most preferably the composition is selected to form a formed polyurethane in which case it comprises a polyol component, an isocyanate component and a catalyst. Other ingredients may be present such as fillers, blowing agents, extenders, colouring agents; and the like. The polyol may be based on a polyester, polyepoxy, polyethers, polybutadiene; the isocyanate may be methyldiisocyanate, napthalene diisocyanate, tolylene diisocyanate or the like. It is a much preferred feature of the invention that the curable resin composition is a polyurethane because that will provide a rigid article in a short time period, e.g. less than five minutes and typically from I .5 to about three minutes. As a result the articles may be made guickly and on a mass production basis.
It is a much preferred feature of the invention that a fixing element is anchored in the resin composition before curing. Such element may be a threaded bolt the head of which is anchored in the composition. Several such elements may be included.
Curing is then initiated chemically or by temperature or other radiation.
Foaming may be caused in known manner.
In another aspect the invention provides a method of making a coloured rigid article comprising the steps of placing a shaped skin having a pigmented surface in a shaped shell in a pressure and temperature resistant mould with the pigmented surface contacting a wall of the shell followed by a curing resin behind the skin characterised in that the skin is a vacuum formed co-extrusion of a layer of an impact resistant pigmented layer and a sheet of impact resistant thermoplastic polymer In other aspects the invention provides a rigid shaped article comprising an outer layer of pigmented impact resistant material, a sheet of impact resistant thermoplastic polymer and an inner layer of foamed plastics; preferably the article includes fibre reinforcement in the foamed plastics layer and preferably the article including a fixing element anchored in the foamed plastics layer.
In order that the invention may be well understood it will now be described by way of example only, with reference to the accompanying diagrammatic drawings, in which:
Figure 1 is a side elevation of a coextrusion; and Figure 2 is a vertical section through a mould containing shell halves and before curing of the resin composition.
A coextrusion 1 comprising an acrylonitrile butadiene styrene 1 A and a layer of pigmented impact modified polymethacrylate 1B is thermo or vacuum formed in a suitable vacuum mould (not shown) at about 160° to 170°C to a required profile P of the skin of the intended article. The coextrusion is selected according to the properties required for the end use; in a preferred case the coextrusion has a density of about 1.1 gms/cc and a thickness of about 2 mm; a tensile strength of about 30 to about 40 MPa and a flexural strength of about 50 to about 55 MPa, and a flexural modulus of about 2.2 Gpa. Typically the coextrusion will have a Vicat softening temperature of about 97 to about 101°C.
A rigid foam backing B is applied to the profile P in a mould shown in Figure 1. The mould comprises a base 2 and a lid 3; and has side walls 4. The sidewalls are in bottom and top halves 4A, 4B respective shaped to hold the free edges of the profile P.
A paste of a self setting filler composition 5, e.g. a filled plastics is placed in the lower half of the mould box to form the intended shape M. A lower shell half H1 is placed on the setting paste. The lower shelf half H 1 has a shaped upper wall against which the profile P is placed (with the layer 1 B facing downwards), and pipes 6 at the rear through which a heating medium flows. The shell half is made of glass reinforced epoxy plastics or the like to tight tolerances, so that the profile is an accurate fit, and will not move during the moulding step. A mat of VETROTEX material (not shown) is placed and then uncured polyurethane composition 7 is poured on to the upper, i. e.
backing face 1 A of the profile P. An insert 8 is placed at one end. A top shell half H2 is placed on top followed by more of the paste 5, and then the lid 3 is placed in position. The whole is put in a hydraulic press, not shown. Hot water is passed through the pipes 6, to provide heat to cause the polyurethane composition to foam and cure. This takes about two minutes. The water supply is shut off, and the mould M removed from the press and dismantled. The profile P with its high density rigid foam backing is removed and trimmed to size and shape. In this way a highly rigid panel has been made with a glossy paint finish and at low cost. The shell halves are reusable.
The invention is not limited to the embodiment shown. The coextrusion may have a shaped face to key to the foam layer.
Claims (18)
1. A method of making a coloured rigid article, the method comprising:
i) applying a layer of impact resistant pigmented material to a sheet of impact resistant thermoplastic polymer to form the precursor of the skin of the article;
ii) vacuum forming the layer sheet to a predetermined shape appropriate to the skin of the article;
iii) placing the shaped skin precursor in a shaped shell in a pressure and temperature resistant mould with the pigmented layer contacting a wall of the shell;
iv) supplying a curable resin composition to the exposed face of the sheet, closing the mould and allowing or causing the composition to cure whereby the cured composition has the same shape as the sheet; and v) removing the formed coloured rigid article from the mould.
i) applying a layer of impact resistant pigmented material to a sheet of impact resistant thermoplastic polymer to form the precursor of the skin of the article;
ii) vacuum forming the layer sheet to a predetermined shape appropriate to the skin of the article;
iii) placing the shaped skin precursor in a shaped shell in a pressure and temperature resistant mould with the pigmented layer contacting a wall of the shell;
iv) supplying a curable resin composition to the exposed face of the sheet, closing the mould and allowing or causing the composition to cure whereby the cured composition has the same shape as the sheet; and v) removing the formed coloured rigid article from the mould.
2. A method according to Claim 1, wherein the layer and the sheet are formed as a coextrusion.
3. A method according to Claim 1 or 2, including adding at least one fixing element to the curable composition whereby the fixing element is anchored in the formed article.
4. A method according to any preceding Claim, including the step of including fibres in the curable resin composition.
5. A method according to Claim 4, wherein the fibres are coated with a binder.
6. A method according to Claim 4 or 5, wherein the fibres are of glass, metal or the like.
7. A method according to Claim 6, wherein the fibres are in the form a of a mat.
8. A method according to any preceding Claim, wherein the curable resin composition is adapted to form a foam.
9. A method according to Claim 8, wherein the curable resin is adapted to form a polyurethane foam.
10. A method according to any preceding Claim, wherein the curable resin composition is adapted to cure and foam in less than five minutes.
11. A method according to Claim 10, wherein the resin composition is adapted to cure in from about one minute to about three minutes.
12. A method according to any preceding Claim wherein the shell is formed of GRP or the like.
13. A method according to any preceding Claim, wherein the shell located in a pressure resistant mould.
14. A method according to Claim 13, wherein the mould is made of is cast aluminium.
15. A method of making a coloured rigid article comprising the steps of placing a shaped skin having a pigmented surface in a shaped shell in a pressure and temperature resistant mould with the pigmented surface contacting a wall of the shell followed by a curing resin behind the skin characterised in that the skin is a vacuum formed co-extrusion of a layer of an impact resistant pigmented layer and a sheet of impact resistant thermoplastic polymer.
16. A rigid shaped article comprising an outer layer of pigmented impact resistant material, a sheet of impact resistant thermoplastic polymer and an inner layer of foamed plastics.
17. An article according to Claim 16, including fibre reinforcement in the foamed plastics layer.
18. An article according to Claim 16 or 17, including a fixing element anchored in the foamed plastics layer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9700071.5 | 1997-01-03 | ||
| GB9700071A GB2320908B (en) | 1997-01-03 | 1997-01-03 | Rigid coloured article |
| PCT/GB1998/000009 WO1998029233A1 (en) | 1997-01-03 | 1998-01-05 | Rigid coloured article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2276663A1 true CA2276663A1 (en) | 1998-07-09 |
Family
ID=10805524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002276663A Abandoned CA2276663A1 (en) | 1997-01-03 | 1998-01-05 | Rigid coloured article |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1011957A1 (en) |
| JP (1) | JP2001507298A (en) |
| CN (1) | CN1243472A (en) |
| AU (1) | AU721660B2 (en) |
| BR (1) | BR9806830A (en) |
| CA (1) | CA2276663A1 (en) |
| CZ (1) | CZ238599A3 (en) |
