WO1994023925A1 - Process for the realization of serigraphed elements in thermoplastic material with transparent parts able to be illuminated from behind - Google Patents

Process for the realization of serigraphed elements in thermoplastic material with transparent parts able to be illuminated from behind Download PDF

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Publication number
WO1994023925A1
WO1994023925A1 PCT/IT1993/000139 IT9300139W WO9423925A1 WO 1994023925 A1 WO1994023925 A1 WO 1994023925A1 IT 9300139 W IT9300139 W IT 9300139W WO 9423925 A1 WO9423925 A1 WO 9423925A1
Authority
WO
WIPO (PCT)
Prior art keywords
transparent
sheet
serigraphed
thermo
semi
Prior art date
Application number
PCT/IT1993/000139
Other languages
French (fr)
Inventor
Marco Pertoldi
Original Assignee
Serigrafia Pertoldi S.N.C. Di Marco Pertoldi & C.
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 Serigrafia Pertoldi S.N.C. Di Marco Pertoldi & C. filed Critical Serigrafia Pertoldi S.N.C. Di Marco Pertoldi & C.
Priority to AU60437/94A priority Critical patent/AU6043794A/en
Publication of WO1994023925A1 publication Critical patent/WO1994023925A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00Arrangement of adaptations of instruments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B29C37/0032In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14811Multilayered articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B29C2037/0042In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied in solid sheet form, e.g. as meltable sheet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10Forming by pressure difference, e.g. vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0025Opaque
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings
    • B29L2031/3008Instrument panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/722Decorative or ornamental articles

Definitions

  • thermoplastic material printed with transparent parts able to be
  • 2 0 recorder, tachometer, temperature indicators, knobs, switches, levers, 2 1 etc., and the latter allowing underlying lighting devices for controls, 2 2 signalling, etc. to be made visible.
  • the underlying plastic material must be injected at a very low temperature, which decreases the number of pieces discarded, but at the same time compromises its adhesion to the superficial sheet. Disclosure of Invention The aim of the present invention is to obviate the aforementioned drawbacks and obtain an overlay panel as shown, at a reduced cost, of high quality and without both present and future defects.
  • Figure 1 is a schematic view of the form of realization of the double- layered serigraphed sheet according to most commonly used prior techniques ;
  • Figure 2 is a schematic view of the passage under hot calendering of the double-layered sheet of Fig. l to thermo-glue together the two layers to form a single sheet.
  • Figure 3 represents a sectional schematic view of a way of shaping, under pressure and heat, the serigraphed sheet into the desired shape of the semi-finished product.
  • Figure 4 the semi-finished product obtained from a single sheet after moulding and die-cutting.
  • Figure 5 represents schematically the inclusion of the semi-finished product of Fig. 4 between mould and counter-mould for the subsequent injection under pressure of a plastic material for the structural thickening of its internal surface.
  • Figure 6 represents the realization form of the serigraphed sheet according to this invention.
  • Figure 7 represents the finished overlay panel obtained with the new sheet according to this invention.
  • Figure 8 represents an enlargement of the stratification of the new sheet.
  • Figure 9 represents, according to this invention, a cross-section of the completely finished overlay panel showing the underlying respective thickening structural support made of a plastic material.
  • the most commonly used prior technique consists of internally serigraphing 2, a sheet 1, leaving small transparent windows 25 and then varnishing the internal surface 3.
  • a second sheet ( T) varnishing the counter-surface (3), and hot calendering the two sheets to obtain a single thermo-glued sheet (5) Fig. 1 and 2.
  • said sheet is shaped by means of thermo-moulding under pressure between a perimetrically sealed mould and counter-mould (6-6' Fig.
  • said protective transparent varnish is a varnish based on acrylic oligomers and monomers with photo-initiators and fillers.
  • the thick material for the back-injection is a mixture of Polycarbonate and AcrylonitrylButadineStyrene or others. With this can be obtained a perfect junction and compatibility of integration between the materials.

Abstract

Process for the realization of serigraphed elements in thermoplastic material with transparent parts able to be illuminated from behind, as for example overlay panels (9), of the type which provides: the realization of a sheet in a plastic, transparent and thermodeformable material (1), serigraphed (2), to obtain opaque and transparent parts such as small windows (25), containing designs and characters and/or indications and/or references, subsequently varnished for the protection of the said serigraphs (3); the formation by thermo-moulding of the said serigraphed and varnished sheet, and the respective die-cutting for the shape definition of the semi-finished product (5); the injection under pressure of a reinforcing plastic material which gives areas of thickness and definition on the interior surface (7) of the said semi-finished product (5), to obtain a ready to use finished overlay panel, having holes (51) and small windows (23) with respective indications and information, in which the said sheet (1) is serigraphed on its external surface (2) and the said external surface is coated with a protective layer of transparent varnish to finish the respective surface (3); the sheet so defined (10) is: shaped by thermo-moulding, and die-cut for the shape definition of the semi-finished product (5') to give the final shape of the overlay panel; to the internal surface of said die-cut semi-finished product is applied, by injection under pressure, a reinforcing plastic material (7) which gives the final thickness to said overlay panel (9) which is thus finished and ready for use, including holes (51) and small windows (25) with respective indications and information.

Description

1 DESCRIPTION
2 PROCESS FOR THE REALIZATION OF SERIGRAPHED ELEMENTS IN
3 THERMOPLASTIC MATERIAL WITH TRANSPARENT PARTS ABLE TO
#
4 BE ILLUMINATED FROM BEHIND.
* 5 Technical Field
6 This invention as its subject has a process for the realization of elements
7 in thermoplastic material printed with transparent parts able to be
8 illuminated from behind.
9 The product resulting from the said process is also object of the present 1 0 invention .
1 1 Background Art
1 2 At the present stage of technology is well known the need to realize
1 3 dashboards made of plastic material particularly for vehicles, electric
1 4 appliances and similar, which have a shaped form of a more or less
1 5 constant thickness of some millimetres, for receiving and/or covering
1 6 command and visual signalling apparatuses, and therefore involving as
1 7 well as a generally complex shaping, holes and small transparent
1 8 windows that consent respectively, the former the insertion of control
1 9 and signalling and/or command apparatuses as for example mileage
2 0 recorder, tachometer, temperature indicators, knobs, switches, levers, 2 1 etc., and the latter allowing underlying lighting devices for controls, 2 2 signalling, etc. to be made visible.
2 3 Furthermore said elements in plastic material, hereafter briefly defined
2 4 in this description as overlay panels, need to have their respective
2 5 external surfaces endowed with writing, designs, etc., both on an opaque
2 6 background and on a transparent background.
2 7 Hereafter for ease of definition the external side of the overlay panel
2 8 will be defined as the one which the operator sees and the internal side as the opposite side, or in other words the one in the direction of the electric instrumentation and respective visual signalling apparatuses and lighting. The realization of these overlay panels is presently carried out by means of the following procedures: • applying a serigraph onto the external side of a sheet of a transparent polycarbonate plastic material as for example Makrofol Lexa, Bayfol, etc. (thickness from mm 0.50 to 0.75): • coating the serigraph with a transparent varnish; • coating, with similar transparent varnish, a transparent sheet made of a plastic material and analogous to the preceding one, and • union of the two sheets by means of calendering at a thermo-glueing temperature to form a single sheet including the serigraphed drawings and writing, small transparent windows and opaque surfaces; • thermo-moulding, generally at high temperatures and under compressed air pressure or vacuum, to obtain a permanent deformation of the sheet, according to the form desired for the dashboard: • cutting of the moulded sheet to obtain the defined perimetrical shape of the semi-finished product of the overlay panel; • application between a mould and counter-mould of the covering of the overlay panel so obtained and subsequent injection of a plastic material to give a certain thickness on the internal surface of said overlay panel, taking care not to fill said holes in said overlay panel and not to introduce thick and dull material inside in connection with said small visualization windows; for the formation of a structurally finished and self-supporting overlay panel. This way of obtaining the aforementioned overlay panels is complex and costly and has particular defects which include swelling (bulging of said windows) caused by surface tensions due to recovery of stratification of the sheet. In particular, if subjected to environments with a high temperature of recovery (temperature resistance test), for example as may be verified by leaving these overlay panels in the summer sun, the following can be seen : • flaking of the serigraphed sheet away from the underlying support; • more or less obvious bulging in the portion of sheet forming said window ; • flaking (separation of the two sheets), etc.. To avoid said drawbacks, there is a technique that uses only a single sheet of covering, to the interior of which is applied a serigraph which is then coated on the inside with a transparent varnish that also acts as a protective coating for the serigraph, before finally proceeding to the injection of the plastic material that forms the internal structural th ickening . This solution has the drawback that it requires much attention in the use of materials to cover the serigraph that, because of the high temperature, can easily be damaged resulting in a high level of wastage. Furthermore it does not guarantee a perfect sticking of the sheet onto the underlying plastic material, precisely due to the need to cover the seri graph . In fact, to reduce wastage as much as possible, the underlying plastic material must be injected at a very low temperature, which decreases the number of pieces discarded, but at the same time compromises its adhesion to the superficial sheet. Disclosure of Invention The aim of the present invention is to obviate the aforementioned drawbacks and obtain an overlay panel as shown, at a reduced cost, of high quality and without both present and future defects. The problems mentioned above are however solved as successively described and claimed, in particular according to the characteristics of claim 1, which claims: a process for the realization of serigraphed elements in thermoplastic material with transparent parts (with eventual designs and/or writing) able to be illuminated from behind, as for example an overlay panel (9), of the type which provides: • the realization of a transparent sheet in a thermo-deformable plastic material, subsequently serigraphed, for obtaining opaque and transparent parts such as small windows, including designs and characters and/or indications and/or references, subsequently varnished for the protection of said serigraphy and for the finishing of the surface on the external side; • the shaping by means of thermo-moulding of said serigraphed and varnished sheet, and the respective die-cutting for shaping to the design of the semi-finished product; • the injection under pressure of a reinforcing plastic material which gives areas of thickness and definition on the internal surface of said serigraphed thermo-moulded and die-cut sheet, to obtain a finished overlay panel ready for use, including holes and small windows with respective indications and information, characterized by the fact that: • said sheet is serigraphed on its external surface, and • said external surface is coated with a layer of protective transparent varnish to finish the respective surface: • the sheet so defined is: - shaped by means of thermo-moulding, and - die-cut for the shape definition of the semi-finished product to the form of the final shape of the overlay panel; " to the internal surface of said die-cut semi-finished product is applied, by injection under pressure, a reinforcing plastic material which gives the final thickness to said overlay panel which is thus finished and ready for use, including holes and small windows with respective indications and information. In this way all the above-mentioned problems are resolved and all the above-mentioned drawbacks are obviated by using a process the cost of which is more advantageous when compared to that of the traditional technique using a double sheet, this being justified by the fact that a single stratum is used and the calendering phase is avoided. These and other advantages will appear from the successive description of preferential illustrative solutions of realization in connection with the drawings attached. Figure 1 is a schematic view of the form of realization of the double- layered serigraphed sheet according to most commonly used prior techniques ; Figure 2 is a schematic view of the passage under hot calendering of the double-layered sheet of Fig. l to thermo-glue together the two layers to form a single sheet. Figure 3 represents a sectional schematic view of a way of shaping, under pressure and heat, the serigraphed sheet into the desired shape of the semi-finished product. Figure 4 the semi-finished product obtained from a single sheet after moulding and die-cutting. Figure 5 represents schematically the inclusion of the semi-finished product of Fig. 4 between mould and counter-mould for the subsequent injection under pressure of a plastic material for the structural thickening of its internal surface. Figure 6 represents the realization form of the serigraphed sheet according to this invention. Figure 7 represents the finished overlay panel obtained with the new sheet according to this invention. Figure 8 represents an enlargement of the stratification of the new sheet. Figure 9 represents, according to this invention, a cross-section of the completely finished overlay panel showing the underlying respective thickening structural support made of a plastic material. As is disclosed by the above figures: the most commonly used prior technique consists of internally serigraphing 2, a sheet 1, leaving small transparent windows 25 and then varnishing the internal surface 3. In a second sheet ( T), varnishing the counter-surface (3), and hot calendering the two sheets to obtain a single thermo-glued sheet (5) Fig. 1 and 2. Subsequently, said sheet is shaped by means of thermo-moulding under pressure between a perimetrically sealed mould and counter-mould (6-6' Fig. 3) which provides the shaping mould 63' on one side and a counter- chamber of air pressure 63 by means of an entry nozzle 62. After thermo-moulding, the sheet is cut by means of die-cutting thus obtaining the semi-finished product as indicated in Fig. 4 reference 5', with small windows 25 and holes 51. Finally, said semi-finished product (5') is inserted between the mould and counter-mould (8-8' Fig. 5) and via "i" is injected under pressure an internal thickness of plastic material (for example ABS, polycarbonate, polypropylene, or others) 7 with the intention of allowing light to the small windows and holes 51 pre-die-cut on said semi-finished product 5'. Instead according to this invention, only one sheet is used, Fig. 6, on which the serigraphing 2 and varnishing 3 are carried out on its external surface "ES" instead of on its internal surface "IS". Whereafter one proceeds to the thermo-moulding, die-cutting and injection under pressure (Figs. 3,4,5) as in the usual process. In this way not only is a layer of transparent polycarbonate film saved, but also a layer of transparent varnish, as well as a thermo-glueing phase, and lastly the possibility of damaging the varnish and the adjacent serigraphy when in direct contact with the material being injected under pressure is obviated, as these two are found on the opposite side in contact with the mould and therefore at a better controlled temperature. Furthermore the adherence between the two plastic materials by thermosoldering-thermofusion during injection will be done in a much more effective and safe way. Advantageously the edges in correspondence with said holes are dented towards the interior by the die-cutting process. Thus is obtained a more finished external area and the effect of flaking or detachability of the external shell (Fig.9) is eliminated. Advantageously said protective transparent varnish is a varnish based on acrylic oligomers and monomers with photo-initiators and fillers. Just as advantageously the thick material for the back-injection is a mixture of Polycarbonate and AcrylonitrylButadineStyrene or others. With this can be obtained a perfect junction and compatibility of integration between the materials.

Claims

Claims 1. Process for the realization of serigraphed elements in thermoplastic material with transparent parts able to be illuminated from behind, as for example overlay panels (9), of the type which provides: • the realization of a sheet in a thermo-mouldable transparent plastic material (1 ), serigraphed (2), to obtain opaque and transparent parts such as windows (25), including designs and characters and/or indications and/or references, subsequently varnished for the protection of the said serigraph (3); • the shaping by thermo-moulding of the said serigraphed and varnished sheet ( 1 ,2,3), and the respective die-cutting for the shape definition of a semi-finished product (5'); • the injection under pressure of a reinforcing plastic material which gives areas of thickness and definition on the internal surface (7) of said semi-finished product (5'), to obtain a finished overlay panel ready for use, including holes (51 ) and/or transparent small windows (23) with respective indications and information, characterized by the fact that: • the said sheet (1 ) is serigraphed on its external surface (2) and • the said external surface is coated with a layer of transparent protective varnish to finish the respective surface (3); " the sheet so defined (10) is: - shaped by thermo-moulding, and - die-cut for the shape definition of the semi-finished product (5') to give the final shape of the overlay panel: " to the internal surface of said die-cut semi-finished product is applied, by injection under pressure, a reinforcing plastic material (7) which gives the final thickness to said overlay panel (9) which is thus finished and ready for use, including holes (51 ) and small windows (25) with 1 respective indications and information.
2 2. Overlay panel in plastic material of the type with holes and
3 transparent small windows, having a serigraphed covering sheet
4 thickened internally at least in part by injections of another plastic
5 material, obtained according to a process which is in claim 1 ,
6 characterised in that:
7 - said transparent covering sheet is single (1 );
8 - said serigraph is applied externally (2-SE);
9 - said serigraph is covered with transparent varnish to finish it
I 0 externally (3-SE);
I I - said internal injection of plastic material (7) is thermo-glued directly 1 2 onto said transparent plastic sheet (1 ) by thermo-fusion.
1 3 3. Overlay panel according to claim 2, characterized by the fact that the
1 4 edge in correspondence with the holes is dented towards the interior by
1 5 thermo-moulding and die-cutting.
1 6 4. Overlay panel according to claim 2, characterized by the fact that said 7 protective transparent varnish (3) is a filling varnish based on acrylic 8 oligomers and monomers having photo-initiators. 9 5. Overlay panel according to claim 2, characterized by the fact that the 0 thickening material for internal injection (7) is a mixture of 1 polycarbonate and acrilonitrylbutadinestyrene. 2 6. Overlay panel according to claim 2, characterized by the fact that the 3 material constituting the said transparent covering sheet (1 ) is a plastic 4 material based on polycarbonate.
PCT/IT1993/000139 1993-04-19 1993-12-28 Process for the realization of serigraphed elements in thermoplastic material with transparent parts able to be illuminated from behind WO1994023925A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60437/94A AU6043794A (en) 1993-04-19 1993-12-28 Process for the realization of serigraphed elements in thermoplastic material with transparent parts able to be illuminated from behind

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD930067A IT1262107B (en) 1993-04-19 1993-04-19 PROCEDURE FOR THE PRODUCTION OF THERMOPLASTIC ELEMENTS SERIGRAPHED WITH TRANSPARENT PARTS THAT CAN BE ILLUMINATED FROM THE BACK
ITUD93A000067 1993-04-19

Publications (1)

Publication Number Publication Date
WO1994023925A1 true WO1994023925A1 (en) 1994-10-27

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Country Status (3)

Country Link
AU (1) AU6043794A (en)
IT (1) IT1262107B (en)
WO (1) WO1994023925A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865895A1 (en) * 1997-03-18 1998-09-23 AFE Plasturgie Method for making a dashboardfront from at least three materials for vehicle heating
US6117384A (en) * 1997-11-06 2000-09-12 General Electric Co. In-mold decorating process
GB2350583A (en) * 1999-03-09 2000-12-06 Yoshida Kogyo Kk A method of fabricating a transparent resin cover using injection moulding.
FR2824510A1 (en) * 2001-05-14 2002-11-15 Peugeot Citroen Automobiles Sa Motor vehicle dashboard and instrument panel comprising inner reinforcing element with window through which the illuminated symbols can be viewed
WO2004067310A1 (en) * 2003-01-29 2004-08-12 Volkswagen Ag Electrical combination instrument

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2003490A (en) * 1977-09-05 1979-03-14 Ucb Sa Radio-hardenable organic binders
DE8816011U1 (en) * 1988-12-01 1989-05-03 Niebling, Curt, 8122 Penzberg, De
EP0448249A2 (en) * 1990-03-19 1991-09-25 Illinois Tool Works Inc. Method and die for forming a shaped component
DE4015125A1 (en) * 1990-05-11 1991-11-14 Kostal Leopold Gmbh & Co Kg Prodn. of colour printed mouldings - by thermo-forming polycarbonate film which is silk screen printed and adhesive coated on underside before bonding it to moulded base

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2003490A (en) * 1977-09-05 1979-03-14 Ucb Sa Radio-hardenable organic binders
DE8816011U1 (en) * 1988-12-01 1989-05-03 Niebling, Curt, 8122 Penzberg, De
EP0448249A2 (en) * 1990-03-19 1991-09-25 Illinois Tool Works Inc. Method and die for forming a shaped component
DE4015125A1 (en) * 1990-05-11 1991-11-14 Kostal Leopold Gmbh & Co Kg Prodn. of colour printed mouldings - by thermo-forming polycarbonate film which is silk screen printed and adhesive coated on underside before bonding it to moulded base

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865895A1 (en) * 1997-03-18 1998-09-23 AFE Plasturgie Method for making a dashboardfront from at least three materials for vehicle heating
FR2760997A1 (en) * 1997-03-18 1998-09-25 Afe Plasturgie METHOD FOR PRODUCING A CONTROL PANEL FACADE IN AT LEAST THREE MATERIALS FOR VEHICLE HEATING
US6066225A (en) * 1997-03-18 2000-05-23 Afe Plasturgie Method for producing a control panel fascia made of at least three materials for vehicle heating
US6117384A (en) * 1997-11-06 2000-09-12 General Electric Co. In-mold decorating process
GB2350583A (en) * 1999-03-09 2000-12-06 Yoshida Kogyo Kk A method of fabricating a transparent resin cover using injection moulding.
FR2824510A1 (en) * 2001-05-14 2002-11-15 Peugeot Citroen Automobiles Sa Motor vehicle dashboard and instrument panel comprising inner reinforcing element with window through which the illuminated symbols can be viewed
WO2004067310A1 (en) * 2003-01-29 2004-08-12 Volkswagen Ag Electrical combination instrument

Also Published As

Publication number Publication date
IT1262107B (en) 1996-06-19
ITUD930067A0 (en) 1993-04-19
AU6043794A (en) 1994-11-08
ITUD930067A1 (en) 1994-10-20

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