GB2274427A - Fuel container material - Google Patents
Fuel container material Download PDFInfo
- Publication number
- GB2274427A GB2274427A GB9301181A GB9301181A GB2274427A GB 2274427 A GB2274427 A GB 2274427A GB 9301181 A GB9301181 A GB 9301181A GB 9301181 A GB9301181 A GB 9301181A GB 2274427 A GB2274427 A GB 2274427A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- fuel
- wall
- material according
- permeability
- 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.)
- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- 239000012611 container material Substances 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 230000035699 permeability Effects 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 150000002825 nitriles Chemical class 0.000 claims abstract description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 5
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical class C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 17
- 238000005530 etching Methods 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 description 5
- 239000002650 laminated plastic Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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- 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
- B32B1/00—Layered products having a non-planar shape
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2327/00—Polyvinylhalogenides
- B32B2327/06—PVC, i.e. polyvinylchloride
-
- 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
- B32B2439/00—Containers; Receptacles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Laminated Bodies (AREA)
Abstract
A material for use in forming a container comprises a first layer (12) for use as an outer wall, a second layer (14) for use as an inner wall, and an intermediate, liquid impermeable layer (16) to restrict the permeability of fuel vapour. The intermediate layer is bonded (e.g. by adhesive) to both the first and second layers. The intermediate layer may be a plastics film such as fluorinated ethene propene (FEP) which is chemically etched on both sides to enable bonding. The second layer may be a high nitrile polyvinylchloride compound laminate. The first layer may be a fabric coated with a high nitrile PVC compound. <IMAGE>
Description
Fuel Container Material
This invention relates to a material for use in forming a container for fuel, particularly fuel for motor vehicles, and to a method of constructing such a material
In respect of motor vehicles to be sold after 1st January 1993, there will apply European Economic
Community (EEC) fuel permeability laws requiring emission of fuel through a fuel container or tank to be no greater than twelve parts per million per hour.
Motor vehicles for use in racing competition generally utilise flexible fuel tanks to make use, not only of the lightweight flexible materials, but also of that space which might be available in the vehicle. Such fuel tanks can be shaped to conform to individual vehicles.
Testing of presently available flexible fuel tanks has however shown that they are unlikely to comply with the new EEC laws According to the present invention there is provided a material for use in forming a container for fuel 9 the material comprising a laminated structure adapted to restrict permeability of fuel therethrough below a predetermined level.
The structure may be adapted to restrict emission of fuel vapour to no greater than twelve parts per million per hour, i.e. in accordance with the EEC fuel permeability laws for all motor vehicles to be sold after 1st January 1993.
The laminated structure may comprise a first layer for use as an outer wall, a second layer for use as an inner wall, and an intermediate, liquid impermeable layer to restrict the permeability of fuel vapour. The intermediate layer may be bonded to both the first and second layers, and preferably comprises a plastics film which is chemically etched on both sides thereof to enable bonding. The plastics film may be formed of fluorinated ethene propene (FEP).
Preferably also the second layer may comprise a plastics laminate, for example a high nitrile polyvinylchloride (PVC) compound laminate. The first layer may comprise a fabric coated with a high nitrile PVC compound, whereby the structure is flexible with a reinforced outer wall.
The present invention also provides a method of forming a material for use in a container for fuel, the method comprising the steps of forming a laminate including a layer which restricts fuel permeability therethrough to below a predetermined value.
The method may include bonding an intermediate, liquid impermeable layer between a first layer, for use as an outer wall, and a second layer, for use as an inner wall. The intermediate layer may be a plastics film, and the method may comprise chemically etching both sides of the intermediate layer to enable bonding thereof to each of the first and second layers. The bonding may be effected by applying a suitable adhesive and then subjecting the laminated structure to a curing process, which may include both a heat and a pressure operation
An embodiment of the present invention will now be described by way of example only, with reference to the accompanying drawing, the single figure of which shows a cross-section through a material according to the invention
Referring to the drawing, a material for use in constructing a flexible fuel tank comprises a laminated structure 10.A first layer 12, adapted to form the outer wall of the tank, is formed of a plastics coated fabric providing strengthening for the tank, the fabric preferably being coated with a high nitrile PVC compound.
A second layer 14, adapted to form the inner wall of the tank, is formed of a laminated plastics material, and preferably the laminate is formed of a high nitrile
PVC compound which can have a thickness in the range of 0.1 mm to 1 mm.
A structure formed of the layers 12, 14 would not in itself restrict fuel vapour permeability therethrough to that required by the EEC fuel permeability laws. For this purpose, a liquid impermeable intermediate layer 16 is provided between the layers 12, 14, and comprises a plastics film which can have a thickness in the range of 0.02 mm to 0.2 mm. The plastics film is'preferably formed of fluorinated ethene propene (FEP). To enable bonding of the layer 16 to the other layers 12, 14, the
FEP film is chemically etched on both sides thereof and is bonded to the other layers 12, 14 by using suitable adhesive 18. When the adhesive 18 is applied, the laminated structure is subjected to a curing process, which includes both a heat and a pressure operation.
There is thus provided a laminated structure which meets the fuel vapour permeability requirements, by providing an intermediate plastics film and providing for suitable bonding of that film in the laminate. The layers may be formed of other suitable materials and it will be appreciated that the invention is not restricted to use with a flexible fuel tank, but can have, for example, a rigid plastics outer layer.
Various other modifications may be made without departing from the invention.
Whilst endeavouring in the foregoing Specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.
Claims (16)
1. A material for use in forming a container for fuel, the material comprising a laminated structure adapted to restrict permeability of fuel therethrough to below a predetermined level.
2. A material according to Claim 1, wherein the structure is adapted to restrict emission of fuel vapour to no greater than twelve parts per million per hour.
3. A material according to Claim 1, wherein the structure comprises a first layer for use as an outer wall, a second layer for use as an inner wall, and an intermediate, liquid impermeable layer to restrict the permeability of fuel vapour.
4. A material according to Claim 3, wherein the intermediate layer is bonded to both the first and second layers, and comprises a plastics film which is chemically etched on both sides thereof to enable bonding.
5. A material according to Claim 4, wherein the plastics film is formed of fluorinated ethene propene (FEP).
6. A material according to Claim 43, wherein the second layer comprises a plastics laminate.
7. A material according to Claim 6, wherein the second layer comprises a high nitrile polyvinylchloride (PVC) compound laminate.
8. A material according to Claim 3, wherein the first layer comprises a fabric coated with a high nitrile PVC compound, whereby the structure is flexible with a reinforced outer wall.
9. A method of forming a material for use in a container for fuel, the method comprising the steps of forming a laminate including a layer which restricts fuel permeability therethrough to below a predetermined value.
10. A method according to Claim 9, including bonding an intermediate, liquid impermeable layer between a first layer, for use as an outer wall, and a second layer, for use as an inner wall.
11. A method according to Claim 10, wherein the intermediate layer is a plastics film and the method comprises chemically etching both sides of the intermediate layer to enable bonding thereof to each of the first and second layers.
12. A method according to Claim 11, wherein the bonding is effected by applying a suitable adhesive and then subjecting the laminated structure to a curing process.
13. A method according to Claim 12, wherein the curing process includes both a heat and a pressure operation.
14. A material substantially as herein described with reference to and as shown in the accompanying drawing.
15. A method substantially as herein described with reference to and as shown in the accompanying drawing.
16. Any novel subject matter or combination including novel subject matter herein disclosed, whether or not within the scope of or relating to the same invention as any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9301181A GB2274427A (en) | 1993-01-22 | 1993-01-22 | Fuel container material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9301181A GB2274427A (en) | 1993-01-22 | 1993-01-22 | Fuel container material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9301181D0 GB9301181D0 (en) | 1993-03-10 |
| GB2274427A true GB2274427A (en) | 1994-07-27 |
Family
ID=10729091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9301181A Withdrawn GB2274427A (en) | 1993-01-22 | 1993-01-22 | Fuel container material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2274427A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1510860A (en) * | 1975-01-02 | 1978-05-17 | Goodyear Tire & Rubber | Laminated container |
| US4343861A (en) * | 1979-10-23 | 1982-08-10 | Minnesota Mining And Manufacturing Company | Fluoroelastomer/polyepichlorohydrin elastomer articles |
| US4606952A (en) * | 1982-10-15 | 1986-08-19 | Toyoda Gosei Co., Ltd. | Rubber laminate |
| EP0278685A2 (en) * | 1987-02-06 | 1988-08-17 | The Standard Oil Company | Polymer laminates employing photocurable adhesives and process for bonding fluoropolymers to substrates |
| EP0483442A1 (en) * | 1989-02-16 | 1992-05-06 | Novis W. Smith Jr. | Fabrics for protective garment or cover |
| US5129544A (en) * | 1990-11-08 | 1992-07-14 | Jacobson Wendell L | Laminated fuel tank structure |
-
1993
- 1993-01-22 GB GB9301181A patent/GB2274427A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1510860A (en) * | 1975-01-02 | 1978-05-17 | Goodyear Tire & Rubber | Laminated container |
| US4343861A (en) * | 1979-10-23 | 1982-08-10 | Minnesota Mining And Manufacturing Company | Fluoroelastomer/polyepichlorohydrin elastomer articles |
| US4606952A (en) * | 1982-10-15 | 1986-08-19 | Toyoda Gosei Co., Ltd. | Rubber laminate |
| EP0278685A2 (en) * | 1987-02-06 | 1988-08-17 | The Standard Oil Company | Polymer laminates employing photocurable adhesives and process for bonding fluoropolymers to substrates |
| EP0483442A1 (en) * | 1989-02-16 | 1992-05-06 | Novis W. Smith Jr. | Fabrics for protective garment or cover |
| US5129544A (en) * | 1990-11-08 | 1992-07-14 | Jacobson Wendell L | Laminated fuel tank structure |
Non-Patent Citations (1)
| Title |
|---|
| "Fluorinated Elastomers",pages 500-505,Vol.8,Encyclopedia ofChemical Technology,Kirk-Othmer,3rd.ed. * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9301181D0 (en) | 1993-03-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |