EP0225547A1 - Toners à un seul composant colorés et procédé de leur préparation - Google Patents

Toners à un seul composant colorés et procédé de leur préparation Download PDF

Info

Publication number
EP0225547A1
EP0225547A1 EP86116459A EP86116459A EP0225547A1 EP 0225547 A1 EP0225547 A1 EP 0225547A1 EP 86116459 A EP86116459 A EP 86116459A EP 86116459 A EP86116459 A EP 86116459A EP 0225547 A1 EP0225547 A1 EP 0225547A1
Authority
EP
European Patent Office
Prior art keywords
colored
iron powder
pigment
magnetic
binder
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
EP86116459A
Other languages
German (de)
English (en)
Other versions
EP0225547B1 (fr
Inventor
Werner Dr. Ostertag
Erwin Dr. Czech
Franz-Ulrich Dr. Schmitt
Detlef Dr. Schulze-Hagenest
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0225547A1 publication Critical patent/EP0225547A1/fr
Application granted granted Critical
Publication of EP0225547B1 publication Critical patent/EP0225547B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0831—Chemical composition of the magnetic components
    • G03G9/0832—Metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/104—One component toner

Definitions

  • the invention relates to colored one-component toners, which essentially consist of a magnetic pigment, a binder based on an organic polymer and / or a wax, a dye or pigment pigment homogeneously distributed in the binder and other auxiliaries.
  • Single component toners are known.
  • they also contain auxiliaries, such as antioxidants, additives, on which a certain electrostatic chargeability can be set, or, if appropriate, also hydrophobicized silica as a fluidizing agent to be applied externally.
  • Black one-component toners in particular have been described several times (inter alia in US Pat. No. 4,270,600).
  • magnetite is generally preferred as the magnetic component, while ferrites, iron powder or chromium dioxide are hardly used.
  • the toner particles on average 5 to 25 ⁇ m in size, are used in a variety of reprographic techniques for printing and copying purposes, for example in the field of electrophotography (xerography), electrography and magnetography.
  • colored one-component toners differ from the black ones in that, in addition to the above-mentioned components, they also contain color pigments or dyes, depending on whether red, yellow, blue or other colored toners are desired for copying or printing purposes.
  • the magnetic pigments used in particular the magnetite, but also the finely divided metal powders or the chromium dioxide, are black and the ferrites or iron oxides, which are also known, are colored brown, so that when coloring such toners always cloudy, dark Mixed colors emerge.
  • Another problem with the development of colored toners arises from the usually very high binder requirement of the color pigments. As a result, the color pigments additionally incorporated into the one-component toner composition impair the fixing properties of the toner particles.
  • JP-OS 7441/1985 describes the development of a ferrimagnetic mixed-phase pigment ZnO x FeO 1-x Fe2O3, in which the dark color of Fe3O4 is lightened by ZnFe2O4.
  • the brown-yellow colored mixed phase system however, only allows the production of ocher to red-brown one-component toners, so that the toners described here are of no importance for the general development of colored toners.
  • Similar procedures are described in JP-OSen 197O47 / 1984, 6952/1985 and 7438/1985.
  • the Japanese patents 119 2OO, 159 O19, 185 737 and 185 738 are used in a different way.
  • the magnetic powder is coated with a coating of a white opaque substance in order to subsequently incorporate the pigment masked in this way into a colored binder or a binder containing a colored pigment.
  • the magnetic powder can be combined with a titanium coupling agent, e.g. treat with a hydrolytically decomposing titanium ester, the TiO2-containing hydrolysis product being deposited on the magnetic pigment in the form of a film.
  • a titanium coupling agent e.g. treat with a hydrolytically decomposing titanium ester
  • the TiO2-containing hydrolysis product being deposited on the magnetic pigment in the form of a film.
  • Magnetic metals, magnetite, -Fe2O3 and ferrites are mentioned as magnetic materials.
  • This magnetizable conglomerate is produced by spray drying processes and then masked in an aqueous suspension with titanium dioxide using the "Kema-Nord process" and colored with dyes.
  • a major disadvantage of this process is its technical complexity, the fact that the magnetizable conglomerate is predominantly dark and opaque due to the fine magnetic powder and in the spray drying process, as a result of the heating, there is a partial loss of permeability due to oxidation reactions of the metallic magnetic particles.
  • the core is relatively weak magnetically because it is blended with resin.
  • the object of the present invention was therefore to provide colored one-component toners in lightened colors which do not have the aforementioned disadvantages.
  • the pigment should be suitable for overdyeing and have a small specific surface so that the fixing properties of the toner particles are not impaired due to the low binder requirement.
  • colored one-component toners which are composed essentially of a magnetic pigment, a binder based on an organic polymer and / or wax and a dye or color pigment homogeneously distributed in the binder, as well as other conventional auxiliaries, meet the requirements , if the magnetic pigment consists of iron powder with a spherical to elliptical particle shape and a grain size between 2 and 12 ⁇ m.
  • the special iron powder is used in combination with a white pigment made of titanium and / or tin dioxide.
  • the production of the special, spherical to elliptical particle shape iron powder with a grain size between 2 to 12 microns is easy to carry out, for example according to German Patent No. 5OO 692.
  • Such an iron powder shows a because of its shape, ie the lack of corners and edges low scatter and has a high optical brightness.
  • the shape of the particles also allows for easy incorporation into the binder and causes almost none Abrasion or wear on the copying and printing apparatus can be determined.
  • the suitable grain size range from 2 to 12 ⁇ m can expediently be chosen from 7 to 12 ⁇ m with regard to the magnetic properties.
  • these powders are subjected to a subsequent reductive treatment in a hydrogen atmosphere at elevated temperature, as a result of which the magnetite deposits which may be present on the surface are removed.
  • This is usually done at 25O to 8OO ° C, especially at 35O to 45O ° C. This allows the brightness of the magnetic pigments to be increased even further.
  • the colored one-component toners according to the invention are produced in a manner known per se.
  • the components, the special iron powder, the binder, the dye and / or the color pigment and the other auxiliaries are thoroughly kneaded, mechanically ground and sifted by a heated roller mill, a kneading device, an extrusion device or another device.
  • the substances mentioned can also be dispersed in a binder solution and the dispersion can be spray-dried.
  • Suitable binders which can be used in the production of the one-component toners according to the invention are homopolymers and copolymers of styrene and its substitution products, for example polystyrene, poly-p-chlorostyrene, polyvinyltoluene, styrene / p-chlorostyrene copolymer and styrene / vinyltoluene copolymer , Styrene / acrylic acid ester copolymers, for example styrene / methyl acrylate copolymer, styrene / ethyl acrylate copolymer and styrene / n-butyl acrylate copolymer, styrene / methacrylic acid ester copolymers, for example styrene / methyl methacrylate copolymer, styrene / ethyl methacryl
  • the dyes known in reprography can also be used.
  • Particularly suitable binder-soluble colorants are oil-soluble dyes which belong to the "Solvent Dye” group classified in the "Color Index” reference book, some of the disperse dyes which belong to the “Disperse Dye” group classified in this reference book, and some of the Vat dyes that belong to the "Vat Dye” group classified in this reference work.
  • Examples include copper phthalocyanide for blue, 3,3'-dichlorobenzidine, tetrazotized and coupled to 2 moles of 2,4-dimethylacetoessiganilide for yellow, 2,4,5-trichloroaniline diazotized and coupled to 3-hydroxy-2-naphthoic acid-o-toluidide for called red and chlorinated copper phthalocyanine pigment for green.
  • other organic and inorganic color pigments e.g. Ultramarine, iron oxides, Sicotane can be used successfully. All other additives in the construction of the one-component toners are summarized under the name auxiliaries.
  • antioxidants include antioxidants, charge control agents, anti-corrosion agents or inhibitors that prevent the iron powder from rusting. They are the ones commonly used in the manufacture of one-component toners.
  • white pigments is also known per se. Its effect in the colored one-component toners according to the invention is, on the one hand, the further brightening of the pigmented toners and, on the other hand, the reduction in the electrical conductivity of the toners, which is rather too high due to the iron powder present.
  • the preferred white pigment is titanium dioxide in the rutile modification, i.e. in a form that is largely inactive visually.
  • the proportion of the individual constituents in the composition of the one-component toners according to the invention is generally 10 to 50% by weight of binder, 20 to 60% by weight of magnetic pigment, 1 to 9% by weight of color pigment or dyes and 1 to 30% by weight of auxiliary substances.
  • the colored one-component toners according to the invention are distinguished by very good, brilliant shades and with very good fixability.
  • iron pentacarbonyl is injected and decomposed in a heated space decomposer that is flooded with ammonia at a wall temperature of 250 ° C.
  • this produces a metallic powder that is obtained in the grain size range from 2 to 12 ⁇ m with an average grain size of 6.4 ⁇ m.
  • the particle shape is characteristic of the resulting iron powder, as can be seen from the scanning electron micrograph of the powder (FIG. 1) and that of the cross section of a particle (FIG. 2).
  • the iron powder In its chemical composition, the iron powder consists of 97.5% by weight of iron, 0.9% by weight of carbon, 1% by weight of oxygen and 0.6% by weight of nitrogen.
  • the iron powder A is heated and cooled in a hydrogen stream at 45O ° C.
  • the iron particles obtained are freed of carbon, oxygen and nitrogen apart from small residual amounts.
  • the analysis shows: 99.7 wt .-% iron, O, O6 wt .-% carbon, O, 2 wt .-% oxygen and O, O4 wt .-% nitrogen.
  • the "onion structure" of the iron powder A shown in FIG. 2 is no longer present in the iron powder B, but the spherical shape is retained.
  • a preferred grain size fraction is made by air sifting. 5OO g of the iron powder described under A are placed in a storage vessel and transferred into a cyclone with a diameter of 65.0 mm by means of a stream of nitrogen. The coarser fraction obtained is obtained in 60% yield, the iron particles have grain sizes between 7 and 12 ⁇ m, with an average grain size of 8.2 ⁇ m. The chemical composition of the particles does not differ from iron powder A within the limits of error.
  • Table 1 shows magnetic values and BET surfaces, measured according to DIN 66131, paragraph 6.5, as well as the results of the brightness and transparency measurements.
  • Table 1 shows magnetic values and BET surfaces, measured according to DIN 66131, paragraph 6.5, as well as the results of the brightness and transparency measurements.
  • the measurement results of a for this purpose commercially used ⁇ -iron oxide and such a magnetite are compared.
  • the magnetic values were determined in a homogeneous magnetic field of 8OO kA / m with an oscillating magnetometer.
  • the brightness measurements were carried out using a Hunter Lab measuring device, type D 25-9 (Hunter Associates Inc., Fairfax, Virginia, USA) on smooth, opaque coated iron powder lacquer layers with a pigmentation of 75% by weight iron powder content according to the CIELAB -Measurement method.
  • the transparency was determined by measuring the brightness L * of lacquer layers 100 ⁇ m thick, each pigmented with 10% by weight iron powder content, over a white and black background. The greater the difference ⁇ L between the measured brightness values, the more transparent the pigment.
  • the color dimensions L *, a * and b * can be determined from the standard color values.
  • the magnetic values were measured in a homogeneous magnetic field of 16O kA / m with an oscillating magnetometer.
  • the toner powder was compressed in a highly insulated tablet press at a pressure of 10 bar at room temperature, and the area and thickness of the compact were determined. A voltage of 100 V was applied to the toner compact via gold contacts, and then the current flow was measured. The specific conductivity is calculated from the measured data , where the thickness of the compact, q is the cross section of the compact, U is the voltage and J is the current.
  • the color values were determined, as indicated, on compressed toner material (at 2 bar). For comparison, the measurement results on a toner that does not contain the special iron powder are compared. In addition, for comparison, toners were produced which contain commercial magnetite and maghemite ( ⁇ -Fe2O3) as the magnetic pigment. The color values are listed in Table 2 for comparison.
  • the fixability is checked by pressing a commercially available adhesive tape (scotch tape) on the copy and then peeling off the tape.
  • the brightness (L *) of the toners in Examples 3a to 3d is lower than that of the toners which contain only titanium dioxide, so that a deep blue color impression results.
  • the copies show a dark blue color, which is very similar to that of a blue ballpoint pen.
  • Example 2a 10 g of copper phthalocyanine pigment, 90 g of iron powder according to Example 1b, 36 g of titanium dioxide and 0.3 g of antioxidant were dispersed at 64 ° C. in 64 g of copolymers of styrene and ethylhexyl acrylate.
  • a fully covering toner tablet was pressed (2 bar) and the color values measured.
  • the color values of Examples 2b and 2d were compared, which contained the same magnetic pigment or no magnetic pigment.
  • the dark blue one-component toner was subjected to a copying test with a Panoly E-1O2 copier.
  • the copies are sharp, cover well on surfaces and are very easy to fiex on plain paper.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
EP86116459A 1985-12-04 1986-11-27 Toners à un seul composant colorés et procédé de leur préparation Expired - Lifetime EP0225547B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3542834A DE3542834A1 (de) 1985-12-04 1985-12-04 Farbige einkomponententoner und verfahren zu ihrer herstellung
DE3542834 1985-12-04

Publications (2)

Publication Number Publication Date
EP0225547A1 true EP0225547A1 (fr) 1987-06-16
EP0225547B1 EP0225547B1 (fr) 1990-07-11

Family

ID=6287582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116459A Expired - Lifetime EP0225547B1 (fr) 1985-12-04 1986-11-27 Toners à un seul composant colorés et procédé de leur préparation

Country Status (4)

Country Link
US (1) US4803143A (fr)
EP (1) EP0225547B1 (fr)
JP (1) JPH0658545B2 (fr)
DE (2) DE3542834A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620539A1 (fr) * 1987-09-10 1989-03-17 Canon Kk Poudre pigmentaire ou " toner " magnetique, developpateur a un constituant pouvant etre charge negativement et procede de formation d'images
EP0374851A2 (fr) * 1988-12-19 1990-06-27 Konica Corporation Agent de contraste magnétique

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3830778C2 (de) * 1987-09-10 1999-12-30 Canon Kk Magnetischer Toner und negativ aufladbarer Einkomponentenentwickler
DE3844968C2 (de) * 1987-09-10 2002-05-08 Canon Kk Bilderzeugungsverfahren
US5130219A (en) * 1989-04-17 1992-07-14 Canon Kabushiki Kaisha Color toner and process for fixing the same
US5102755A (en) * 1991-02-01 1992-04-07 Xerox Corporation Magnetic image character recognition processes
US5147744A (en) * 1991-02-28 1992-09-15 Xerox Corporation MICR processes with colored encapsulated compositions
US5914209A (en) * 1991-05-20 1999-06-22 Xerox Corporation Single development toner for improved MICR
US6342273B1 (en) 1994-11-16 2002-01-29 Dsm N.V. Process for coating a substrate with a powder paint composition
ITMI20020567A1 (it) * 2002-03-18 2003-09-18 Sud Chemie S R L Processo per la preparazione di ossidi di ferro
JP2010529237A (ja) 2007-06-05 2010-08-26 バンク オブ カナダ インクまたはトナー組成物、使用方法および当該方法から得られる生産物
DE102016009514A1 (de) * 2016-08-04 2018-02-08 Giesecke+Devrient Currency Technology Gmbh Verfahren und Vorrichtung zum Erzeugen von Kompositpartikeln

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE500692C (de) * 1925-05-24 1930-09-05 I G Farbenindustrie Akt Ges Verfahren zur Herstellung von reinem Eisen
DE2829317A1 (de) * 1977-07-05 1979-01-11 Konishiroku Photo Ind Eisenpulver-entwicklertraeger fuer elektrostatographische entwickler, verfahren zu seiner herstellung, diesen enthaltender entwickler und verfahren zur erzeugung sichtbarer bilder
US4238558A (en) * 1979-12-26 1980-12-09 Xerox Corporation Low density magnetic polymer carrier materials produced by metal carbonyl thermal decomposition
EP0048762A1 (fr) * 1980-04-03 1982-04-07 Toray Industries, Inc. Toner pour procede a sec
EP0075346A1 (fr) * 1981-09-18 1983-03-30 Océ-Nederland B.V. Poudre développatrice colorée, procédé pour sa préparation, et procédé de développement
EP0109860A1 (fr) * 1982-11-22 1984-05-30 Mita Industrial Co. Ltd. Révélateur du type à deux composants pour le développement à brosse magnétique
DE3428121A1 (de) * 1984-07-31 1986-02-13 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von eisenpulver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150173A (en) * 1976-08-02 1979-04-17 Xerox Corporation Process of preparing transparent colored magnetic materials
JPS54118250A (en) * 1978-03-06 1979-09-13 Minolta Camera Co Ltd Magnetic toner and production of the same
US4270060A (en) * 1979-10-10 1981-05-26 Hughes Aircraft Company Monolithic focal plane array having on-chip aperture corrector
JPS5797545A (en) * 1980-12-10 1982-06-17 Hitachi Metals Ltd Magnetic toner for electrophotography
US4474486A (en) * 1982-09-17 1984-10-02 The Pannier Corporation Apparatus for stamping characters on a workpiece in multiple rows
JPS6214166A (ja) * 1985-07-11 1987-01-22 Konishiroku Photo Ind Co Ltd 磁性トナ−

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE500692C (de) * 1925-05-24 1930-09-05 I G Farbenindustrie Akt Ges Verfahren zur Herstellung von reinem Eisen
DE2829317A1 (de) * 1977-07-05 1979-01-11 Konishiroku Photo Ind Eisenpulver-entwicklertraeger fuer elektrostatographische entwickler, verfahren zu seiner herstellung, diesen enthaltender entwickler und verfahren zur erzeugung sichtbarer bilder
US4238558A (en) * 1979-12-26 1980-12-09 Xerox Corporation Low density magnetic polymer carrier materials produced by metal carbonyl thermal decomposition
EP0048762A1 (fr) * 1980-04-03 1982-04-07 Toray Industries, Inc. Toner pour procede a sec
EP0075346A1 (fr) * 1981-09-18 1983-03-30 Océ-Nederland B.V. Poudre développatrice colorée, procédé pour sa préparation, et procédé de développement
EP0109860A1 (fr) * 1982-11-22 1984-05-30 Mita Industrial Co. Ltd. Révélateur du type à deux composants pour le développement à brosse magnétique
DE3428121A1 (de) * 1984-07-31 1986-02-13 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von eisenpulver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620539A1 (fr) * 1987-09-10 1989-03-17 Canon Kk Poudre pigmentaire ou " toner " magnetique, developpateur a un constituant pouvant etre charge negativement et procede de formation d'images
EP0374851A2 (fr) * 1988-12-19 1990-06-27 Konica Corporation Agent de contraste magnétique
EP0374851A3 (fr) * 1988-12-19 1991-01-30 Konica Corporation Agent de contraste magnétique

Also Published As

Publication number Publication date
US4803143A (en) 1989-02-07
JPH0658545B2 (ja) 1994-08-03
DE3672575D1 (de) 1990-08-16
EP0225547B1 (fr) 1990-07-11
JPS62229160A (ja) 1987-10-07
DE3542834A1 (de) 1987-06-11

Similar Documents

Publication Publication Date Title
DE2815857C2 (de) Toner für elektrostatografische Entwickler
DE1937651A1 (de) Photographische Entwicklerteilchen
DE1089265B (de) Entwicklerpulver fuer elektrostatische Kopierverfahren
EP0225547B1 (fr) Toners à un seul composant colorés et procédé de leur préparation
DE3739217A1 (de) Toner zur entwicklung von latenten elektrostatischen bildern
DE3315005C2 (fr)
DE2829317B2 (de) Trägerteilchen aus Eisen für elektrostatographische Entwickler, Verfahren zu ihrer Herstellung und Verwendung derselben
DE2606998A1 (de) Magnetisches entwicklerpulver zur entwicklung elektrostatischer latenter bilder und dessen herstellungsverfahren
DE2908652C2 (fr)
DE60126015T2 (de) Elektrografische Verfahren, die Entwicklerzusammensetzungen aus hartmagnetischen Trägerpartikeln verwenden
DE2725963A1 (de) Entwickler fuer latente elektrostatische bilder sowie ein verfahren zu dessen herstellung
DE2834309A1 (de) Einkomponenten-entwickler fuer elektrophotographische zwecke
DE2542374C3 (de) Druckfixierbare Tonerteilchen für einen elektrostatographischen Trockenentwickler
DE2603005C3 (de) Druckfixierbarer Toner für elektrostatographische Entwickler
DE3004152A1 (de) Magnetischer entwickler und verfahren zu dessen herstellung
DE2947962A1 (de) Elektrostatisches photographisches kopierverfahren
DE69122134T3 (de) Eisen als Hauptkomponente enthaltende magnetische Tonerteilchen und Verfahren zu ihrer Herstellung
DE3051020C2 (fr)
DE2902884A1 (de) Toner fuer die entwicklung von ladungsbildern
DE2452499C2 (de) Verfahren zur Herstellung eines elektrostatographischen Suspensionsentwicklers
EP0184714B1 (fr) Agent de contraste magnétique coloré, son procédé de fabrication et son application
DE2907633C2 (fr)
DE2606936A1 (de) Entwicklerpulver und verfahren zur herstellung
DE19604633A1 (de) Toner zur Farbelektrophotographie und Fixierverfahren unter dessen Verwendung
DE2825002A1 (de) Elektrophotographisches verfahren

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: A1

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

17P Request for examination filed

Effective date: 19870513

17Q First examination report despatched

Effective date: 19880812

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

REF Corresponds to:

Ref document number: 3672575

Country of ref document: DE

Date of ref document: 19900816

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ET1 Fr: translation filed ** revision of the translation of the patent or the claims
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

26N No opposition filed
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: FR

Payment date: 19981023

Year of fee payment: 13

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

Ref country code: NL

Payment date: 19981030

Year of fee payment: 13

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

Ref country code: CH

Payment date: 19981104

Year of fee payment: 13

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

Ref country code: GB

Payment date: 19981116

Year of fee payment: 13

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

Ref country code: BE

Payment date: 19981118

Year of fee payment: 13

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

Ref country code: DE

Payment date: 19981204

Year of fee payment: 13

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19991123

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991127

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

BERE Be: lapsed

Owner name: BASF A.G.

Effective date: 19991130

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000601

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19991127

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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 NON-PAYMENT OF DUE FEES;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.

Effective date: 20051127