WO2012049490A1 - Arrangement of bonded sheets - Google Patents

Arrangement of bonded sheets Download PDF

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Publication number
WO2012049490A1
WO2012049490A1 PCT/GB2011/051957 GB2011051957W WO2012049490A1 WO 2012049490 A1 WO2012049490 A1 WO 2012049490A1 GB 2011051957 W GB2011051957 W GB 2011051957W WO 2012049490 A1 WO2012049490 A1 WO 2012049490A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheets
bonded
arrangement
solvent adhesive
furniture
Prior art date
Application number
PCT/GB2011/051957
Other languages
French (fr)
Inventor
Paul Huggins
Original Assignee
Sealwise Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sealwise Limited filed Critical Sealwise Limited
Publication of WO2012049490A1 publication Critical patent/WO2012049490A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/04—Non-loosenable joints for non-metal furniture parts, e.g. glued
    • 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
    • B32B27/06—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
    • B32B27/065—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 foam
    • 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
    • B32B3/02—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 features of form at particular places, e.g. in edge regions
    • B32B3/04—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 features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a 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
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0235—Vinyl halide, 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • 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
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • 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
    • B32B2307/72—Density
    • 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
    • B32B2479/00—Furniture

Definitions

  • the present invention relates to an arrangement of bonded sheets, more particularly an arrangement of bonded sheets comprised in an item of furniture, such as a cabinet.
  • German patent application number DE 102004033139 in the name of Roth et al. discloses a plastic laminar moulding, especially a vehicle internal component, which comprises a carrier element and a foam injection moulded surface layer.
  • a functional layer is located between the carrier element and the surface layer.
  • the functional layer has adhesion modifying characteristics and consists of a polypropylene foam layer with an
  • the functional layer is a spacing layer or a barrier layer.
  • the moulding is produced by forming the carrier layer and then forming the functional layer on top, followed by the surface layer.
  • the resulting laminated panel is useful as a table top, shelving, and as a structural component in a variety of case goods and furniture.
  • PVC foam in structural goods. It would be advantageous to have items of furniture such as, for example, cabinetry constructed from PVC foam which is substantially waterproof. It would be further advantageous to have such furniture, for example, cabinetry possessing antibacterial or antimicrobial qualities .
  • an arrangement of bonded sheets comprising at least two composite sheets which each comprise a PVC skin and an uPVC foam core, wherein two or more of the at least two composite sheets are bonded by:
  • the arrangement of bonded sheets is comprised in an item of furniture or
  • the arrangement of bonded sheets is the item of furniture i.e., the arrangement of bonded sheets makes up the item of furniture in its entirety.
  • the item of furniture may be an item of household furniture such as, for example, beds or cabinets, particularly but not limited to kitchen cabinets or bathroom cabinets.
  • the arrangement of bonded sheets is comprised in, or comprises, items of
  • furniture for industrial use such as, for example, cabinets and work surfaces for use in industrial kitchens, canteens, dental surgeries, doctors' surgeries, veterinary practices, marine vessels, hospitals and laboratories.
  • the arrangement of bonded sheets is comprised in, or comprises, hot tubs,
  • arrangement of bonded sheets is for use in any items of furniture where there may be exposure to high humidity levels or where, due to reasons of hygiene, the washing down of a surface or interior may be required.
  • the arrangement of bonded sheets is a hygienic cabinet.
  • the solvent in an embodiment of the present invention, the solvent
  • adhesive is tetrahydrofuran or a methylene chloride based solvent adhesive.
  • the solvent in an embodiment of the present invention, the solvent
  • the adhesive is tetrahydrofuran .
  • the PVC skin is impregnated with an antibacterial substance.
  • the antibacterial substance comprises silver.
  • a hygienic cabinet comprising: at least two composite sheets each comprising a PVC skin and a uPVC foam core; wherein at least two said sheets are bonded by: positioning said two sheets substantially adjacent to each other; and applying between said sheets a solvent adhesive such that capillarity occurs between said sheets; whereby said sheets become bonded.
  • said solvent adhesive is one selected from the list comprising: tetrahydrofuran, a methylene chloride based solvent adhesive.
  • said PVC skin is impregnated with an
  • the composite sheets may be provided with an antibacterial or antimicrobial substance impregnated in at least a part of the PVC skin and/or uPVC foam core.
  • the sheets or a part thereof are impregnated with an antibacterial or antimicrobial substance.
  • antimicrobial or antibacterial substance may be impregnated across the whole surface area of the PVC skin or only in parts thereof and/or across the whole surface area of the uPVC foam core or may be restricted to parts thereof.
  • An advantage of the present invention is that the furniture items are lightweight in view of the materials employed compared with traditional furniture items such as cabinets constructed from wood.
  • the materials used in the furniture items according to the present invention are substantially more corrosion-resistant, resistant to outside elements (where applicable) , resistant to rotting, warping, cracking, splitting or discolouration, than traditional materials used in cabinet manufacture or in the manufacture of other items of furniture.
  • the furniture items, in particular the cabinets, produced according to the method described herein are substantially waterproof along all surfaces and joints.
  • antibacterial or antimicrobial substances can further enhance the hygiene of the furniture items, such as cabinets.
  • the solvent adhesive used in bonding the two or more composite sheets, is tetrahydrofuran . In another embodiment, it may also be a methylene chloride based solvent adhesive or any solvent adhesive which causes bonding or diffusive adhesion between PVC sheets.
  • the gap is
  • substantially the entirety of the PVC skin is impregnated with an antibacterial or antimicrobial
  • antimicrobial substance which may be any antibacterial, antimicrobial substance known in the art, such as, for example, silver.
  • the antimicrobial or antibacterial substance may be chosen and applied at any suitable concentration depending on the end use in question. An advantage of this is that it further enhances the hygienic properties of the material.
  • the cabinet according to an embodiment of the invention may be any shape or size and may comprise doors, shelves, drawers or the like.
  • the cabinet is made entirely of the sheets and joins of the present invention, an advantage being that there are no joins or surfaces on which bacteria can generate or through which moisture can penetrate.
  • the cabinet may comprise other elements
  • concealed hinges are used to attach doors thereto.
  • An advantage of this is that the hinges are not in contact with any bacteria, moisture or the like coming into contact with the hinges.
  • the hinges may be any concealed hinges known in the art although preferably Hettich silent system screw hinges are used.
  • the furniture items according to embodiments of the invention may be used in industrial applications such as doctors' surgeries, dental surgeries, veterinary practices, marine vessels, hospitals, laboratories, canteens, restaurant and industrial kitchens, leisure centres and spas and other locations where hygiene, waterproofing or at least water- resistance, durability and longevity is a priority.
  • the furniture items according to embodiments of the invention may also be useful in domestic applications, such as for kitchen use where spill-resistance and long life are important and in view of the ever growing demand for outdoor kitchens.
  • Other domestic applications include bathroom cabinets, hot tubs, Jacuzzi's, steam rooms and the like.
  • apparatus may be used for any application and is not limited to those mentioned herein.
  • Figure 1 shows a cross section of the separate sheets for use in the present invention with adhesive therebetween;
  • Figure 2 shows a cross section of an embodiment of the
  • Figure 1 shows a first sheet 100 and a second sheet 102.
  • Each sheet comprises a PVC skin 106 and an uPVC foam core 104.
  • Solvent adhesive 112 is shown applied between the sheets such that capillarity occurs between said sheets; whereby the sheets become bonded.
  • the figures show gap 108
  • the gap between the sheets is microscopically small.
  • the gap is in the range of up to 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1.0mm.
  • the gap is in the range of up to 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm or 0.09mm.
  • Figure 2 shows the bond 110 between sheets 100 and 102.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

An arrangement of bonded sheets comprising at least two composite sheets which each comprise a PVC skin and an uPVC foam core, wherein two or more of the at least two composite sheets are bonded by: positioning two of the composite sheets substantially adjacent to each other; and applying a solvent adhesive between the two composite sheets such that capillarity occurs between said sheets; whereby said sheets become bonded.

Description

Arrangement of bonded sheets
Background of the Invention The present invention relates to an arrangement of bonded sheets, more particularly an arrangement of bonded sheets comprised in an item of furniture, such as a cabinet.
It is known in the art to use coextruded PVC foam components in the automobile industry. For example, German patent application number DE 102004033139 in the name of Roth et al. discloses a plastic laminar moulding, especially a vehicle internal component, which comprises a carrier element and a foam injection moulded surface layer. A functional layer is located between the carrier element and the surface layer. The functional layer has adhesion modifying characteristics and consists of a polypropylene foam layer with an
acrylonitrile-butadiene-styrene or PVC film. The functional layer is a spacing layer or a barrier layer. The moulding is produced by forming the carrier layer and then forming the functional layer on top, followed by the surface layer.
It is further known to use coextruded PVC foam sheets in the display industry. For example, Chinese utility model number CN2937318 in the name of Wang discloses a decorative ceiling and wall board which is formed by co-extruding micro-foaming PVC and reinforced UPVC. The board is a two-layer
construction composed of a PVC micro-foaming base layer and a high-strength UPVC surface layer. One side of the board is provided with a butt joint socket, a butt joint plug corresponding to the butt joint socket is arranged on another side, and a stiffener is disposed on the bottom surface.
It is also known in the art to use individual pieces of coextruded PVC foam sheets in the furniture making industry. For example, United States patent application number US
2003087080 in the name of Horwitz discloses a method and apparatus for fabrication of foam laminates suitable for use in the construction of furniture and case goods. The panel has an upper surface formed from a thermoplastic sheet of material such as PVC. A cavity formed by the interior
surfaces of the sheet has suspended therein attachment or mounting hardware which is subsequently encapsulated by an in situ structural foaming step. The resulting laminated panel is useful as a table top, shelving, and as a structural component in a variety of case goods and furniture.
It can be seen from the foregoing that it is advantageous to use PVC foam in structural goods. It would be advantageous to have items of furniture such as, for example, cabinetry constructed from PVC foam which is substantially waterproof. It would be further advantageous to have such furniture, for example, cabinetry possessing antibacterial or antimicrobial qualities .
It is therefore an object of the present invention to provide a method for producing substantially waterproof and in
addition, if desirable, antibacterial or antimicrobial items of furniture, such as, for example, cabinetry, from coextruded PVC foam sheets. Summary of the Invention
According to the present invention, there is provided an arrangement of bonded sheets comprising at least two composite sheets which each comprise a PVC skin and an uPVC foam core, wherein two or more of the at least two composite sheets are bonded by:
positioning two of the composite sheets
substantially adjacent to each other; and
applying a solvent adhesive between the two composite sheets such that capillarity occurs between said sheets;
whereby said sheets become bonded.
In an embodiment of the present invention, the arrangement of bonded sheets is comprised in an item of furniture or
alternatively the arrangement of bonded sheets is the item of furniture i.e., the arrangement of bonded sheets makes up the item of furniture in its entirety. The item of furniture may be an item of household furniture such as, for example, beds or cabinets, particularly but not limited to kitchen cabinets or bathroom cabinets.
In an embodiment of the present invention, the arrangement of bonded sheets is comprised in, or comprises, items of
furniture for industrial use such as, for example, cabinets and work surfaces for use in industrial kitchens, canteens, dental surgeries, doctors' surgeries, veterinary practices, marine vessels, hospitals and laboratories.
In an embodiment of the present invention, the arrangement of bonded sheets is comprised in, or comprises, hot tubs,
Jacuzzis, saunas, steam rooms, marine vessels or the
arrangement of bonded sheets is for use in any items of furniture where there may be exposure to high humidity levels or where, due to reasons of hygiene, the washing down of a surface or interior may be required.
In an embodiment of the present invention, the arrangement of bonded sheets is a hygienic cabinet. In an embodiment of the present invention, the solvent
adhesive is tetrahydrofuran or a methylene chloride based solvent adhesive.
In an embodiment of the present invention, the solvent
adhesive is tetrahydrofuran . In an embodiment of the present invention, the PVC skin is impregnated with an antibacterial substance.
In an embodiment of the present invention, the antibacterial substance comprises silver.
In an embodiment of the present invention, there is provided a hygienic cabinet comprising: at least two composite sheets each comprising a PVC skin and a uPVC foam core; wherein at least two said sheets are bonded by: positioning said two sheets substantially adjacent to each other; and applying between said sheets a solvent adhesive such that capillarity occurs between said sheets; whereby said sheets become bonded.
In an embodiment, said solvent adhesive is one selected from the list comprising: tetrahydrofuran, a methylene chloride based solvent adhesive.
In an embodiment, said PVC skin is impregnated with an
antibacterial substance. The composite sheets may be provided with an antibacterial or antimicrobial substance impregnated in at least a part of the PVC skin and/or uPVC foam core.
In an embodiment, the sheets or a part thereof are impregnated with an antibacterial or antimicrobial substance. The
antimicrobial or antibacterial substance may be impregnated across the whole surface area of the PVC skin or only in parts thereof and/or across the whole surface area of the uPVC foam core or may be restricted to parts thereof.
In a further aspect of the present invention, there is
provided a method for the manufacture of an arrangement of bonded sheets, comprising the steps of:
(i) providing two or more composite sheets each
comprising a PVC skin and a uPVC foam core; and
(ii) bonding the composite sheets by positioning two of the composite sheets substantially adjacent to each other and applying a solvent adhesive between the two composite sheets such that capillarity occurs between said sheets, resulting in the bonding of said sheets. In a further aspect of the present invention, there is
provided use of an arrangement of bonded sheets as described hereinabove in the manufacture of furniture items, in
particular in the manufacture of cabinets or in the
manufacture of work surfaces.
An advantage of the present invention is that the furniture items are lightweight in view of the materials employed compared with traditional furniture items such as cabinets constructed from wood. A further advantage is that the materials used in the furniture items according to the present invention are substantially more corrosion-resistant, resistant to outside elements (where applicable) , resistant to rotting, warping, cracking, splitting or discolouration, than traditional materials used in cabinet manufacture or in the manufacture of other items of furniture. A yet further advantage is that the furniture items, in particular the cabinets, produced according to the method described herein are substantially waterproof along all surfaces and joints. A still further advantage is that impregnation with
antibacterial or antimicrobial substances can further enhance the hygiene of the furniture items, such as cabinets.
Detailed Description of the Invention
In an embodiment, the solvent adhesive, used in bonding the two or more composite sheets, is tetrahydrofuran . In another embodiment, it may also be a methylene chloride based solvent adhesive or any solvent adhesive which causes bonding or diffusive adhesion between PVC sheets. The gap is
sufficiently narrow such that capillary action takes place, and the solvent adhesive is guided upwards along the length of the gap by surface tension, as known in the art. The solvent adhesive then breaks down bonds in the PVC skin and causes the two adjacent edges of the skins to bond together into a single piece of PVC via diffusive adhesion. An advantage of this form of bonding is that the join thereby formed is completely waterproof and spills or water contained in the gap will not cause the sheets or join to deteriorate, grow bacteria, or otherwise become unhygienic.
In an embodiment, substantially the entirety of the PVC skin is impregnated with an antibacterial or antimicrobial
substance which may be any antibacterial, antimicrobial substance known in the art, such as, for example, silver. The antimicrobial or antibacterial substance may be chosen and applied at any suitable concentration depending on the end use in question. An advantage of this is that it further enhances the hygienic properties of the material.
The cabinet according to an embodiment of the invention may be any shape or size and may comprise doors, shelves, drawers or the like. In an embodiment, the cabinet is made entirely of the sheets and joins of the present invention, an advantage being that there are no joins or surfaces on which bacteria can generate or through which moisture can penetrate.
However, alternatively, the cabinet may comprise other
materials and other joins as well as those of the present invention .
In an embodiment of a cabinet, concealed hinges are used to attach doors thereto. An advantage of this is that the hinges are not in contact with any bacteria, moisture or the like coming into contact with the hinges. The hinges may be any concealed hinges known in the art although preferably Hettich silent system screw hinges are used.
Further advantages of such cabinets, as well as being hygienic and waterproof, are that they are lightweight, can be
subjected to most manufacturing processes, and are long lasting and not subject to corrosion, rotting, warping, cracking, splitting or discolouration. It is envisaged that the furniture items according to embodiments of the invention may be used in industrial applications such as doctors' surgeries, dental surgeries, veterinary practices, marine vessels, hospitals, laboratories, canteens, restaurant and industrial kitchens, leisure centres and spas and other locations where hygiene, waterproofing or at least water- resistance, durability and longevity is a priority. The furniture items according to embodiments of the invention may also be useful in domestic applications, such as for kitchen use where spill-resistance and long life are important and in view of the ever growing demand for outdoor kitchens. Other domestic applications include bathroom cabinets, hot tubs, Jacuzzi's, steam rooms and the like. Furthermore, the
apparatus may be used for any application and is not limited to those mentioned herein.
The invention will now be described, by way of example only, with the reference to the following drawings, in which: Figure 1 shows a cross section of the separate sheets for use in the present invention with adhesive therebetween; and
Figure 2 shows a cross section of an embodiment of the
arrangement of bonded sheets of the present invention.
Figure 1 shows a first sheet 100 and a second sheet 102. Each sheet comprises a PVC skin 106 and an uPVC foam core 104.
Solvent adhesive 112 is shown applied between the sheets such that capillarity occurs between said sheets; whereby the sheets become bonded. The figures show gap 108
disproportionally large in the figures for clarity but it should be noted that in fact the gap between the sheets is microscopically small. In an embodiment, the gap is in the range of up to 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1.0mm. In an embodiment, the gap is in the range of up to 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm or 0.09mm. Figure 2 shows the bond 110 between sheets 100 and 102.

Claims

Claims
1. An arrangement of bonded sheets comprising at least two composite sheets which each comprise a PVC skin and an uPVC foam core, wherein two or more of the at least two composite sheets are bonded by:
positioning two of the composite sheets
substantially adjacent to each other; and
applying a solvent adhesive between the two composite sheets such that capillarity occurs between said sheets;
whereby said sheets become bonded.
2. The arrangement of bonded sheets of claim 1 wherein the solvent adhesive is tetrahydrofuran or a methylene chloride based solvent adhesive.
3. The arrangement of bonded sheets of claim 2 wherein the solvent adhesive is tetrahydrofuran .
4. The arrangement of bonded sheets of any one of the preceding claims wherein said PVC skin is impregnated with an antibacterial substance.
5. The arrangement of bonded sheets of claim 4 wherein the antibacterial substance comprises silver.
6. The arrangement of bonded sheets of any one of the preceding claims, which is a hygienic cabinet.
PCT/GB2011/051957 2010-10-12 2011-10-11 Arrangement of bonded sheets WO2012049490A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201017123A GB2484477B (en) 2010-10-12 2010-10-12 Waterproof cabinets comprising coextruded pvc foam sheets
GB1017123.9 2010-10-12

Publications (1)

Publication Number Publication Date
WO2012049490A1 true WO2012049490A1 (en) 2012-04-19

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WO (1) WO2012049490A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198989A (en) * 1986-08-14 1988-06-29 Mark William Sweeney A laminated panel
JPH0533436A (en) * 1991-07-26 1993-02-09 Tsutsunaka Plast Ind Co Ltd Method for laying floor material at flat roof or the like covered with waterproof sheet
US5922798A (en) * 1995-12-08 1999-07-13 The Lamson & Sessions Co. Microencapsulatable solvent adhesive composition and method for coupling conduits
US20030087080A1 (en) 2000-07-06 2003-05-08 Horwitz David James Foam laminates
DE102004033139A1 (en) 2004-07-08 2006-01-26 Bayerische Motoren Werke Ag Plastic laminar moulding comprises a carrier element and a foam injection moulded surface layer, with an intermediate functional layer
CN2937318Y (en) 2006-04-27 2007-08-22 王煜 PVC co-extrusion foam decorative board for ceiling wall

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198989A (en) * 1986-08-14 1988-06-29 Mark William Sweeney A laminated panel
JPH0533436A (en) * 1991-07-26 1993-02-09 Tsutsunaka Plast Ind Co Ltd Method for laying floor material at flat roof or the like covered with waterproof sheet
US5922798A (en) * 1995-12-08 1999-07-13 The Lamson & Sessions Co. Microencapsulatable solvent adhesive composition and method for coupling conduits
US20030087080A1 (en) 2000-07-06 2003-05-08 Horwitz David James Foam laminates
DE102004033139A1 (en) 2004-07-08 2006-01-26 Bayerische Motoren Werke Ag Plastic laminar moulding comprises a carrier element and a foam injection moulded surface layer, with an intermediate functional layer
CN2937318Y (en) 2006-04-27 2007-08-22 王煜 PVC co-extrusion foam decorative board for ceiling wall

Also Published As

Publication number Publication date
GB2484477A (en) 2012-04-18
GB201017123D0 (en) 2010-11-24
GB2484477B (en) 2015-02-11
GB2484477A8 (en) 2012-04-25

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