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GB2224969A - Improvements in and relating to the manufacture of laminates - Google Patents

Improvements in and relating to the manufacture of laminates Download PDF

Info

Publication number
GB2224969A
GB2224969A GB8821268A GB8821268A GB2224969A GB 2224969 A GB2224969 A GB 2224969A GB 8821268 A GB8821268 A GB 8821268A GB 8821268 A GB8821268 A GB 8821268A GB 2224969 A GB2224969 A GB 2224969A
Authority
GB
United Kingdom
Prior art keywords
layer
laminate
resin
textured
based material
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
Application number
GB8821268A
Other versions
GB8821268D0 (en
GB2224969B (en
Inventor
Roy Halpin
Christine Verna Halpin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TETRONEL Ltd
Original Assignee
TETRONEL Ltd
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 TETRONEL Ltd filed Critical TETRONEL Ltd
Priority to GB8821268A priority Critical patent/GB2224969B/en
Publication of GB8821268D0 publication Critical patent/GB8821268D0/en
Publication of GB2224969A publication Critical patent/GB2224969A/en
Application granted granted Critical
Publication of GB2224969B publication Critical patent/GB2224969B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • 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
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B29D99/0014—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with ridges or ribs, e.g. joined ribs
    • B29D99/0017—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with ridges or ribs, e.g. joined ribs with filled hollow ridges
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/04—Designs imitating natural patterns of stone surfaces, e.g. marble
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/722—Decorative or ornamental articles
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • 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
    • B32B2419/00—Buildings or parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)

Abstract

There is disclosed a method of manufacturing a laminate which comprises laying in a mould (1) a first layer (2) of a curable polyester resin, applying a second layer (3) in the form of a sheet of fibre matting, applying on top of the second layer (3) a third layer (4) which comprises a core material, applying on top of the third layer (4) a fourth layer (5) which comprises a further sheet of fibre matting which is arranged so as to enclose the core material (4) between the two sheets (3, 5) of fibre matting, bonding the first, second, third and fourth layers (2, 3, 4, 5) together using a hardenable resin-based material, and allowing the laminate to cure and removing it from the mould (1). The laminate may be provided with a textured finish so as to represent stonework, brickwork or the like so as to be used as part of a building or for cladding a building. <IMAGE>

Description

IMPROVEMENTS IN AND RELATING TO THE MANUFACTURE OF LAMINATES The present invention relates to an improved laminate and method of manufacturing the same, and particularly, though not exclusively, to such a laminate intended to be used as part of a building or for cladding a building.
According to a first aspect of the present invention there is provided a method of manufacturing a laminate, the method comprising the steps of: Laying in a suitable mould a first layer of hardenable resin based material; Placing on top of said first layer a second layer comprising a sheet of fibre matting; Placing on top of said second layer a third layer comprising a core material; Placing on top of said third layer a fourth layer comprising a further sheet of fibre matting arranged so as to enclose said core material between said two sheets of fibre matting; Bonding said first, second, third and fourth layers together using a hardenable resin based material; Allowing the laminate to cure and removing it from the mould.
Preferably, once removed from the mould the first layer of the laminate, i.e. the cured resin based material, is decorated by the addition of a textured finish such as to represent stonework, brickwork or the like.
This is conveniently achieved by applying masking tape to the exposed surface of the first layer in any desired pattern, and applying to the first layer, over the top of the masking tape, a hardenable textured material which preferably comprises a mixture of resin, hardener, sand and pigment. The masking tape is then removed prior to drying or curing of the textured finish.
Alternatively, a proprietary textured paint may be utilized to give a very similar effect.
In the preferred embodiment, the resin based material for the first layer is a substance known as "gel-coate" which is a polyester resin. This may be transparent, or may have a pigment added thereto to create the desired colour for the first layer.
A particularly pleasing effect is obtained when the colour of the first layer and the colour of the textured finish contrast with each other, for example grey for the first layer and red for the textured finish, resulting in a brickwork effect.
The fibre matting is preferably a glassfibre reinforced plastic (GRP) mat, and this is conveniently secured to the layer directly underneath by means of a suitable resin and hardener mixture to which fire retardant agents may be added. Where the gel-coate is transparent, the resin/hardener mixture used to secure the second layer to the first layer may have a pigment added so that the colour will show through the transparent first layer.
The core material will obviously vary according to the particular application of the laminate, and may comprise either a solid piece of hardboard, chipboard, wood or the like. Alternatively, for a lighter duty laminate, the core material may comprise a series of strips of suitable rigid or semi-rigid material to provide the necessary stiffness in the finished laminate.
According to a second aspect of the present invention, there is provided a laminate comprising a first layer of resin based material, a second layer of fibre matting, a third layer of core material and a fourth layer of fibre matting, all of said layers being bonded together by a hardenable resin based material.
When the laminate of the present invention has been removed from the mould, a plurality of such laminates may be used to form a building or other structure. The textured finish may be applied to the individual laminates, but is preferably applied after the laminates have been assembled together to form the building.
Occasionally, it is necessary to apply a cladding to an existing building, and the invention has therefore been modified so as to supply this particular demand.
According to a third aspect of the present invention there is provided a method of cladding the walls of a building or other structure, the method comprising the steps of Applying to said walls a first layer of hardenable resin based material; Allowing said first layer to harden; Applying to said first layer a mask in any desired pattern; Applying to said first layer and said mask a second layer of hardenable resin based material; Removing said mask prior to hardening of said second layer.
As previously, the second layer preferably comprises a mixture of resin, hardener, sand and pigment, and the first layer may comprise any suitable curable resin based material, for example liquid plastic floor covering to which colour and fire retardance may be added.
Embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings in which: Figure 1 shows the manufacture of a laminate in accordance with the first and second aspects of the present invention; Figure 2 shows the application of a textured finish to the laminate of Figure 1; Figure 3 shoes the cladding of an existing building in accordance with a third aspect of the present invention.
Referring to the drawings, a method of manufacturing a laminate according to the first and second aspects of the present invention comprises laying in a suitable mould 1 a first layer 2 of a curable polyester resin such as "gel coate". Next, a sheet 3 of 450gm GRP mat is applied over the gel-coate using a resin/hardener mix including fire retardants. A series of rigid or semi-rigid formers 4 are then applied over the mat 3, and a further sheet 5 of 450gm GRP mat is placed over the first sheet 3 and the formers 4, using a resin/hardener mix to secure the sheet 5 to the sheet 3 and formers 4.
After allowing the laminate to cure, it is turned out of the mould and inverted as shown in Figure 2.
By applying masking tape (not shown) in a desired pattern to the top surface 2a of the gel-coate layer 2 and applying over the tape a hardenable textured material 6, an effect similar to brickwork or stonework may be achieved.
The textured material 6 comprises a mixture of resin, hardener, sand and pigment, or alternatively a textured paint may be used.
Naturally, the masking tape is removed prior to curing or drying of the textured finish, so as to prevent the edges of the textured finish 6 being broken as the tape is removed.
The gel-coate material preferably includes a pigment which contrasts with the pigment in a textured finish, so as to provide a two colour effect in which the gel-coate layer is visible through the gaps 6a in the textured finish 6.
Referring to Figure 3, a method of cladding a wall of an existing building is illustrated. This comprises applying to the wall a first layer 11 of hardenable resin based material such as liquid plastic floor covering, to which fire retardants and pigment may be added. When cured, this layer 11 has masking tape (not shown) applied thereto in a desired pattern, and a textured finish 12 such as that described above is applied over the tape and the first layer 11, the tape then being removed prior to curing or drying of the textured finish 12. Again, the first layer 11 and the textured finish 12 are preferably in contrasting colours so that the colour of layer 11 is visible through the gaps 12a in the differently coloured textured finish 12.

Claims (13)

1. A method manufacturing a laminate, the method comprising the steps of: laying in a suitable mould a first layer of hardenable resin-based material; placing on top of said first layer a second layer comprising a sheet of fibre matting; placing on top of said second layer a third layer comprising a core material; placing on top of said third layer a fourth layer comprising a further sheet of fibre matting arranged so as to enclose said core material between said two sheets of fibre matting; bonding said first, second, third and fourth layers together using a hardenable resin-based material; and, allowing the laminate to cure and removing it from the mould.
2. A method according to Claim 1, in which, after removal from the mould, the first layer of the laminate is decorated by the addition of a textured finish.
3. A method according to Claim 2, in which masking tape is applied to the exposed surface of the first layer in any desired pattern, and there is applied to the first layer, over the top of the masking tape, a hardenable textured material, and then the masking tape is removed prior to drying or curing of the textured fin#ish.
4. A method according to Claim 3; in which the hardenable textured material comprises a mixture of resin, hardener, sand and pigment.
5. A method according to Claim 1, in which a proprietory textured paint is applied to the laminate.
6. A method according to any one of the preceding claims, in which the resin-based material for the first layer comprises a polyester resin.
7. A method according to any one of the preceding claims, in which the first layer is coloured grey and the textured finish is coloured red, to produce a brickwork effect.
8. A method according to any one of the preceding claims, in which the fibre matting is a glass fibre reinforced plastic mat secured to the layer directly underneath by means of a resin and hardener mixture to which fire retardent agents are added.
9. A method according to any one of the preceding claims, in which the core material comprises a solid piece of hardboard, chipboard, wood, or a series of strips of rigid or semi-rigid material.
10. A laminate comprising a first layer of a resinbased material, a second layer of fibre matting, a third layer of core material and a fourth layer of fibre matting, all of said layers being bonded together by a hardenable resin-based material.
11. A method of cladding the walls of a building or other structure, the method comprising the steps of: applying to said walls a first layer of hardenable resin-based material; allowing said first layer to harden; applying to said first layer a mask in any desired pattern; applying to said first layer and to said mask a second layer of hardenable resin-based material; and, removing said mask prior to hardening of said second layer.
12. A method according to Claim 1 and substantially as hereinbefore described with reference to, and as shown in the accompanying drawings.
13. A laminate according to Claim 10 and substantially as hereinbefore described with reference to, and as shown in the accompanying drawings.
GB8821268A 1988-09-12 1988-09-12 Improvements in and relating to the manufacture of laminates Expired - Fee Related GB2224969B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8821268A GB2224969B (en) 1988-09-12 1988-09-12 Improvements in and relating to the manufacture of laminates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8821268A GB2224969B (en) 1988-09-12 1988-09-12 Improvements in and relating to the manufacture of laminates

Publications (3)

Publication Number Publication Date
GB8821268D0 GB8821268D0 (en) 1988-10-12
GB2224969A true GB2224969A (en) 1990-05-23
GB2224969B GB2224969B (en) 1993-07-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB8821268A Expired - Fee Related GB2224969B (en) 1988-09-12 1988-09-12 Improvements in and relating to the manufacture of laminates

Country Status (1)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236505A (en) * 1989-07-17 1991-04-10 Dyrotech Ind Inc Reinforced panel and method of making same
EP0532829A1 (en) * 1991-09-14 1993-03-24 EUROCOPTER DEUTSCHLAND GmbH Flat object with honeycomb structure
GB2262469A (en) * 1991-11-22 1993-06-23 Douglas C Turner Synthetic resin solid surface material and method of making same
GB2278375A (en) * 1993-05-27 1994-11-30 Raymond Price Glass fibre reinforced fencing panels
GB2301793A (en) * 1995-06-07 1996-12-18 Wen Plast Moulding a seamless aseptic door
GB2301791A (en) * 1995-06-07 1996-12-18 Wen Plast Moulding an aseptic seamless door
GB2301792A (en) * 1995-06-07 1996-12-18 Wen Plast Method for moulding a seamless aseptic door frame
GB2302840A (en) * 1995-07-06 1997-02-05 Chi Tien Sheng Improved form making method
GB2339807A (en) * 1998-07-17 2000-02-09 M J Highway Technology Limited Surface covering array
WO2003024700A3 (en) * 2001-09-20 2003-07-10 Lockheed Corp Composite structure and method for constructing same
GB2388068A (en) * 2002-02-25 2003-11-05 Howard & Associates Ltd J Coating and cladding of fibre reinforced materials
US7018578B2 (en) * 1997-08-04 2006-03-28 The Regents Of The University Of California Method of producing a hybrid matrix fiber composite

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1221267A (en) * 1968-05-20 1971-02-03 Larson Ind Inc Improved foamed-core laminates
GB1228996A (en) * 1968-05-10 1971-04-21
GB1250075A (en) * 1969-02-06 1971-10-20
GB1415408A (en) * 1972-02-10 1975-11-26 Willard Boat Works Mould and method for building boats from reinforced synthetic plastics materials
GB1524896A (en) * 1975-03-14 1978-09-13 Sidral Panel member for constructing storage containers
WO1981002278A1 (en) * 1980-02-05 1981-08-20 B Gustafsson A method of manufacturing stiffened single-shell and sandwich constructions from reinforced plastics

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1228996A (en) * 1968-05-10 1971-04-21
GB1221267A (en) * 1968-05-20 1971-02-03 Larson Ind Inc Improved foamed-core laminates
GB1250075A (en) * 1969-02-06 1971-10-20
GB1415408A (en) * 1972-02-10 1975-11-26 Willard Boat Works Mould and method for building boats from reinforced synthetic plastics materials
GB1524896A (en) * 1975-03-14 1978-09-13 Sidral Panel member for constructing storage containers
WO1981002278A1 (en) * 1980-02-05 1981-08-20 B Gustafsson A method of manufacturing stiffened single-shell and sandwich constructions from reinforced plastics

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236505A (en) * 1989-07-17 1991-04-10 Dyrotech Ind Inc Reinforced panel and method of making same
EP0532829A1 (en) * 1991-09-14 1993-03-24 EUROCOPTER DEUTSCHLAND GmbH Flat object with honeycomb structure
GB2262469A (en) * 1991-11-22 1993-06-23 Douglas C Turner Synthetic resin solid surface material and method of making same
GB2262469B (en) * 1991-11-22 1996-04-24 Douglas C Turner Synthetic resin solid surface material and method of making same
GB2278375A (en) * 1993-05-27 1994-11-30 Raymond Price Glass fibre reinforced fencing panels
GB2301791B (en) * 1995-06-07 1998-08-19 Wen Plast A method of manufacture of a swing door
GB2301793A (en) * 1995-06-07 1996-12-18 Wen Plast Moulding a seamless aseptic door
GB2301791A (en) * 1995-06-07 1996-12-18 Wen Plast Moulding an aseptic seamless door
GB2301792A (en) * 1995-06-07 1996-12-18 Wen Plast Method for moulding a seamless aseptic door frame
GB2301792B (en) * 1995-06-07 1998-08-19 Wen Plast A method for the manufacture of a part of a door frame and to the door frame itself
GB2301793B (en) * 1995-06-07 1998-08-19 Wen Plast A method for the manufacture of a door
GB2302840A (en) * 1995-07-06 1997-02-05 Chi Tien Sheng Improved form making method
US7018578B2 (en) * 1997-08-04 2006-03-28 The Regents Of The University Of California Method of producing a hybrid matrix fiber composite
GB2339807A (en) * 1998-07-17 2000-02-09 M J Highway Technology Limited Surface covering array
WO2003024700A3 (en) * 2001-09-20 2003-07-10 Lockheed Corp Composite structure and method for constructing same
GB2388068A (en) * 2002-02-25 2003-11-05 Howard & Associates Ltd J Coating and cladding of fibre reinforced materials
GB2388068B (en) * 2002-02-25 2005-04-06 Howard & Associates Ltd J A process for coating and cladding of substrate materials

Also Published As

Publication number Publication date
GB8821268D0 (en) 1988-10-12
GB2224969B (en) 1993-07-07

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