| GB (1) | GB2320908B (en) |
| HU (1) | HUP0000864A2 (en) |
| IL (1) | IL130699A0 (en) |
| PL (1) | PL334441A1 (en) |
| SK (1) | SK91299A3 (en) |
| TR (1) | TR199901970T2 (en) |
| WO (1) | WO1998029233A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10120912A1 (en) | 2001-04-27 | 2002-10-31 | Basf Ag | Composite components made of polyurethane and their use in exterior body parts |
| DE10161155B4 (en) * | 2001-12-12 | 2007-08-09 | Basf Ag | Deposit containing polyurethane composite components |
| CN102371683A (en) * | 2010-08-19 | 2012-03-14 | 李启文 | Polyurethane composite material and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2708288A (en) * | 1950-05-26 | 1955-05-17 | Frank W Fuller | Method and apparatus for molding plastic |
| US4065337A (en) * | 1973-04-18 | 1977-12-27 | Coast Catamaran Corporation | Molding process |
| DE2548318A1 (en) * | 1975-10-29 | 1977-05-05 | Theysohn Friedrich Fa | METHOD AND DEVICE FOR COATING FILM MATERIAL |
| DE3127253A1 (en) * | 1980-07-16 | 1982-06-16 | Comind S.p.A. Azienda Stars, Villastellone, Torino | SELF-SUPPORTING ELEMENT FOR THE EQUIPMENT OF THE INTERIOR OF MOTOR VEHICLES, IN PARTICULAR INSTRUMENT COVER, AND METHOD FOR THE PRODUCTION THEREOF |
| JPS60176740A (en) * | 1984-02-22 | 1985-09-10 | Hitachi Chem Co Ltd | Method of forming pattern on vacuum-formed item |
| JPS6131214A (en) * | 1984-07-23 | 1986-02-13 | Toyota Motor Corp | Manufacture of vehicle decorating lace |
| JPS62181114A (en) * | 1986-02-06 | 1987-08-08 | Meiwa Sangyo Kk | Manufacture of composite molded form |
| CA1292603C (en) * | 1986-10-28 | 1991-12-03 | Thomas M. Ellison | Injection molded plastic article with integral weatherable pigmented film surface |
| US4698277A (en) * | 1986-11-12 | 1987-10-06 | General Electric Company | High-temperature laminated insulating member |
| DE68924702T2 (en) * | 1988-12-22 | 1996-05-23 | Basf Corp | Process for producing a coated, laminated motor vehicle or vehicle part. |
| US4983247A (en) * | 1989-08-07 | 1991-01-08 | General Electric Company | Method for producing resin rich surface layer on composite thermoplastic material |
| KR930702144A (en) * | 1991-07-18 | 1993-09-08 | 모리히데오 | Manufacturing method of multilayer molded article |
| JPH05147170A (en) * | 1991-12-02 | 1993-06-15 | Toppan Printing Co Ltd | Multi-layered plastic molded article and manufacture thereof |
| TW224443B (en) * | 1992-07-31 | 1994-06-01 | Minnesota Mining & Mfg | |
| JPH06144123A (en) * | 1992-11-10 | 1994-05-24 | Kasai Kogyo Co Ltd | Internal component for automobile and its manufacture |
| JPH06287323A (en) * | 1993-04-05 | 1994-10-11 | Mitsui Petrochem Ind Ltd | Skin sheet highly resistant to piercing and laminate made by using the sheet |
| TW300227B (en) * | 1993-12-20 | 1997-03-11 | Sumitomo Chemical Co | |
| US5514320A (en) * | 1995-04-25 | 1996-05-07 | Akemi, Inc. | Method of making a hollow tool |
-
1997
- 1997-01-03 GB GB9700071A patent/GB2320908B/en not_active Expired - Fee Related
-
1998
- 1998-01-05 IL IL13069998A patent/IL130699A0/en unknown
- 1998-01-05 TR TR1999/01970T patent/TR199901970T2/en unknown
- 1998-01-05 CN CN98801681A patent/CN1243472A/en active Pending
- 1998-01-05 SK SK912-99A patent/SK91299A3/en unknown
- 1998-01-05 PL PL98334441A patent/PL334441A1/en unknown
- 1998-01-05 JP JP52975798A patent/JP2001507298A/en active Pending
- 1998-01-05 BR BR9806830-0A patent/BR9806830A/en not_active IP Right Cessation
- 1998-01-05 CZ CZ992385A patent/CZ238599A3/en unknown
- 1998-01-05 AU AU53347/98A patent/AU721660B2/en not_active Ceased
- 1998-01-05 HU HU0000864A patent/HUP0000864A2/en unknown
- 1998-01-05 CA CA002276663A patent/CA2276663A1/en not_active Abandoned
- 1998-01-05 WO PCT/GB1998/000009 patent/WO1998029233A1/en not_active Application Discontinuation
- 1998-01-05 EP EP98900097A patent/EP1011957A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU5334798A (en) | 1998-07-31 |
| TR199901970T2 (en) | 2000-08-21 |
| AU721660B2 (en) | 2000-07-13 |
| HUP0000864A2 (en) | 2000-08-28 |
| EP1011957A1 (en) | 2000-06-28 |
| JP2001507298A (en) | 2001-06-05 |
| BR9806830A (en) | 2002-01-02 |
| GB2320908A (en) | 1998-07-08 |
| CN1243472A (en) | 2000-02-02 |
| PL334441A1 (en) | 2000-02-28 |
| CZ238599A3 (en) | 1999-12-15 |
| GB2320908B (en) | 1999-04-28 |
| IL130699A0 (en) | 2000-06-01 |
| WO1998029233A1 (en) | 1998-07-09 |
| GB9700071D0 (en) | 1997-02-19 |
| SK91299A3 (en) | 2000-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |