GB2320908A - Method for forming a layered coloured rigid article - Google Patents

Method for forming a layered coloured rigid article Download PDF

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Publication number
GB2320908A
GB2320908A GB9700071A GB9700071A GB2320908A GB 2320908 A GB2320908 A GB 2320908A GB 9700071 A GB9700071 A GB 9700071A GB 9700071 A GB9700071 A GB 9700071A GB 2320908 A GB2320908 A GB 2320908A
Authority
GB
United Kingdom
Prior art keywords
sheet
article
layer
mould
composition
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
GB9700071A
Other versions
GB2320908B (en
GB9700071D0 (en
Inventor
Robert Worley Homer
Roy Stanley Pulley
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.)
PULLEY BROS Ltd
Original Assignee
PULLEY BROS 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 PULLEY BROS Ltd filed Critical PULLEY BROS Ltd
Priority to GB9700071A priority Critical patent/GB2320908B/en
Publication of GB9700071D0 publication Critical patent/GB9700071D0/en
Priority to BR9806830-0A priority patent/BR9806830A/en
Priority to AU53347/98A priority patent/AU721660B2/en
Priority to EP98900097A priority patent/EP1011957A1/en
Priority to JP52975798A priority patent/JP2001507298A/en
Priority to CA002276663A priority patent/CA2276663A1/en
Priority to PL98334441A priority patent/PL334441A1/en
Priority to PCT/GB1998/000009 priority patent/WO1998029233A1/en
Priority to TR1999/01970T priority patent/TR199901970T2/en
Priority to IL13069998A priority patent/IL130699A0/en
Priority to CN98801681A priority patent/CN1243472A/en
Priority to SK912-99A priority patent/SK91299A3/en
Priority to HU0000864A priority patent/HUP0000864A2/en
Priority to CZ992385A priority patent/CZ238599A3/en
Publication of GB2320908A publication Critical patent/GB2320908A/en
Application granted granted Critical
Publication of GB2320908B publication Critical patent/GB2320908B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Glass Compositions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Graft Or Block Polymers (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

A layered coloured rigid article is made by applying a layer of impact resistant pigmented material to a sheet of impact resistant thermoplastic polymer, forming the layered sheet to a desired shape, placing the shaped sheet into a correspondingly shaped mould so that the pigmented layer is in contact with a mould wall; supplying a curable resin composition to the exposed face of the layered sheet and curing that composition to have the same shape as the sheet and removing the formed article from the mould.

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 or 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.
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; ii) forming the layered sheet to a predetermined shape; iii) contacting the shaped layered sheet with a shaped shell in a pressure and temperature resistant mould with the pigmented layer contacting a wall ofthe 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.
Most preferably the impact resistant thermoplastic polymer is ABS and the pigmented layer is a glossy pigmented layer in a plastics carrier, e.g. a polyacrylate. Most preferably the sheet and layer are a coextrusion which is available under the trade mark "IRIDON".
Preferably the resin is a polyurethane, and formulated to form a rigid foam.
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 carrier for the pigment is preferably polymethylmethacrylate. The ABS is preferably a high impact form having the following combination of properties: an Izod impact of 380420 J/m at 23"C; a tensile strength of 30-40 MPa; a density of about 1.1 gms/cc.
Preferably the coextrusion sheet is first vacuum formed in a male mould to have 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 in 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. 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, nonmetals, composites such as titanium, carbon, aluminosilicate, 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 M5 available from Vetrotex (UK) Ltd.
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 1.5 to about three minutes. As a result the articles may be made quickly 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 other aspects the invention provides a rigid shaped article comprising an outer layer of pigmented acrylic composition, a shaped sheet of ABS sheet and a layer of cured foam; preferably the article wherein the cured foam is a polyurethane foam; and preferably the article including a fixing element anchored in the cured foam.
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 acrylonitle butadiene styrene 1 A and a layer of pigmented impact modified polymethacrylate 1B is vacuum formed in a suitable vacuum mould (not shown) at about 1600 to 1 700C to a required profile P. 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 1010C.
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.
First, a paste of a self setting filler composition 5, e.g. a filled plastics is placed in the lower half of the mould M. A lower shell half H1 is placed on the setting paste. The lower shelf half Hl has a shaped upper wall against which the profile P is placed (with the layer 1B 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. An uncured polyurethane composition 7 is then poured on to the upper, i.e. backing face 1 A of the profile P. A mat of VETROTEX material (not shown) is added to the uncured polyurethane. 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; ii) forming the layer sheet to a predetermined shape; iii) contacting the shaped layered sheet 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, including adding at least one fixing element to the curable composition whereby the fixing element is anchored in the formed article.
3. A method according to Claim 1 or 2, wherein ABS sheet is provided with keying means for engagement with the curable composition.
4. A method according to any preceding Claim, including the step of adding fibres for incorporation 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 rigid shaped article comprising a sheet of impact resistant thermoplastic polymer having on one side a rigid pigmented layer, and a layer of foamed plastics on the other side.
16. A rigid shaped article comprising an outer layer of pigmented acrylic composition, a shaped sheet of ABS sheet and a layer of cured foam
17. An article according to Claim 15 or 16, wherein the cured foam is a polyurethane foam.
18. An article according to Claim 15, 16 or 17, including a fixing element anchored in the cured foam.
GB9700071A 1997-01-03 1997-01-03 Rigid coloured article Expired - Fee Related GB2320908B (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
GB9700071A GB2320908B (en) 1997-01-03 1997-01-03 Rigid coloured article
TR1999/01970T TR199901970T2 (en) 1997-01-03 1998-01-05 Colorful hard material.
CN98801681A CN1243472A (en) 1997-01-03 1998-01-05 Rigid coloured article
EP98900097A EP1011957A1 (en) 1997-01-03 1998-01-05 Rigid coloured article
JP52975798A JP2001507298A (en) 1997-01-03 1998-01-05 Colored rigid goods
CA002276663A CA2276663A1 (en) 1997-01-03 1998-01-05 Rigid coloured article
PL98334441A PL334441A1 (en) 1997-01-03 1998-01-05 Method of manufacturing a rigid coloured article and article manufactured thereby
PCT/GB1998/000009 WO1998029233A1 (en) 1997-01-03 1998-01-05 Rigid coloured article
BR9806830-0A BR9806830A (en) 1997-01-03 1998-01-05 Rigid colored item
IL13069998A IL130699A0 (en) 1997-01-03 1998-01-05 Rigid coloured article
AU53347/98A AU721660B2 (en) 1997-01-03 1998-01-05 Rigid coloured article
SK912-99A SK91299A3 (en) 1997-01-03 1998-01-05 Rigid coloured article
HU0000864A HUP0000864A2 (en) 1997-01-03 1998-01-05 Rigid coloured article
CZ992385A CZ238599A3 (en) 1997-01-03 1998-01-05 Solid colored object and process for producing thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9700071A GB2320908B (en) 1997-01-03 1997-01-03 Rigid coloured article

Publications (3)

Publication Number Publication Date
GB9700071D0 GB9700071D0 (en) 1997-02-19
GB2320908A true GB2320908A (en) 1998-07-08
GB2320908B GB2320908B (en) 1999-04-28

Family

ID=10805524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9700071A Expired - Fee Related GB2320908B (en) 1997-01-03 1997-01-03 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)

* Cited by examiner, † Cited by third party
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446258A (en) * 1973-04-18 1976-08-18 Coast Catamaran Corp Process for making a boat hull
GB1544917A (en) * 1975-10-29 1979-04-25 Theysohn F Method and device for moulding coatings on sheeting material
EP0549809A1 (en) * 1991-07-18 1993-07-07 Sumitomo Chemical Company Limited Method of manufacturing laminated molding
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

Family Cites Families (14)

* Cited by examiner, † Cited by third party
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
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
ATE129664T1 (en) * 1988-12-22 1995-11-15 Basf Corp METHOD FOR PRODUCING A COATED, LAMINATED AUTOMOTIVE 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
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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446258A (en) * 1973-04-18 1976-08-18 Coast Catamaran Corp Process for making a boat hull
GB1544917A (en) * 1975-10-29 1979-04-25 Theysohn F Method and device for moulding coatings on sheeting material
EP0549809A1 (en) * 1991-07-18 1993-07-07 Sumitomo Chemical Company Limited Method of manufacturing laminated molding
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI Abstract Accession No. 94-363667/45 & JP 06 287323 A *

Also Published As

Publication number Publication date
CA2276663A1 (en) 1998-07-09
AU721660B2 (en) 2000-07-13
SK91299A3 (en) 2000-03-13
WO1998029233A1 (en) 1998-07-09
CN1243472A (en) 2000-02-02
CZ238599A3 (en) 1999-12-15
AU5334798A (en) 1998-07-31
GB2320908B (en) 1999-04-28
BR9806830A (en) 2002-01-02
GB9700071D0 (en) 1997-02-19
EP1011957A1 (en) 2000-06-28
PL334441A1 (en) 2000-02-28
JP2001507298A (en) 2001-06-05
IL130699A0 (en) 2000-06-01
TR199901970T2 (en) 2000-08-21
HUP0000864A2 (en) 2000-08-28

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Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040103