EP0022153B1 - Procédé de fabrication d'une feuille décorative à effet fini - Google Patents

Procédé de fabrication d'une feuille décorative à effet fini Download PDF

Info

Publication number
EP0022153B1
EP0022153B1 EP19800102269 EP80102269A EP0022153B1 EP 0022153 B1 EP0022153 B1 EP 0022153B1 EP 19800102269 EP19800102269 EP 19800102269 EP 80102269 A EP80102269 A EP 80102269A EP 0022153 B1 EP0022153 B1 EP 0022153B1
Authority
EP
European Patent Office
Prior art keywords
carrier webs
printed
resin
paper
lacquer
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.)
Expired
Application number
EP19800102269
Other languages
German (de)
English (en)
Other versions
EP0022153A1 (fr
Inventor
Jürgen Dr. Fock
Helmut Bühler
Georg Rohde
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.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt AG
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 TH Goldschmidt AG filed Critical TH Goldschmidt AG
Publication of EP0022153A1 publication Critical patent/EP0022153A1/fr
Application granted granted Critical
Publication of EP0022153B1 publication Critical patent/EP0022153B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0054—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by thermal means, e.g. infrared radiation, heat
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof

Definitions

  • the invention relates to a process for the production of a decorative finished effect film based on paper backing sheets which contain condensation resins and, if appropriate, additionally polymerization resins in a uniform distribution in the paper in an amount sufficient to achieve the splitting strength, and coating or printing these backing sheets with an optionally curable acrylate resin and then heating the coated carrier webs until a drying value of ⁇ 6% by weight is reached.
  • Ready-made effect films are synthetic resin coatings that have been cured without pressure during manufacture and are glued by the processor to the surface of wood-based panels in veneer presses with a pressure of 0.3 to 1.5 N / cm 2 . It is possible to overpaint the glued finished effect films.
  • Ready-made effect films usually have a paper backing which is interspersed with a condensation resin to achieve splitting resistance.
  • Urea or melamine formaldehyde resins are used as condensation resins. In the form of their solution, these can be added to the paper during its manufacture, i.e. be added to the pulp in the paper machine. Usually, however, the finished paper webs are soaked with the aqueous solutions of the condensation resins.
  • Polymerization resins in particular acrylate resins, can optionally be added to the condensation resins.
  • acrylic resins can be thermosetting or thermoplastic. If curable acrylate resins are used, they contain reactive groups, e.g. Glycidyl ester groups, N-methylol methacrylamide groups or carboxyl groups.
  • the acrylate polymers can react by reacting these groups with one another or with the reactive groups of the urea or melamine formaldehyde resins. Those acrylic resins which have glass transition temperatures of 10 ° C. are preferably used.
  • condensation resins and, if appropriate, carrier webs containing polymerization resins are then coated with dispersions or solutions of acrylate resins. It is preferable to use curable acrylic resins with glass transition temperatures of> __ 20 ° C, since these result in mechanically and thermally more resilient surface layers.
  • the carrier web which is permeated with condensation resin and optionally polymerization resin and coated with acrylate resin, is then dried in a drying channel while circulating air until its content of volatile constituents, the so-called Darr value, has dropped to ⁇ 6% by weight. This ensures that the amounts of liquid introduced by the impregnation and coating have evaporated and the condensation or polymerization of the curable resins has been brought to the desired value.
  • the impregnation and coating of carrier webs is usually carried out in devices in which the carrier webs are drawn through the solution or dispersion of the impregnating or coating resin in a soaking tub or float on the surface of such a solution while absorbing the resin solution. Thereafter, the resin application is leveled by rollers or doctor devices and, if necessary, an excess is stripped off.
  • the coating can be applied in one or more layers. If relatively thin layers are sufficient, the acrylic resins can also be printed on the carrier webs.
  • DE-AS 27 27 312 describes a process for the production of gap-resistant coating webs on the decor side that have hardened synthetic resin on the basis of thin papers, with the solution or dispersion of a curable impregnating resin first being found on the side of the thin paper intended for decor printing Amounts are applied so that the resin does not penetrate to the back of the paper, then, after the impregnated thin paper has dried, is decoratively printed and optionally coated with the solution or dispersion of a curable resin after application of an intermediate layer, and then the film obtained dries and cures.
  • This method is characterized in that on a thin paper with a basis weight; a; 60 g / m 2 of the impregnating resin in an amount of at least 8% (based on paper weight), but not so much that the resin penetrates through, is applied by means of the printing unit of a printing press.
  • This method was used a printing press for two reasons: On the one hand, only a relatively small amount of impregnation resin had to be applied to the thin paper, on the other hand, the basis weight of the paper was at most 60 g / m 2 , so that despite the resin applied and contained in the paper, the flexibility of the paper in such a degree was ensured that printing in the printing unit of a printing press appeared possible.
  • the present invention is based on the object of also providing those finished effect films which are impregnated and coated in the customary manner with a surface layer in order to avoid the known disadvantages of such finished effect films.
  • a particular disadvantage of the conventional ready-made effect films is that they often tend to stick together when the warm wood-based panels glued with ready-made effect films are removed from the heating presses and stored in stacks. If, on the other hand, sufficient freedom from blockage is guaranteed, problems often arise in the subsequent painting of the surfaces due to insufficient adhesion of the top coat. In addition, the surfaces are mechanically vulnerable. The application of a topcoat should both remove the tendency to stick and at the same time form a hard, mechanically stressable surface.
  • the topcoat is to be applied to finished effect films in which the hardened condensation and, if appropriate, polymerization resin is contained uniformly over the entire cross section of the carrier webs and in such an amount that the paper is resistant to splitting .
  • the impregnating resin is only applied in such an amount that it does not penetrate to the rear, the invention is intended. Finished effect films are treated in which the impregnating resin has penetrated to the back and in which there is no limit to the paper weight.
  • the object of the invention is achieved in that the carrier webs obtained in this way by means of metered roller application with, based on solid resin, 2 to 10 g / m 2 of a solution of a topcoat made of nitrocellulose lacquer or. acid-curing, nitrocellulose-containing varnish printed.
  • the carrier webs are preferably printed with 2 to 6 g / m 2 of a solution of the topcoat.
  • Printing with metered roller application is understood to mean a method in which a roller dips into a tub with the solution of the top coat, is moistened with the solution and is transferred to a second roller, which acts as a printing roller. The paper which is pressed against it by a third roller is guided over this second roller.
  • carrier webs of any paper weight are used in which the impregnating resin is contained uniformly, i.e. up to the back of the carrier web. Even thin papers with a high resin content can be printed with the desired amount of top coat.
  • the brittleness of an impregnated and coated film web can be reduced by preheating the film web to a temperature above room temperature of about 40 to 50 ° C. before printing.
  • a partially or completely etherified aminoplast resin is used in particular as the acid-curing lacquer. If mixtures of nitrocellulose lacquer and acid-curing lacquer are used, mixtures in a weight ratio of 20: 1 to 1: 2 have proven particularly useful.
  • Suitable solvents for the topcoats are the solvents known for such lacquers, e.g. aromatic hydrocarbons, aliphatic esters, ketones, lower alcohols and mixtures thereof, in particular ethyl or butyl acetate, acetone, methyl ethyl ketone, ethanol or mixtures of these solvents.
  • lacquers e.g. aromatic hydrocarbons, aliphatic esters, ketones, lower alcohols and mixtures thereof, in particular ethyl or butyl acetate, acetone, methyl ethyl ketone, ethanol or mixtures of these solvents.
  • top coat on the carrier webs using an anilox roller.
  • a gravure printing device is used.
  • the top coat in the depressions of the printing roller is applied to the material to be printed, i.e. the finished effect film.
  • the basis weight is 120 g / m 2 ; the volatile content is 9.5%.
  • the film web thus obtained is coated on the top side with the aqueous 50% dispersion of a crosslinkable acrylate copolymer with a minimum film-forming temperature of 23 ° C. using a wire knife. After drying, a film with a basis weight of 144 g / m 2 is obtained; the volatile content is 2.5%.
  • the film is glued to a particle board at a temperature of 130 ° C. and a pressure of 0.5 N / cm 2 for 30 seconds.
  • the surface coating layer proves to be resistant to splitting and adhesion and shows an even, deep shine. Chipboard coated with this film, stacked for storage, does not block even at temperatures of 80 ° C.
  • the surface is scratch-resistant and, in the event of damage due to scratches, can be overpainted with paints that are usually used for this purpose with satisfactory adhesion.
  • the properties of the surface meet the requirements of DIN 68 861 (requirements for furniture surfaces) according to stress group C.
  • a decorative, smooth, filled paper with a basis weight of 106 g / m 2 , a density of 0.90 g / cm 3 , an air passage of 450 ml / min, an ash content of 21% and a resin absorption of 87% impregnated with the mixture of 85 parts by weight of the 50% solution of a urea-formaldehyde resin in water with 0.2 parts by weight of ammonium chloride and 15 parts by weight of a 50% aqueous dispersion of a self-crosslinking, finely divided acrylate copolymer with a minimum film-forming temperature of 0 ° C.
  • the weight per unit area is 155 g / m 2 ; the volatile content is 10.2%.
  • the film web thus obtained is coated on the upper side with the aqueous, 50% dispersion of a crosslinkable acrylate copolymer with a minimum film-forming temperature of 27 ° C. using a wire knife. After drying, a film with a basis weight of 176 g / m 2 is obtained; the volatile content is 2.4%.
  • an anilox roller with 50 lines / cm is used in a printing unit to apply a coating using an 18% strength solution of nitrocellulose in a mixture of 1 part by weight of acetone and 3 parts by weight of ethyl acetate with a viscosity of 20 seconds in a quantity of 4 g / m 2 (based on solids) applied.
  • the process product obtained in this way is dried at 170 ° C. for 20 seconds.
  • the film now has a total weight of 180 g / m 2 ; the volatile content is 1.8%.
  • the film is processed as in Example 1, the application properties of the film surface are the same except for improved adhesion compared to the lacquers used for the aftertreatment.
  • the properties of the surface meet the requirements of DIN 68 861 (requirements for furniture surfaces) according to stress group C.
  • a smooth paper provided with a decorative print which was made gap-proof in the paper machine by adding aminoplast resin and acrylate resin to the paper pulp, with a basis weight of 59 g / m 2 , a density of 0.93 g / cm 3 , an air passage of 120 ml / min, an ash content of 12% and a resin absorption of 19%, is printed twice with intermediate drying with a curable acrylate dispersion with a glass transition temperature of 27 ° C, after drying a basis weight of 70.5 g / m 2 results; the volatile content is 5%.
  • an anilox roller with 50 lines / cm is used in a printing unit to apply a coating using an 18% strength solution of nitrocellulose in a mixture of 1 part by weight of acetone and 3 parts by weight of ethyl acetate with a viscosity of 20 seconds in a quantity of 4 g / m 2 (based on solids) applied.
  • the process product obtained in this way is dried at 160 ° C. for 25 seconds.
  • the film now has a total weight of 73.8 g / m2; the volatile content is 4.0%.
  • the film is glued to a chipboard at a temperature of 130 ° C. and a pressure of 1.5 N / cm 2 against a structured phenolic resin laminate.
  • the surface coating layer proves to be resistant to splitting and adhesion and shows an even, deep shine. Chipboard coated with this film and stacked for storage does not block even at temperatures of 80 ° C.
  • the surface is scratch-resistant and, in the event of damage from scratches, can be overpainted with paints that are usually used for this purpose with good adhesion.
  • the properties of the surface meet the requirements of DIN 68 861 (requirements for furniture surfaces) according to stress group C.

Landscapes

  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)

Claims (5)

1. Procédé de fabrication d'une feuille décorative à effet de finition à base de bandes supports formées de papier qui contiennent dans le papier des résines de condensation et éventuellement en outre des résines de polymérisation à l'état uniformément distribué, en quantité suffisante pour assurer la résistance au fendage, bandes sur lesquelles on applique sous forme de revêtement ou d'impression une résine d'acrylate éventuellement durcissable, après quoi on chauffe les bandes supports revêtues jusqu'à obtenir une valeur Darr ne dépassant pas 6 % en poids, caractérisé par le fait que l'on imprime les bandes supports ainsi obtenues, par application dosée au moyen de cylindres, avec 2 à 10 g/m2 (calculés en résine solide) d'une solution d'une peinture de finition formée de peinture de nitrocellulose ou de peinture contenant de la nitrocellulose et durcissant à l'acide.
2. Procédé selon la revendication 1, caractérisé par le fait que l'on imprime les bandes supports avec 3 à 6 g d'une solution d'une peinture de finition.
3. Procédé selon l'une des revendications 1 et 2, caractérisé par le fait que l'on imprime les bandes supports avec la peinture de finition au moyen d'un rouleau anilox.
4. Procédé selon une ou plusieurs des revendications 1 à 3 ci-dessus, caractérisé par le fait que l'on imprime les bandes supports avec la peinture de finition au moyen d'un appareil d'héliogravure.
5. Procédé selon une ou plusieurs des revendications précédentes, caractérisé par le fait que l'on imprime les bandes supports avec la solution d'une peinture de finition ayant une viscosité de 10 à 40 secondes, mesurée selon DIN 53 211 à 20 °C avec une buse de 4 mm.
EP19800102269 1979-07-10 1980-04-26 Procédé de fabrication d'une feuille décorative à effet fini Expired EP0022153B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792927746 DE2927746C2 (de) 1979-07-10 1979-07-10 Verfahren zur Herstellung eines dekorativen Fertigeffektfilmes
DE2927746 1979-07-10

Publications (2)

Publication Number Publication Date
EP0022153A1 EP0022153A1 (fr) 1981-01-14
EP0022153B1 true EP0022153B1 (fr) 1982-10-13

Family

ID=6075297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800102269 Expired EP0022153B1 (fr) 1979-07-10 1980-04-26 Procédé de fabrication d'une feuille décorative à effet fini

Country Status (4)

Country Link
EP (1) EP0022153B1 (fr)
JP (1) JPS5615499A (fr)
DE (1) DE2927746C2 (fr)
ES (1) ES492509A0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734941A1 (de) * 1997-06-12 1998-12-24 Wkp Wuerttembergische Kunststo Verfahren zum Herstellen von Papier

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3278973D1 (en) * 1982-04-24 1988-10-06 Robert Linnemann Gmbh & Co Process and apparatus for the production of paper webs which may be cut into ribbons for use as veneers for wooden panel edges
DE3313825C1 (de) * 1983-04-16 1991-11-21 Vits-Maschinenbau Gmbh, 4018 Langenfeld Verfahren und Vorrichtung zum Herstellen einer Folie,insbesondere fuer die Beschichtung von Hartfaser-,Span- oder Holzplatten
US4579610A (en) * 1984-12-13 1986-04-01 National Gypsum Company Method of making predecorated gypsum board
US4725477A (en) * 1984-12-13 1988-02-16 National Gypsum Company Predecorated gypsum board
WO1998056990A1 (fr) * 1997-06-12 1998-12-17 WKP Württembergische Kunststoffplatten-Werke GmbH & Co. KG Procede de production de papier
MC200022A1 (fr) * 1999-09-21 2001-03-28 Heller Ernst Systeme eco-decor traitement en phases muliples des papiers destines a la stratification des supports tels que les panneaux de particules les panneaux en fibres de bois les contreplaques ou autres
NL1036705C2 (nl) 2009-03-13 2010-09-14 Trespa Int Bv Werkwijze ter vervaardiging van een met hars geïmpregneerd decorpapier alsmede een decorpaneel.
NL2007494C2 (nl) 2011-09-28 2013-04-02 Trespa Int Bv Werkwijze ter vervaardiging van een decoratieve film alsmede een decorpaneel.
NL2011719C2 (en) 2013-11-01 2015-05-04 Trespa Int Bv A decorative panel.
NL2014060B1 (en) 2014-12-24 2016-09-30 Trespa Int Bv A method for producing a printed decorative paper.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE560546C (de) * 1928-03-25 1932-10-13 I G Farbenindustrie Akt Ges Verfahren zur Herstellung von widerstandsfaehigen Drucken auf Metall, Holz, Papier, Textilien, Leder, Kunstharzen oder anderen Kunststoffen organischer Natur, Steinen oder Kunststeinen
DE1256056B (de) * 1961-02-28 1967-12-07 Herberts & Co Gmbh Dr Kurt Verfahren zur Herstellung einer Grundierfolie fuer Polyester-Lackierung
DE2401440C3 (de) * 1974-01-12 1980-02-14 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung einer aufleimbaren Beschichtungsfolie
DE2737312A1 (de) * 1976-08-23 1978-03-02 Seib Ltd Martin Fluessig-entwickler-station
DE2727312C3 (de) * 1977-06-16 1979-11-22 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von spaltfesten, dekorseitig ausgehärtetes Kunstharz aufweisende! Vergütungsbahnen auf der Basis von Papieren mit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734941A1 (de) * 1997-06-12 1998-12-24 Wkp Wuerttembergische Kunststo Verfahren zum Herstellen von Papier

Also Published As

Publication number Publication date
DE2927746B1 (de) 1980-07-24
EP0022153A1 (fr) 1981-01-14
JPS5615499A (en) 1981-02-14
ES8102732A1 (es) 1981-02-16
ES492509A0 (es) 1981-02-16
DE2927746C2 (de) 1981-05-27

Similar Documents

Publication Publication Date Title
EP0022153B1 (fr) Procédé de fabrication d'une feuille décorative à effet fini
DE102004034790A1 (de) Blatt- oder bahnförmige dekorative Beschichtungsfolie sowie Verfahren zum Herstellen einer solchen
CH651498A5 (de) Mehrschichtige eine gehaertete lackoberflaeche aufweisende platte, verfahren zu deren herstellung und ihre verwendung.
DE1278388B (de) Verfahren zur Herstellung harzueberzogener Dekorpapiere
EP0123252B1 (fr) Procédé de fabrication de feuilles colorées décoratives comprenant de la résine mélamine avec une structure superficielle à trois dimensions
DE2727312C3 (de) Verfahren zur Herstellung von spaltfesten, dekorseitig ausgehärtetes Kunstharz aufweisende! Vergütungsbahnen auf der Basis von Papieren mit
WO2015197164A1 (fr) Procédé de fabrication de stratifiés
EP2045393B1 (fr) Procédé de fabrication d'une feuille résistant à l'usure et feuille résistant à l'usure
EP0870872B1 (fr) Support de papier d'impression imprégné unilatéralement
EP1319524B1 (fr) Feuilles décoratives à haute dureté de surface et à résistance améliorée à la rayure et à l'abrasion, ainsi que leur procédé de fabrication
DE10035924B4 (de) Imprägnat und Verfahren zur Herstellung und Verwendung des Imprägnats
EP3351682A1 (fr) Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche
DE10307966C5 (de) Vorimprägnat und Verfahren zu seiner Herstellung
DE2658784C3 (de) Verwendung eines thermoplastischen Faservlieses
EP0695629A2 (fr) Matériau composite multicouche, procédé pour sa fabrication et son utilisation
DE2551479A1 (de) Verfahren zur herstellung einer impraegnierten folie mit oberflaechennachbehandlung
DE1794073A1 (de) Verbundplatte enthaltend eine Metallfolie und Verfahren zu ihrer Herstellung
DE2362397C3 (de) Mit härtbaren Kunstharzen imprägnierte und beschichtete Trägerstoffbahn für die Oberflächenveredelung von Holzwerkstoffen und Verfahren zu ihrer Herstellung
DE2232847A1 (de) Verfahren zur herstellung von mit aminoplastharzen getraenkten und dekorseitig mit lackharz beschichteten traegerbahnen
DE2234020C2 (fr)
DE102022115834A1 (de) Wässrige Decklackzusammensetzung für Dekorfinishfolien
DE1007989B (de) Verfahren zur Verguetung der Oberflaechen von Sperrholzplatten und aehnlichen poroesen Unterlagen wie Hartfaserplatten, Spanplatten, Hartpappe od. dgl. bei deren Herstellung
DE2334614A1 (de) Verfahren zum behandeln einer verguetungslage und nach diesem verfahren behandelte verguetungslage
DD293547A5 (de) Dekorativer papierverbund und verfahren zu seiner herstellung
DD205708A1 (de) Verfahren zur herstellung von rollfaehigen dekorfolien mit finishcharakter

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

Designated state(s): BE FR GB IT SE

17P Request for examination filed

Effective date: 19801216

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

Ref country code: FR

Payment date: 19900415

Year of fee payment: 11

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

Ref country code: GB

Payment date: 19900417

Year of fee payment: 11

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

Ref country code: SE

Payment date: 19900418

Year of fee payment: 11

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900502

Year of fee payment: 11

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

Ref country code: GB

Effective date: 19910426

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

Ref country code: SE

Effective date: 19910427

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

Ref country code: BE

Effective date: 19910430

BERE Be: lapsed

Owner name: A.B. CASCO

Effective date: 19910430

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

Ref country code: FR

Effective date: 19911230

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 80102269.0

Effective date: 19911108

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT