GB2057967A - Covered foamed materials - Google Patents

Covered foamed materials Download PDF

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Publication number
GB2057967A
GB2057967A GB8028270A GB8028270A GB2057967A GB 2057967 A GB2057967 A GB 2057967A GB 8028270 A GB8028270 A GB 8028270A GB 8028270 A GB8028270 A GB 8028270A GB 2057967 A GB2057967 A GB 2057967A
Authority
GB
United Kingdom
Prior art keywords
foamed material
laminate
foamed
relatively thick
block
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
GB8028270A
Other versions
GB2057967B (en
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.)
FRELEN Ltd
Original Assignee
FRELEN 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 FRELEN Ltd filed Critical FRELEN Ltd
Priority to GB8028270A priority Critical patent/GB2057967B/en
Publication of GB2057967A publication Critical patent/GB2057967A/en
Application granted granted Critical
Publication of GB2057967B publication Critical patent/GB2057967B/en
Expired 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F7/00—Processes not otherwise provided for
    • B31F7/006—Processes not otherwise provided for edges, e.g. sheet edges
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • 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
    • B32B2266/08—Closed cell 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

A laminate of a foamed material (12) and a covering material (10) in which, at at least one edge of the laminate, the foamed material (16) is thin relative to the remainder thereof, such that this edge can be folded against a surface of the relatively thick portion of the foamed material. On folding, and bonding at the mutual foamed material boundary thus produced, a covered foamed product is produced. In an alternative embodiment a covering layer (20) is laminated to a thin layer (21) of foamed material, which is laminated to a thick block (23) of foamed material to leave an edge (26) of the laminate free of the thick block (23). <IMAGE>

Description

SPECIFICATION Covered foamed materials This invention relates to covered foamed materials produced by lamination, their production, and their use as, for example, cushions or mats.
According to a first aspect of the present invention, at at least one edge of a laminate of a foamed material and a covering material, the foamed material is thin relative to the remainder thereof, such that the said edge can be folded against a surface of the relatively thick portion of the foamed material.
According to a second aspect of the invention, a covered foamed product is manufactured by folding the said edge of a laminate according to the invention against the said surface of the relatively thick portion of the foamed material, and bonding the foamed material at the mutual boundary thus produced.
The foamed material may be, for example, an open or closed-cell thermoplastic material.
It may be polyurethane but is preferably crosslinked closed-cell polyethylene. The covering material may be, for example, of ABS, PVC or a textile material.
In one embodiment of a laminate of the invention, the relatively thin and relatively thick portions of the foamed material are integral. In this embodiment, the covering material may be laminated directly onto a block of foamed material, there being substantially no overhang at at least one edge of the block. A part of the block at that edge may then be removed to leave a relatively thin portion of foamed material. Removal may be effected by routing or by cutting with a band knife or hot blade; most preferably, a hot wire is used.
Before removal of part of the block at the edge thereof, the laminate is preferably produced by laminating a covering material onto a face of an elongate block of foamed material such that portions of the covering material extend beyond the longitudinal edges of the block, and cutting the product transversely into a plurality of individual lengths. Removal of part of the block in each length is then affected adjacent to the cut.
In a second embodiment of the laminate according to the invention, the relatively thin portion of the foamed material is formed of a layer of such material laminated to, and substantially co-extensive with, the covering material and the relatively thick portion of the foamed material is formed of the said layer and, bonded thereto, a block of such material.
In this embodiment, a relatively thick block and a relatively thin layer of foamed material are used, the layer being laminated to the block and to the covering material and extending beyond at least one edge of the block.
It is particularly preferred if the edge of the laminate which can be folded against a surface of the relatively thick portion of the foamed material is of a sufficient size, relative to the thickness of the relatively thick portion, that it can be folded onto a face of the relatively thick portion opposite to that face of the relatively thick portion to which the covering material is laminated. Such a laminate can be used in the method of the invention to produce a covered foamed product in which the covering material covers all exposed faces of the relatively thick portion of the foamed material, when the product is laid on a substrate. It is often preferred that portions of the covering material extend beyond the foamed material, whether or not at the edge of the foamed material at which the relatively thin portion is.These extending portions can then be folded against exposed portions of the foamed material and adhesive-bonded thereto.
Bonding of two surfaces of foamed material may be achieved by heating, using for example a hot air gun. Lamination of the covering material to foamed material may be achieved by flame-bonding.
Where a covered foamed product produced by the method of the invention is to be used as a mat, a non-slip backing may be applied to the exposed surface of the foamed material (opposite to that face of the relatively thick portion of the foamed material to which the covering material is laminated). For example, a stabilising mesh can be bonded to the exposed surface, and the non-slip backing can be applied to this mesh in liquid form. Alternatively, a non-slip coated mesh may be bonded to the exposed surface.
It will be apparent that the invention can be applied to various shapes of foamed material blocks, depending on the use to which the ultimate covered foamed product is to be put.
For example, where a rectangular block is used, parts of the covering material adjacent the corners of the block can be stitched together.
In order to facilitate mass-production of covered foamed products, a laminate according to the invention can be produced from roll stock in which the covering material is made of the same size and shape as a block of foamed material. The roll can then be cut to appropriate lengths, all four edges of each length then having a part of the foamed material removed, followed by folding and bonding in the manner described above.Alternatively, a blank can be produced from roll stock in which the covering material overhangs those edges of the block of foamed material which extend in the direction of production of the roll; after the roll has been cut to appropriate lengths, and following removal of part of the block adjacent to the cuts, the longitudinal overhanging parts of the covering material may be adhesive-bonded to the foamed block while those edges where removal has been effected are heat-bonded to the block.
In order to produce a laminate in accordance with the second embodiment described above, a blank may be produced in continuous roll form in which a covering material has laminated thereon a relatively thin layer of foamed material to which is laminated a relatively thick block of the same of different foamed material. If desired, the relatively thin layer may extend beyond all edges of the relatively thick block. The roll may then be cut transversely into lengths, and part of the foamed material adjacent to the cuts may then be removed in the manner described for the first embodiment of the invention. All the edges of each length may then be folded against, and bonded to, the relatively thick block.
Covered foamed products manufactured in accordance with the invention have an advantage over known products in which bonding is achieved by the use of adhesive. The novel products are more durable, being less subject to separation of the covering material and the foamed material.
The invention will now be described by of example with reference to the accompanying drawings (which are all sectional views), in which Figure 1 illustrates a laminate which can be used as a starting material for the production of a laminate according to the invention; Figure 2 illustrates an embodiment of a laminate according to the invention; Figures 3 and 4 illustrate successive steps in the production of a covered foamed product by the method of the invention; and Figure 5 illustrates a second embodiment of a laminate according to the invention.
Fig. 1 shows a covering material 10 laminated onto a surface 11 of a block 12 of foamed material. Fig. 2 shows the same laminate as Fig. 1, but in which a part 13 of the block 12 at an edge 14 has been removed to produce a new edge 15 of the foamed material and a relatively thin portion 16 of the foamed material.
Figs. 3 and 4 show how, in two stages, the edge of the laminate may be folded against the side surface 17 of the block, the foamed material being bonded at the mutual boundary thus produced at the surface 17. The portion 14 is sufficiently long that an overlap 18 exists; this overlap can be folded against, and bonded to, a further surface 19 of the block.
Fig. 5 illustrates a covering material 20 which is laminated to a relatively thin layer 21 of foamed material which is laminated onto a surface 22 of a relatively thick block 23 of the foamed material. At an edge 24 of the laminate of the covering material and the relatively thin layer, there is an overhang beyond the edge 25 of the block.

Claims (13)

1. A laminate of a foamed material and a covering material, in which, at at least one edge of the laminate, the foamed material is thin relative to the remainder thereof, such that said edge can be folded against a surface of the relatively thick portion of the foamed material.
2. A laminate according to claim 1 in which the relatively thin and relatively thick portions of the foamed material are integral.
3. A laminate according to claim 2 which has been produced by removing part of the foamed material from a laminate of a block of a foamed material and a covering material.
4. A laminate according to claim 3 which has been produced by laminating a covering material onto a face of an elongate block of foamed material such that portions of the covering material extend beyond the longitudinal edges of the block, cutting the product transversely into a plurality of individual lengths, and removing part of the foamed material of each length adjacent to the cut.
5. A laminate according to claim 1 in which the relatively thin portion of the foamed material is formed of a layer of such material laminated to, and substantially coextensive with, the covering material and the relatively thick portion of the foamed material is formed of the said layer and, bonded thereto, a block of such material.
6. A laminate according to any preceding claim in which the foamed material comprises cross-linked closed cell polyethylene.
7. A laminate according to any preceding claim in which the said edge can be folded against the said surface and onto a face of the relatively thick portion of the foamed material opposite to that face of the relatively thick portion of the foamed material to which the covering material is laminated.
8. A laminate according to any preceding claim in which portions of the covering material extend beyond the foamed material.
9. A laminate according to claim 2 substantially as illustrated in Fig. 2 of the accompanying drawings.
10. A laminate according to claim 3 substantially as illustrated in Fig. 5 of the accompanying drawings.
11. A method of manufacturing a covered foamed product, which comprises folding the said edge of a laminate according to any preceding claim against the said surface of the relatively thick portion of the foamed material, and bonding the foamed material at the mutual boundary thus produced.
12. A method according to claim 11 in which the bonding is achieved by heating.
13. A product according to claim 1 substantially as illustrated in Fig. 3 or Fig. 4 of the accompanying drawings.
13. A method according to claim 11 or 12 in which the laminate is as claimed in claim 4 or claim 8 and the portions of the covering material extending beyond the foamed material are folded against the foamed material and bonded thereto.
14. A covered foamed product manufactured by a method according to any of claims 1 1 to 1 3.
15. A product according to claim 14 substantially as illustrated in Fig. 4 of the accompanying drawings.
CLAIMS (2 Dec 1980)
1. A covered foamed product comprising a laminate of a foamed material and a covering material, in which, at at least one edge of the laminate, the foamed material is thin relative to the remainder thereof, and the said edge is folded against, and bonded to, a surface of the relatively thick portion of the foamed material.
2. A product according to claim 1 in which the relatively thin and relatively thick portions of the foamed material are integral.
3. A product according to claim 2 in which the laminate, prior to folding and bonding, has been produced by removing part of the foamed material from a laminate of a block of a foamed material and a covering material.
4. A product according to claim 3 in which the laminate, prior to folding and bonding, has been produced by laminating a covering material onto a face of an elongate block of foamed material such that portions of the covering material extend beyond the longitudinal edges of the block, cutting the product transversely into a plurality of individual lengths, and removing part of the foamed material of each length adjacent to the cut.
5. A product according to claim 1 in which the relatively thin portion of the foamed material is formed of a layer of such material laminated to, and substantially coextensive with, the covering material, and the relatively thick portion of the foamed material is formed of the said layer and, bonded thereto, a block of such material.
6. A product according to any preceding claim in which the foamed material comprises cross-linked closed-cell polyethylene.
7. A product according to any preceding claim in which the said edge is folded against, and bonded to, the said surface and a face of the relatively thick portion of the foamed material opposite to that face of the relatively thick portion of the foamed material to which the covering material is laminated.
8. A product according to any preceding claim in which portions of the covering material extend beyond the foamed material.
9. A product according to claim 8 in which the portions of the covering material extending beyond the foamed material are folded against the foamed material and bonded thereto.
10. A product according to any preceding claim in which the bonding is achieved by heating.
11. A product according to claim 1 in which the laminate, prior to folding and bonding, is substantially as illustrated in Fig. 2 of the accompanying drawings.
12. A product according to claim 1 in which the laminate, prior to folding and bonding, is substantially as illustrated in Fig. 5 of the accompanying drawings.
GB8028270A 1979-09-05 1980-09-02 Covered foamed materials Expired GB2057967B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8028270A GB2057967B (en) 1979-09-05 1980-09-02 Covered foamed materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7930801 1979-09-05
GB8028270A GB2057967B (en) 1979-09-05 1980-09-02 Covered foamed materials

Publications (2)

Publication Number Publication Date
GB2057967A true GB2057967A (en) 1981-04-08
GB2057967B GB2057967B (en) 1983-04-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB8028270A Expired GB2057967B (en) 1979-09-05 1980-09-02 Covered foamed materials

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GB (1) GB2057967B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755412A (en) * 1981-11-05 1988-07-05 Tetra Pak International Ab Packing laminate in the form of a web and a method for manufacturing the same
EP0581035A1 (en) * 1992-07-30 1994-02-02 Gebr. Happich GmbH Method for manufacturing a moulded plastic article
EP1627720A1 (en) * 2004-08-04 2006-02-22 Grupo Antolin Ingenieria, S.A. Process for manufacturing a headliner for the interior of an automobile and installation for use in the process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755412A (en) * 1981-11-05 1988-07-05 Tetra Pak International Ab Packing laminate in the form of a web and a method for manufacturing the same
EP0581035A1 (en) * 1992-07-30 1994-02-02 Gebr. Happich GmbH Method for manufacturing a moulded plastic article
US5565053A (en) * 1992-07-30 1996-10-15 Gebr. Happich Gmbh Method of manufacturing a plastic molding
EP1627720A1 (en) * 2004-08-04 2006-02-22 Grupo Antolin Ingenieria, S.A. Process for manufacturing a headliner for the interior of an automobile and installation for use in the process

Also Published As

Publication number Publication date
GB2057967B (en) 1983-04-07

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950902