EP0123308B1 - Procédé de matification locale de revêtements synthétiques et produits obtenus - Google Patents

Procédé de matification locale de revêtements synthétiques et produits obtenus Download PDF

Info

Publication number
EP0123308B1
EP0123308B1 EP84104555A EP84104555A EP0123308B1 EP 0123308 B1 EP0123308 B1 EP 0123308B1 EP 84104555 A EP84104555 A EP 84104555A EP 84104555 A EP84104555 A EP 84104555A EP 0123308 B1 EP0123308 B1 EP 0123308B1
Authority
EP
European Patent Office
Prior art keywords
process according
coating
initiators
initiator
carried out
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
EP84104555A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0123308A1 (fr
Inventor
Jean-François Courtoy
Daniel Marchal
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.)
Eurofloor SA
Original Assignee
Eurofloor SA
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 LU84765A external-priority patent/LU84765A1/fr
Priority claimed from LU84957A external-priority patent/LU84957A1/fr
Application filed by Eurofloor SA filed Critical Eurofloor SA
Priority to AT84104555T priority Critical patent/ATE28761T1/de
Publication of EP0123308A1 publication Critical patent/EP0123308A1/fr
Application granted granted Critical
Publication of EP0123308B1 publication Critical patent/EP0123308B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0028—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by colour effects, e.g. craquelé, reducing gloss
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/20—Applying plastic materials and superficially modelling the surface of these materials
    • B44C1/205—Applying plastic materials and superficially modelling the surface of these materials chemical modelling
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0007—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by their relief structure
    • D06N7/0013—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by their relief structure obtained by chemical embossing (chemisches Prägen)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0007—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by their relief structure
    • D06N7/0023—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by their relief structure obtained by physical means, e.g. differential heating or differential irradiation; masking certain areas during treating
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

Definitions

  • the present invention relates to a process for locally mattering a synthetic covering surface, more particularly a floor or wall covering based on PVC and the products obtained.
  • Said zones can for example be a pattern applied by printing on a coating or an imitation of a joint, in the case of a coating imitating a ceramic tile.
  • the matt state of the zone which is obtained by a grain-forming cylinder, disappears in any case partially, during the subsequent possibly local heating of said zone.
  • the present invention aims to provide an improved method which makes it possible to obtain a high degree of mattness on the surface of an area of a synthetic coating.
  • the object is achieved by a process in which locally deposited on a foamable support or not at least one coating or impression containing at least a first polymerization initiator and on the entire surface of the support at least one coating based of crosslinkable monomer containing at least a second polymerization initiator, at least two initiators being different and triggered either by different effects, or by the same effect for different spectral zones, the product obtained is pre-gelified after the second deposition at a temperature below the decomposition and / or degradation temperature of the constituents of said product; graining is carried out at least locally; only the coating based on crosslinkable monomer is polymerized in the surface covering the first initiator in order to fix its appearance by crosslinking and a gelling is carried out which, causing the fluidization of the non-crosslinked coating, causes the disappearance of the appearance grained in the uncrosslinked surface, and a crosslinking of the coating, not yet crosslinked, is carried out after possible expansion.
  • spectral zone is meant, in the broadest sense, temperature ranges, frequency ranges and other ranges capable of decomposing the initiator by forming the free radicals or ions necessary for propagation of chains in a polymerization reaction.
  • the process of the present invention therefore makes it possible to advantageously separate the polymerization initiations in the zones in question, depending on the products used so that the polymerization initiation of the coating based on crosslinkable monomer in the surface using the first initiator (first zone) is separated from the initiation of polymerization of the coating in the surface not using the first initiator (second zone).
  • an ink or a cut containing a UV polymerization initiator is deposited locally, and, over the entire surface of the coating, a coating based on crosslinkable monomer, which contains an initiator of thermal polymerization.
  • thermal initiators can be used at different initiation temperatures, or two UV initiators with different initiation UV frequencies. It is also possible to combine the abovementioned initiators together or to combine them with other polymerization initiators, such as ionic initiators, these can also be combined with one another. It can therefore be seen that the method of the invention allows many variants.
  • the first zone can advantageously be a joint between two tiles in the case of a coating imitating the ceramic coating.
  • the coating or printing of the first zone can be carried out on a foamable support or on a non-expandable or slightly expandable support.
  • At least one of the zones and preferably the zone of the joint in a pattern of tiles may contain an expansion inhibitor.
  • the method of the invention also has the advantage of allowing graining of the entire surface, without having to provide a particular grained cylinder controlled in accordance with the pattern or the decoration of the coating, since the zone which is not polymerized after graining will be fluidized during the subsequent gelation treatment and will be smoothed by surface tension.
  • Particularly preferred compounds are 1,4-butylene glycol dimethacrylate and trimethylolpropane trimethacrylate.
  • 1,1,3,3-tetramethylbutyl hydroperoxide, cumyl hydroperoxide, 2,5-dimethylhexane 2,5-dihydroperoxide, t-butyl hydroperoxide and peroxide are preferred.
  • the products Merck DAROCUR * 1173 or DAROCUR "1116 are preferably used in an amount of 1 to 50%, preferably 20% by weight, of the ink or of the cut.
  • TMA trimellitic anhydride
  • the coating containing the crosslinkable monomer as well as the initiator of the second zone, in the particular case the thermal initiator, contains 1 to 50%, preferably 11% by weight of monomer comprising at least two chain propagation sites, optionally mixed with monomers having a chain propagation site.
  • said second zone can be initiated directly or by means of a radiative energy transfer agent, so that each of the initiations can be triggered by its own physicochemical effect.
  • a radiative energy transfer agent so that each of the initiations can be triggered by its own physicochemical effect.
  • the initiation of polymerization of the second zone by direct radiative route or by means of an energy transfer agent can be carried out by X-ray radiation, an electron beam or by ⁇ radiation.
  • the energy transfer agent In order for the energy transfer agent to be able to fully exert its effect, it must act on a product for which sufficient mobility of the crosslinkable monomer is ensured.
  • This condition is best achieved from the hot industrial point of view by subjecting the product to an oven, preferably the oven in which gelation and / or possible expansion is carried out in a conventional manner or immediately upon leaving this oven when the product is still at a sufficient temperature.
  • an oven preferably the oven in which gelation and / or possible expansion is carried out in a conventional manner or immediately upon leaving this oven when the product is still at a sufficient temperature.
  • the different initiation effects used in the respective zones will of course be chosen so as to have sufficiently different initial effects to obtain the desired effect. For example, it might be difficult to master an operation in which two different UV initiators, i.e. triggered by different UV radiation ranges, would be used because the separation of the effects in the UV spectrum would be difficult to achieve.
  • the support consists of a substrate 1 and a coating at the rate of 500 g / m 2 of a foamable plastisol 2.
  • a coating of foamable plastisol we deposit (Figure 2), in one or more stages, in a first zone, according to a decoration imitating the design of a tiling joint 3, a conventional ink containing an expansion inhibitor and approximately 20% vol. of a DAROCUR® 1173 or 1116 UV initiator and, according to any decorative motif 4, an ink containing a UV initiator
  • the ink can be replaced by a cut, that is to say a solution without dye or pigment, depending on the decorative effects that one wishes to obtain.
  • This deposit is advantageously done by a gravure printing technique.
  • an acrylic monomer ROCRYL @ 980
  • the thermal initiator preferably cumyl hydroperoxide
  • FIG. 4 represents the graining step by means of a graining cylinder, over the entire surface, at a temperature which does not allow the polymerization of the plastisol, that is to say at a temperature above 100 ° C., under pressure depending on the desired degree of dullness.
  • the pre-gelation and graining steps can be carried out in a single step, using an adequately heated graining cylinder.
  • Passage under a UV lamp 7 makes it possible to crosslink the area containing the U.V. initiator so that the (grained) state of this area is fixed by the crosslinking.
  • the product obtained is passed, for one minute to two minutes and thirty seconds, in an oven at approximately 200 ° C., intended to expand the foamable coating 2 in places which do not contain an expansion inhibitor and to polymerize the area containing the thermal initiator.
  • the zone which has not been polymerized during the UV initiation undergoes during gelling, a fluidification which has the effect of smoothing the grained surface, while the grained and crosslinked zone during the initiation UV maintains its grainy (mat) state.
  • the product shown in FIG. 6 is obtained.
  • Example 2 The procedure is as in Example 1, with the difference however that the ink used contains 1 to 20% vol. of benzoyl peroxide dissolved in the minimum amount of ether or methyl ethyl ketone.
  • the coating deposited on the entire surface contains, as in Example 1, the other thermal initiator: cumyl hydroperoxide and the desired effect will in this case be caused by varying the initiation temperatures different from the initiators used.
  • a first heat treatment (pre-gelling) is indeed carried out at 120 ° C, followed by graining and finally a gelling and expansion step at 180-200 ° C which can be accompanied by mechanical smoothing .
  • Example 2 The procedure is as in Example 2 using 1 to 20% vol. of azoisobutyronitrile (AIBN) dissolved in the minimum amount of methyl ethyl ketone and added to the ink.
  • AIBN azoisobutyronitrile
  • the pregelling is advantageously carried out on a cylinder at 130 ° C., this temperature can even be exceeded as a function of the running speed of the product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
EP84104555A 1983-04-25 1984-04-21 Procédé de matification locale de revêtements synthétiques et produits obtenus Expired EP0123308B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104555T ATE28761T1 (de) 1983-04-25 1984-04-21 Verfahren zur oertlichen mattierung von synthetischen beschichtungen und so erhaltene produkte.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
LU84765 1983-04-25
LU84765A LU84765A1 (fr) 1983-04-25 1983-04-25 Procede de matification locale de revetements synthetiques et produits obtenus
LU84957 1983-08-11
LU84957A LU84957A1 (fr) 1983-08-11 1983-08-11 Procede de matification locale de revetements synthetiques et produits obtenus

Publications (2)

Publication Number Publication Date
EP0123308A1 EP0123308A1 (fr) 1984-10-31
EP0123308B1 true EP0123308B1 (fr) 1987-08-05

Family

ID=26640297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104555A Expired EP0123308B1 (fr) 1983-04-25 1984-04-21 Procédé de matification locale de revêtements synthétiques et produits obtenus

Country Status (12)

Country Link
US (1) US4608294A (enrdf_load_stackoverflow)
EP (1) EP0123308B1 (enrdf_load_stackoverflow)
CA (1) CA1251764A (enrdf_load_stackoverflow)
DE (1) DE3465208D1 (enrdf_load_stackoverflow)
DK (1) DK168743B1 (enrdf_load_stackoverflow)
ES (1) ES8503574A1 (enrdf_load_stackoverflow)
FR (1) FR2544635B1 (enrdf_load_stackoverflow)
GR (1) GR81939B (enrdf_load_stackoverflow)
IE (1) IE55251B1 (enrdf_load_stackoverflow)
IT (1) IT1209533B (enrdf_load_stackoverflow)
NO (1) NO164646C (enrdf_load_stackoverflow)
PT (1) PT78481B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080954A (en) * 1989-06-06 1992-01-14 Armstrong World Industries, Inc. Surface covering with inverse spherulite patterns
US5153047A (en) * 1989-06-06 1992-10-06 Armstrong World Industries, Inc. Release carrier with spherulite formations
US20020009554A1 (en) * 1997-06-26 2002-01-24 Weder Donald E. Preformed pot cover formed of polymeric materials having a texture or appearance simulating the texture or appearance of paper
US7081291B2 (en) * 2002-01-11 2006-07-25 Domco Tarkett Inc. Selectively embossed surface coverings and processes of manufacture
RU2286883C2 (ru) * 2002-01-11 2006-11-10 Таркетт Инк. Избирательно тисненое поверхностное покрытие (варианты) и способ его изготовления (варианты)
EP1493861A1 (en) * 2003-07-02 2005-01-05 Tarkett SAS Selectively embossed surface coverings and processes of manufacture
US8801887B2 (en) * 2005-12-23 2014-08-12 The Boeing Company Textured structure and method of making the textured structure
JP5373272B2 (ja) * 2007-06-18 2013-12-18 ニチハ株式会社 外壁板及びその塗装方法
RU2748351C2 (ru) * 2016-07-18 2021-05-24 БОЛЬЁ ИНТЕРНЕШЕНЛ ГРУП ЭнВи Многослойный лист, подходящий для применения в качестве напольного или настенного покрытия, характеризующегося трехмерным рельефом и декоративным рисунком

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1061259A (fr) * 1952-08-05 1954-04-12 Blanchiment Et Apprets De Tara Procédé et dispositif pour la fabrication de revêtements pour sols et planchers en chlorure de polyvinyle et produit en résultant
US3310422A (en) * 1965-07-16 1967-03-21 Congoleum Nairn Inc Smooth wear-resistant resilient floor covering and method of making same
US3844814A (en) * 1966-07-06 1974-10-29 Gen Aniline & Film Corp Foamed decorative covering material and method of manufacture
FR1538506A (fr) * 1966-07-25 1968-09-06 Ici Ltd Production d'une feuille thermoplastique pigmentée et gaufrée
US4068030A (en) * 1972-07-18 1978-01-10 Armstrong Cork Company Multilevel embossing by printing with a reactive monomer
GB1457001A (en) * 1973-07-06 1976-12-01 Marley Tile Co Ltd Surface covering materials
US4029831A (en) * 1975-06-19 1977-06-14 Masonite Corporation Method of making a multi-gloss panel
US4172169A (en) * 1976-10-01 1979-10-23 Nairn Floors Limited Floor or wall coverings
US4187131A (en) * 1978-02-21 1980-02-05 Congoleum Corporation Resinous polymer sheet materials having selective, surface decorative effects and methods of making the same
US4273819A (en) * 1980-07-10 1981-06-16 Congoleum Corporation Differential gloss products and methods of making the same
US4491616A (en) * 1982-05-28 1985-01-01 Congoleum Corporation Resinous polymer sheet material having surface decorative effects of contrasting gloss and method of making the same

Also Published As

Publication number Publication date
EP0123308A1 (fr) 1984-10-31
IE840967L (en) 1984-10-25
DE3465208D1 (en) 1987-09-10
FR2544635A1 (fr) 1984-10-26
GR81939B (enrdf_load_stackoverflow) 1984-12-12
IT8420662A0 (it) 1984-04-20
DK206884D0 (da) 1984-04-25
ES532397A0 (es) 1985-03-16
IT1209533B (it) 1989-08-30
IE55251B1 (en) 1990-07-18
FR2544635B1 (fr) 1986-10-03
NO841604L (no) 1984-10-26
DK206884A (da) 1984-10-26
NO164646C (no) 1990-10-31
US4608294A (en) 1986-08-26
ES8503574A1 (es) 1985-03-16
NO164646B (no) 1990-07-23
DK168743B1 (da) 1994-05-30
CA1251764A (en) 1989-03-28
PT78481B (fr) 1986-05-22
PT78481A (fr) 1984-05-01

Similar Documents

Publication Publication Date Title
EP0126314B1 (fr) Procédé de matification locale de revêtements synthétiques et produits obtenus
EP0123308B1 (fr) Procédé de matification locale de revêtements synthétiques et produits obtenus
US7276265B2 (en) Method of making a surface covering having gloss-in-register
CA1216817A (en) Multiple step uv curing process for providing accurately controlled surface texture
US4113487A (en) Method for manufacture of expanded articles having an embossed surface
WO2005077676A1 (ja) 水圧転写品
CZ2004790A3 (cs) Povrchová krytina se selektivní ražbou a způsob její výroby
US6759096B2 (en) Method for making differential gloss coverings
JPH0737172B2 (ja) 凹凸模様を有する表面加工印刷塗工物
BE899486A (fr) Procede de matification locale de revetements synthetiques et produits obtenus.
USRE33599E (en) Process for obtaining areas of distinctive appearance on synthetic coverings and the product derived therefrom
BE899487A (fr) Procede de matification locale de revetements synthetiques et produits obtenus.
Patil et al. Creating surface patterns of polymer brushes by degrafting via tetrabutyl ammonium fluoride
JPH08252899A (ja) 化粧材の製造方法
LU84957A1 (fr) Procede de matification locale de revetements synthetiques et produits obtenus
FR2575963A1 (fr) Procede d'obtention d'une matite locale de revetements synthetiques et produits obtenus
JP4107483B2 (ja) 窯業系化粧板の製造方法
JP4028028B2 (ja) 凹凸模様を有する無機質系化粧板及びその製造方法
JPH03275316A (ja) 凹凸表面を有する離型用シート及び該離型用シートの製造方法
JP3135319B2 (ja) 高級塗装感を有する化粧材及びその製造方法
JP2001301113A (ja) 目地付化粧板、及びそのの製造方法
NZ208389A (en) Producing matt and smooth zones on synthetic floor or wall covering
JP2005125580A (ja) 水圧転写方法
JPS5819634B2 (ja) 着色セラミツク製品の製造方法
FR2550242A1 (fr) Procede de fabrication de papiers peints a motif tridimensionnel destines au revetement decoratif de surfaces et papiers peints fabriques suivant ce procede

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): AT CH DE GB LI LU NL SE

17P Request for examination filed

Effective date: 19841206

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE GB LI LU NL SE

REF Corresponds to:

Ref document number: 28761

Country of ref document: AT

Date of ref document: 19870815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3465208

Country of ref document: DE

Date of ref document: 19870910

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
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 84104555.2

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

Ref country code: AT

Payment date: 19990401

Year of fee payment: 16

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

Ref country code: DE

Payment date: 19990402

Year of fee payment: 16

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

Ref country code: SE

Payment date: 20000331

Year of fee payment: 17

Ref country code: NL

Payment date: 20000331

Year of fee payment: 17

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

Ref country code: GB

Payment date: 20000403

Year of fee payment: 17

Ref country code: CH

Payment date: 20000403

Year of fee payment: 17

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

Ref country code: LU

Payment date: 20000410

Year of fee payment: 17

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

Ref country code: AT

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

Effective date: 20000421

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 NON-PAYMENT OF DUE FEES

Effective date: 20010201

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

Ref country code: LU

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

Effective date: 20010421

Ref country code: GB

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

Effective date: 20010421

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

Ref country code: SE

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

Effective date: 20010422

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: 20010520

Ref country code: CH

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

Effective date: 20010520

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: 20011101

EUG Se: european patent has lapsed

Ref document number: 84104555.2

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

Effective date: 20010421

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20011101