EP0291026A2 - Procédé et installation pour rendre mates et laineuses des matières polymères - Google Patents

Procédé et installation pour rendre mates et laineuses des matières polymères Download PDF

Info

Publication number
EP0291026A2
EP0291026A2 EP88107528A EP88107528A EP0291026A2 EP 0291026 A2 EP0291026 A2 EP 0291026A2 EP 88107528 A EP88107528 A EP 88107528A EP 88107528 A EP88107528 A EP 88107528A EP 0291026 A2 EP0291026 A2 EP 0291026A2
Authority
EP
European Patent Office
Prior art keywords
solid particles
thread
products
matt
particles
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
EP88107528A
Other languages
German (de)
English (en)
Other versions
EP0291026B1 (fr
EP0291026A3 (en
Inventor
Heinz Dipl.-Ing. Körber
Rudolf Dipl.-Ing. Hanke
Helmar Dr.-Ing. Pässler
Bernd Kessler
Manfred Prof.Dr.rer.nat.habil. Rätzsch
Adolf Dr. Heger
Karlheinz Dipl.-Ing. Kolletzky
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.)
VEB Greika Greiz Weberei und Veredelung
Original Assignee
VEB Greika Greiz Weberei und Veredelung
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
Priority claimed from DD30272387A external-priority patent/DD264111A3/de
Priority claimed from DD87302724A external-priority patent/DD264112A3/de
Application filed by VEB Greika Greiz Weberei und Veredelung filed Critical VEB Greika Greiz Weberei und Veredelung
Publication of EP0291026A2 publication Critical patent/EP0291026A2/fr
Publication of EP0291026A3 publication Critical patent/EP0291026A3/de
Application granted granted Critical
Publication of EP0291026B1 publication Critical patent/EP0291026B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C29/00—Finishing or dressing, of textile fabrics, not provided for in the preceding groups

Definitions

  • the invention relates to a method and a device for producing matt and rough flat, ribbon or thread-like polymer products, preferably natural fiber-like matt and rough textile products made of synthetic fibers, in particular synthetic fiber materials or matt and rough polymer films with low transparency.
  • polyester and polyamide fiber materials take a leading position among the synthetic fiber materials.
  • the filaments of these two fibers are cylindrical and have a smooth surface, apart from the low proportion of profile silk spun with special nozzles.
  • these fibers and the products made from them have a shiny effect and they feel smooth (soapy, greasy).
  • the spun-matted fibers also have a considerable sheen.
  • fabrics made of natural fibers, especially wool and cotton have a matt appearance and a rough (woolly) feel.
  • the sheen and feel of textile fabrics are properties that are dictated by fashion.
  • the general idea of high quality textile products is based on those made from natural fibers.
  • the development of chemical fibers and their modification was and is therefore aimed at the production of fibers and products that combine new, positive usage properties and proven (and usual) properties of natural fibers.
  • a polymer product with fine particles for example with sand particles, be used for the production of matt and rough flat, ribbon or thread-shaped polymer products, preferably matt and rough textile products made of synthetic fibers, similar to natural fibers, or matt and rough polymer films with low transparency. to act upon.
  • the application can also take place in that the polymer product is passed through moving solid particles (WP B 24 C / 272 461).
  • the material web to be irradiated is guided over a deflection roller and the abrasive hits the material web from an acceleration channel opposite the deflection roller.
  • the invention is based on the object of using a method and a device to create synthetic fiber materials with a natural fiber-like feel and gloss as well as matt, rough and less transparent polymer films.
  • the object is achieved in that sheet-like, tape-like or thread-like polymeric products are acted upon with fine particles of organic or inorganic solids. It is advantageous to blast the solid particles mechanically or by means of a gas or liquid stream onto continuously moving, endless sheet-like, tape-like or thread-like polymer products.
  • Sand, corundum, glass or metal particles preferably with a particle size of 0.1 to 2 mm, can be used as solid particles.
  • the individual solid particles can consist of a single substance or of several substances. Mixtures of different solid particles can also be used.
  • the solid particles can consist wholly or partly of substances which are partially transferred to the sheet-like, tape-like or thread-like polymeric products when they are loaded.
  • the loading can also take place in that the endless sheet, band or thread-shaped polymer products are continuously passed through stationary or moving solid particles.
  • the sheet-like, tape-like or thread-like polymeric products can also be applied in the swollen state. It is expedient to apply preparation agents to the sheet-like, tape-like or wheel-shaped polymeric products before the application of solid particles, or to dye them, or to print or coat them.
  • the device for producing matt and rough flat or strip-shaped polymeric products in which an abrasive is thrown by a gas stream from a nozzle onto a fabric guided over a deflecting roller, is characterized in that a deflecting roller projects into a radiation chamber, the gap between the deflecting roller and the radiation chamber is sealed by special sealing strips.
  • the inside of the radiation chamber is provided with a wear protection lining.
  • an acceleration channel protrudes into the radiation chamber. The distance between the exit edge of the acceleration channel and the deflection roller is adjustable.
  • the acceleration channel is constructed as a flat channel with a rectangular cross section, in which solid particles are accelerated by a gas stream, for example an air stream.
  • the channel exit edge is parallel to the cylinder axis of the deflection roller.
  • the opening of the radiation chamber, through which the acceleration channel protrudes, is covered with a cover that both close to the radiation chamber and the acceleration channel.
  • the bottom of the radiation chamber is funnel-shaped. This removes the gas that carries blasting media and dust.
  • roller heating By limiting the roller heating to selected areas of the roller surface, pattern-like areas with more intense roughening and matting effects and / or pattern-like areas in which reactions between the polymer and substances that are wholly or partly part of the solid particles or the gas stream take place are achieved in the fabric .
  • Reactions between the polymeric sheet and substances that are wholly or partially part of the solid particles or the gas stream can also be triggered by reactive species being formed by high-energy radiation, preferably by electron beams, in the sheet structure before being exposed to solid particles or in selected areas will.
  • Roughing and matting effects arranged in a pattern can be achieved by means of a perforated stencil which is arranged in the application area in front of the fabric.
  • This template can be arranged stationary or it can move synchronously with the fabric or relative to the fabric.
  • the object is also achieved in that a web-shaped flexible sheet is moved over a curved hard surface of a deflecting roller and is brought into contact with a stationary air vortex on this surface. Solid particles are placed in this stationary air vortex, which act on the fabric during each revolution.
  • a suction pipe In the center of the vortex there is a suction pipe, the cross section of which is dimensioned such that the solid particles, when they have reached the wear limit with regard to their size, are conveyed out of the vortex with the exhaust air and are removed from the air via known separating devices.
  • a fresh air and a solid particle supply duct as well as a suction tube which generates a vacuum in the housing by suction are arranged in a housing which has an opening for the solid material to act upon the web.
  • the suction pipe is attached to the central axis of the housing and has a suction slot.
  • the solid particle supply duct opens into the fresh air supply duct.
  • an undyed fabric made of polyester silk 1 with a mass per unit area of 60 g / m 2 and a width of 1 m is passed over a rotating drum 2 and corundum particles of 0.5 mm particle size are applied in area A.
  • the corundum particles are fed via a 1 m wide inflow container 3 and accelerated by an air stream emerging from the 1 m wide nozzle 4.
  • the air is at room temperature.
  • the treatment makes the fabric matt and rough to the touch on the side exposed to corundum particles. It also becomes softer and denser and the position of the threads relative to one another becomes more even.
  • a polyester film 1 m wide and 40 ⁇ m thick is first treated on one side in the same way as in Example 1. However, it is loaded with micro glass balls of 0.1 mm in diameter. The other side of the film is then treated in the same way. This treatment makes the film matt and rough on both sides, and the transparency is reduced.
  • a dyed and coated polyamide silk fabric on one side is first exposed to quartz sand particles of 1.5 mm in size A on the coated side as in Example 1. Subsequently, quartz sand of 0.7 mm particle size is applied to it on the uncoated side in area B (FIG. 1). This treatment on both sides makes the fabric softer, rough and matt. The water permeability through the coating is retained.
  • An undyed knitted polyester fabric is treated analogously to Example 1. However, it is loaded with quartz sand particles of 0.5 mm in size, which were previously treated in a dispersion of disperse dye and then dried. The particles are accelerated with hot air at 190 ° C. The effects mentioned in Example 1 are achieved and the knitted fabric is also dyed.
  • An undyed polyester fabric is treated analogously to Example 1. However, a mixture of quartz sand particles and disperse dye granules (mixing ratio 1:10) is applied. The particles are accelerated with air at room temperature. The dye is fixed on the fabric by the known thermal aftertreatment. The treatment leads to the effects mentioned in Example 4.
  • a polypropylene thread 5 (FIG. 3) is passed through the chamber 6 filled with quartz sand particles of 0.7 mm particle size.
  • the sand particles are heated to 125 ° C. by the jacket heater 7. This treatment gives the thread a fine-grained surface, which makes it matt and rough.
  • FIG. 4 shows a section through the device and FIG. 5 shows a side view of the device.
  • the web 8 is moved with tension by known means over the deflection roller 9.
  • the deflecting roller 9 protrudes on the side where the material web 8 rests into the radiation chamber 10, the bottom 11 of which is funnel-shaped for the removal of air, blasting medium and dust.
  • the radiation channel 12 projects through an opening into the radiation chamber 10.
  • This opening is closed with a divided cover 13.
  • the acceleration channel 12 is easily exchangeable.
  • acceleration channels of different widths can be installed very easily.
  • the blasting medium for example corundum particles, which is caught by the air flow, is thrown through the acceleration channel 12 and the acceleration chamber 10 onto the material web 8. After stepping onto the web 8, the blasting agent falls onto the floor 11 of the radiation chamber 10 and is removed from there by known methods.
  • a flexible fabric web 14 is moved over a deflection roller 15 according to FIG.
  • zone A it is in direct contact with a stationary air vortex 16 which is guided through a housing 17.
  • the suction tube 18 In the center of the vortex 16 is the suction tube 18 with the slot 19, which is dimensioned so that the vortex has the same pressure and thus the same speed over the entire width.
  • the suction creates a negative pressure in the housing 7, whereby fresh air that drives the vortex flows in through the channel 20.
  • solid particles are introduced into the air stream, which circulate with the vortex inside the housing 17 and impinge on the web 14 in each zone A zone.
  • the worn particles are guided with the air flow through the slot 19 into the suction pipe 18 and conducted out of the device with the exhaust air.
  • the device In operation of the device, after the required amount of particles has been added to the vortex, only the wearing amount of particles has to be added through the channel 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
EP88107528A 1987-05-13 1988-05-10 Procédé et installation pour rendre mates et laineuses des matières polymères Expired - Lifetime EP0291026B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DD302723 1987-05-13
DD30272387A DD264111A3 (de) 1987-05-13 1987-05-13 Vorrichtung zur herstellung matter und rauher flaechen- oder bandfoermiger polymerer erzeugnisse
DD302724 1987-05-13
DD87302724A DD264112A3 (de) 1987-05-13 1987-05-13 Vorrichtung zur herstellung matter und rauher flaechen- oder bandfoermiger polymerer erzeugnisse

Publications (3)

Publication Number Publication Date
EP0291026A2 true EP0291026A2 (fr) 1988-11-17
EP0291026A3 EP0291026A3 (en) 1989-05-24
EP0291026B1 EP0291026B1 (fr) 1992-04-22

Family

ID=25748138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107528A Expired - Lifetime EP0291026B1 (fr) 1987-05-13 1988-05-10 Procédé et installation pour rendre mates et laineuses des matières polymères

Country Status (4)

Country Link
US (1) US4960430A (fr)
EP (1) EP0291026B1 (fr)
DE (1) DE3870307D1 (fr)
HU (1) HUT51539A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0377417A1 (fr) * 1988-12-29 1990-07-11 CINPAS DI PASTUGLIA FRANCA & C.-S.N.C. Procédé de décoloration d'étoffes denim par projection d'eau chaude
US4960430A (en) * 1987-05-13 1990-10-02 Veb Greika Greiz Weberei Und Veredlung Method for manufacturing of mat and rough, laminar, ribbon-shaped or fibrous polymeric products with a stream of particles
EP0434575A1 (fr) * 1989-12-22 1991-06-26 ETABLISSEMENTS LES FILS D'AUGUSTE CHOMARAT & CIE. Société Anonyme Procédé pour la réalisation d'une armature textile de renforcement pour matériaux composites à base de résines et nouvéau type d'armature
US5404625A (en) * 1990-10-12 1995-04-11 Milliken Research Corporation Method and apparatus for modifying fibers and fabric by impaction with particles
DE19955660C1 (de) * 1999-11-19 2001-03-22 Messer Griesheim Gmbh Verfahren und Vorrichtung zur Behandlung der Oberfläche von Textilien
WO2009030317A1 (fr) * 2007-09-03 2009-03-12 Carl Freudenberg Kg Procédé de fabrication d'un produit plat composé de fils, fibres ou filaments au moins partiellement divisés et dispositif de fabrication de ces produits plats

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330790A (en) * 1992-02-07 1994-07-19 Calkins Noel C Impact implantation of particulate material into polymer surfaces
EP0597216A1 (fr) * 1992-11-04 1994-05-18 WILLI HAHN GmbH & CO. KG Tournevis
US6602544B2 (en) * 2001-08-29 2003-08-05 Veronica Piselli Mineral compound composite textile material and method of manufacturing
US8980148B2 (en) 2012-04-09 2015-03-17 Nanotech Industries, Inc. Method of manufacturing a track membrane

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH349947A (de) * 1957-03-07 1960-11-15 Britisch Rayon Research Ass Vorrichtung zum Behandeln von fadenförmigem oder bahnförmigem Gut
US3032889A (en) * 1958-07-17 1962-05-08 Shri Ram Inst For Ind Res Guide roller mounting and fluid injection system for fluidized beds for textile treatment
CH448000A (de) * 1960-02-26 1967-12-15 Cotton Silk & Man Made Fibres Apparat zur Behandlung von bahnförmigem Material
US3472430A (en) * 1966-06-06 1969-10-14 Nat Distillers Chem Corp Method and apparatus for producing a dust cloud
US3503778A (en) * 1967-10-30 1970-03-31 Nat Distillers Chem Corp Method of coating a substrate with a plastic material
DE2732097A1 (de) * 1976-07-15 1978-01-19 Rothmans Of Pall Mall Verfahren und vorrichtung zum aufbringen fein verteilter teilchen auf ein papierband
GB2047126A (en) * 1979-03-24 1980-11-26 Winner Texplast Ag Coating webs with powder
WO1983004195A1 (fr) * 1982-05-24 1983-12-08 The Polymer Corporation Poudres epoxy de revetement avec finis plisses
EP0168196A1 (fr) * 1984-06-29 1986-01-15 The Procter & Gamble Company Procédé pour la distribution uniforme de particules discrètes sur un tissu poreux mouvant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH374358A (de) * 1961-03-23 1963-09-30 Sandoz Ag Verfahren zum Färben von Textilmaterialien mit Hilfe einer elektrostatischen Potentialdifferenz
NL7414822A (nl) * 1973-11-16 1975-05-21 Zimmer Peter Werkwijze en inrichting voor het bedrukken van vezelmaterialen.
CH579663B5 (fr) * 1974-04-08 1976-09-15 Ciba Geigy Ag
GB1567036A (en) * 1976-07-15 1980-05-08 Rothmans Of Pall Mall Method and apparatus for the application of finely divided particles to an elongate paper band
US4717391A (en) * 1986-11-28 1988-01-05 Burlington Industries, Inc. Method for spraying of dyes from high-boiling solvent dispersions onto open width fabric with heat setting
US4960430A (en) * 1987-05-13 1990-10-02 Veb Greika Greiz Weberei Und Veredlung Method for manufacturing of mat and rough, laminar, ribbon-shaped or fibrous polymeric products with a stream of particles

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH349947A (de) * 1957-03-07 1960-11-15 Britisch Rayon Research Ass Vorrichtung zum Behandeln von fadenförmigem oder bahnförmigem Gut
US3032889A (en) * 1958-07-17 1962-05-08 Shri Ram Inst For Ind Res Guide roller mounting and fluid injection system for fluidized beds for textile treatment
CH448000A (de) * 1960-02-26 1967-12-15 Cotton Silk & Man Made Fibres Apparat zur Behandlung von bahnförmigem Material
US3472430A (en) * 1966-06-06 1969-10-14 Nat Distillers Chem Corp Method and apparatus for producing a dust cloud
US3503778A (en) * 1967-10-30 1970-03-31 Nat Distillers Chem Corp Method of coating a substrate with a plastic material
DE2732097A1 (de) * 1976-07-15 1978-01-19 Rothmans Of Pall Mall Verfahren und vorrichtung zum aufbringen fein verteilter teilchen auf ein papierband
GB2047126A (en) * 1979-03-24 1980-11-26 Winner Texplast Ag Coating webs with powder
WO1983004195A1 (fr) * 1982-05-24 1983-12-08 The Polymer Corporation Poudres epoxy de revetement avec finis plisses
EP0168196A1 (fr) * 1984-06-29 1986-01-15 The Procter & Gamble Company Procédé pour la distribution uniforme de particules discrètes sur un tissu poreux mouvant

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960430A (en) * 1987-05-13 1990-10-02 Veb Greika Greiz Weberei Und Veredlung Method for manufacturing of mat and rough, laminar, ribbon-shaped or fibrous polymeric products with a stream of particles
EP0377417A1 (fr) * 1988-12-29 1990-07-11 CINPAS DI PASTUGLIA FRANCA & C.-S.N.C. Procédé de décoloration d'étoffes denim par projection d'eau chaude
EP0434575A1 (fr) * 1989-12-22 1991-06-26 ETABLISSEMENTS LES FILS D'AUGUSTE CHOMARAT & CIE. Société Anonyme Procédé pour la réalisation d'une armature textile de renforcement pour matériaux composites à base de résines et nouvéau type d'armature
FR2656343A1 (fr) * 1989-12-22 1991-06-28 Chomarat & Cie Procede pour la realisation d'une armature textile de renforcement pour materiaux composites a base de resines et nouveau type d'armature.
US5126191A (en) * 1989-12-22 1992-06-30 Establissements Les D'auguste Chomarat Et Cie Process for the production of a textile reinforcing web for composite materials based on resins and new type of web
US5404625A (en) * 1990-10-12 1995-04-11 Milliken Research Corporation Method and apparatus for modifying fibers and fabric by impaction with particles
DE19955660C1 (de) * 1999-11-19 2001-03-22 Messer Griesheim Gmbh Verfahren und Vorrichtung zur Behandlung der Oberfläche von Textilien
WO2001036733A2 (fr) * 1999-11-19 2001-05-25 Messer Griesheim Gmbh Procede et dispositif pour traiter la surface de textiles
WO2001036733A3 (fr) * 1999-11-19 2001-12-27 Messer Griesheim Gmbh Procede et dispositif pour traiter la surface de textiles
WO2009030317A1 (fr) * 2007-09-03 2009-03-12 Carl Freudenberg Kg Procédé de fabrication d'un produit plat composé de fils, fibres ou filaments au moins partiellement divisés et dispositif de fabrication de ces produits plats

Also Published As

Publication number Publication date
EP0291026B1 (fr) 1992-04-22
JPS642866A (en) 1989-01-06
JPH0579468B2 (fr) 1993-11-02
DE3870307D1 (de) 1992-05-27
EP0291026A3 (en) 1989-05-24
US4960430A (en) 1990-10-02
HUT51539A (en) 1990-05-28

Similar Documents

Publication Publication Date Title
EP0291026B1 (fr) Procédé et installation pour rendre mates et laineuses des matières polymères
US3979538A (en) Flocked web and method of producing same
EP0414125B1 (fr) Dispositif pour le séchage d'une couche liquide appliquée sur un substrat en mouvement
EP0245320A1 (fr) Fibres, filaments, fils et/ou formations de surface les contenant et/ou structure formee de debris et procede pour leur production.
EP0452867B1 (fr) Procédé et dispositif de traitement thermique d'une bande continue munie d'une composition fluide ou pâteuse
DE1760662B2 (de) Verfahren zur kontinuierlichen Herstellung von Vliesen aus polyamidhaltigen Fäden
DE2206698A1 (de) Gegen Abrieb bestandiger Gegenstand und Verfahren zu seiner Herstellung
DE1913932A1 (de) Verfahren und Vorrichtung zur kontinuierlichen Waermebehandlung von poroesen schwereren Warenbahnen
DE3014656A1 (de) Verfahren und verstaerkung von oberstoffen fuer kleidungsstuecke und vorrichtung hierfuer
KR840001027B1 (ko) 기계적 표면 가공방법
DE3641437A1 (de) Feinteilchen-blasvorrichtung
EP0625035A1 (fr) Procede de fabrication d'un support souple et mince recouvert de couches poreuses d'adhesif.
EP0351482B1 (fr) Procédé et installation de rétrécissement et de lissage
DE3540411C2 (fr)
DE2542575A1 (de) Verfahren und vorrichtung zur aushaertung von ueberzuegen auf empfindlichen unterlagen durch elektronenbestrahlung
DE1410917A1 (de) Verfahren und Ofen zum Reinigen von Glasfasergeweben durch Erhitzung
DE1571116A1 (de) Verfahren und Vorrichtung zur Herstellung streifenfrei beschichteter Bahnen
WO2009134394A9 (fr) Tissu floqué amélioré grâce à des paillettes
DD264112A3 (de) Vorrichtung zur herstellung matter und rauher flaechen- oder bandfoermiger polymerer erzeugnisse
DE2241959A1 (de) Verfahren und vorrichtung zur kontinuierlichen gleichmaessigen verteilung eines feinverteilten stoffes auf einer unterlage
DD256670A1 (de) Verfahren zur herstellung matter und rauher flaechen-, band- oder fadenfoermiger polymerer erzeugnisse
DE2438705C2 (de) Verfahren zum kontinuierlichen, trockenen Übertragen von organischen Verbindungen auf einseitig druckempfindliche Textilbahnen
DE2600167B2 (de) Verwendung einer vorbehandelten Papierbahn zur Herstellung einer metallisierten Papierbahn
DD133975B1 (de) Verfahren und anlage zum praeparieren,insbesondere zum schlichten von faeden
DE3137794A1 (de) "verfahren und vorrichtung zum kontinuierlichen auftragen einer kleinstmenge an fluessigkeit"

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE FR GB IT LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19890719

17Q First examination report despatched

Effective date: 19901217

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19920422

Ref country code: BE

Effective date: 19920422

Ref country code: FR

Effective date: 19920422

Ref country code: GB

Effective date: 19920422

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920509

Year of fee payment: 5

REF Corresponds to:

Ref document number: 3870307

Country of ref document: DE

Date of ref document: 19920527

EN Fr: translation not filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19921002

Year of fee payment: 5

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: GAO GESELLSCHAFT FUER AUTOMATION UND ORGANISATION

Effective date: 19930122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930531

Ref country code: CH

Effective date: 19930531

PLBG Opposition deemed not to have been filed

Free format text: ORIGINAL CODE: 0009274

26D Opposition deemed not to have been filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940802