EP0473430B1 - Gewebe und Filz für Heizpresse aus PEEK fasern - Google Patents

Gewebe und Filz für Heizpresse aus PEEK fasern Download PDF

Info

Publication number
EP0473430B1
EP0473430B1 EP91307912A EP91307912A EP0473430B1 EP 0473430 B1 EP0473430 B1 EP 0473430B1 EP 91307912 A EP91307912 A EP 91307912A EP 91307912 A EP91307912 A EP 91307912A EP 0473430 B1 EP0473430 B1 EP 0473430B1
Authority
EP
European Patent Office
Prior art keywords
fabric
polyetherketone
peek
fibres
fibre
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.)
Revoked
Application number
EP91307912A
Other languages
English (en)
French (fr)
Other versions
EP0473430A3 (en
EP0473430A2 (de
Inventor
Robert Bernard Davis
Maryann C. Kenney
Charles Edwin Kramer
Sandra Krohto Barlow
Francis L. Davenport
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.)
Albany International Corp
Original Assignee
Albany International Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10681414&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0473430(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Albany International Corp filed Critical Albany International Corp
Publication of EP0473430A2 publication Critical patent/EP0473430A2/de
Publication of EP0473430A3 publication Critical patent/EP0473430A3/en
Application granted granted Critical
Publication of EP0473430B1 publication Critical patent/EP0473430B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/66—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyethers
    • D01F6/665—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyethers from polyetherketones, e.g. PEEK
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts

Definitions

  • This invention relates to a fabric for a paper making machine and to a method of manufacturing paper involving the use of such a fabric.
  • the invention relates to fibres and fabric for use in press felts to be employed in a high temperature environment.
  • EP-A-287 297 discloses a felt for use in a paper making machine comprising a woven base and a layer of batt fibre needled thereto; the batt fibre comprises fibres of polyamide 12.
  • Typical fibres are materials from the generic classes of polyaramids, polybenzimidazoles, polyetherimides, polysulfones, polyphenylene sulfide, and polyarylates. While all these materials have high temperature use capabilities, most do not possess adequate physical properties to be useful for press fabric applications. Many materials such as polysulfones and polyetherimides are non-crystalline materials which tend to deform under load at temperatures above their glass transition and suffer irreversible deformation upon repeated passage through a press nip. Other materials such as the polyaramids, polybenzimidazoles and polyarylates are semi-crystalline polymers, but are, in general, highly aromatic rigid materials which suffer brittle fracture in a press nip after a relatively few compression cycles.
  • EP-A-077 901 discloses an industrial fabric of woven monofilament threads and, in particular, a dryer fabric for a paper making machine comprising interwoven machine direction and cross-machine direction threads formed from a melt extrudable polyaryletherketone.
  • polyetherketones while being semi-crystalline and highly aromatic do not show brittle fracture at ambient or at elevated temperatures, when produced to have a specific fibre morphology.
  • a fabric for a paper making machine which fabric comprises a woven, knitted, braided or nonwoven substrate carrying batt fibre on the surface thereof, characterised in that at least the batt fibre comprises polyetherketone fibres.
  • the present invention also includes a method of manufacturing paper which method comprises forming a furnish of paper making constituents, introducing said furnish as a layer to a dewatering station to dewater said furnish to produce a cohesive sheet and thereafter pressing at an elevated temperature, wherein the paper is transported by continuous fabrics, and wherein the pressing and drying of the sheet in at least part of the process is conducted at a temperature in excess of 150°C, characterised in that the fabric,in at least said part of the process, is as specified above.
  • the present invention further provides the use of a fabric as specified above in a paper making machine.
  • the polyetherketone is selected from one or more of polyetherketone (PEK), polyetheretherketone (PEEK), polyetherketoneketone (PEKK) and polyetheretherketoneketone (PEEKK).
  • PEK polyetherketone
  • PEEK polyetheretherketone
  • PEKK polyetherketoneketone
  • PEEKK polyetheretherketoneketone
  • the polyetherketone may include an effective proportion of an anti-oxidant therefor.
  • Fibres used in the invention may be made from commercially available polyetherketones such as those commercially available under the registered trade mark "VICTREX, namely, “VICTREX PEK” or “VICTREX PEEK” both of which are currently commerically available from ICI Limited and are intended principally as injection molding materials, but they can be extruded into fine fibre or monofilament.
  • polyetherketones maintain a relatively cooler fabric surface temperature after passage through a heated press environment than other materials evaluated and may at the same time provide an enhanced sheet release characteristic.
  • higher fabric temperatures near the sticking point of lignin
  • cooler press fabric surfaces promote ease of sheet release.
  • the sheet contacting surface may comprise a polyetherketone which in use on a press exhibits a post-nip surface temperature of at least 15 centigrade degrees below that of a comparable fabric having a sheet contacting surface of poly-tetrafluorethylene when the latter is run under identical press conditions.
  • the polymer molecular weight is high and it has been found that the optimum properties in both the maintenance of molecular weight during extrusion and subsequent use is obtained if a proportion of anti-oxidant is compounded with the resin prior to extrusion.
  • Typical antioxidants suitable for use in the present invention are phenolic antioxidants and/or those based on ⁇ -tocopherol.
  • the fibre morphology for PEEK fibres for the Impulse Drying process requires a moderately drawn fibre with moderate orientation and crystallinity, and should not be at the extremes of low or high orientation and crystallinity, thus providing superior mechanical properties for Impulse Drying. Fibres with either low or high orientation and cystallinity result in more rapid and undesirable mechanical failure, such as flattening and fibrillation.
  • the orientation and the crystallinity should he selected to be within 30% to 75%, preferably 40% to 70% of the range between the low and high extremes of each of these properties.
  • the crystallinity of the polyetherketone fibres is within the range of 50 to 65% of the extremes of crystallinity for that particular polyetherketone employed.
  • the polyetherketone fibres may be PEEK fibresand may have a shrink force at 150°C not greater than 0.176 dN/tex (0.20 gpd).
  • polyetherketone fibres may be employed which have at least one yield point below 2.648 dN/tex ( 3.0 gpd).
  • Figure 1 is a photomicrograph of a sample PEEK-h of Example II.
  • Figure 2 is a photomicrograph of a sample PEEK-a of Example II.
  • Figure 3 is a plot of shrink force against temperatures for samples of Example II.
  • Figure 4 is a plot of applied stress against % elongation for samples of Example II.
  • a polyetheretherketone resin commercially available from ICI under the name Victrex PEEK 380G and hereinafter referred to as PEEK-a was extruded and drawn into approximately 19 dtex (17 denier) per filament multifilament yarn in a standard melt extrusion spinning operation.
  • the fibre produced had moderate orientation and moderate crystallinity.
  • the fibre was crimped and cut into 7.6 cm (3 inch) staple.
  • Fibre properties obtained were 2.74 dN/tex (3.1 g/den) tenacity, 31% elongation to break and 22.95 dN/tex (26 g/den) initial modulus. This fibre was carded into a web and needled onto the top surface of a pre-made press fabric.
  • the press fabric was run on a pilot machine press section to assess fibre performance.
  • card web samples of conventional polyamide fibres normally used in PMC applications and samples of representative high temperature fibres such as PBI polybenzimidazole, RYTON* polyphenylene sulfide, NOMEX* polyamide and KEVLAR* polyaramide were needled onto the same pilot fabric.
  • the fabric was run at the following conditions: Speed 1000 m/min Linear pressure 100 kN/m Felt tension 3 kN/m Suction vacuum 40 kPa Water temperature 60-65°C Total No. of compressions 106 Total running time 265 hr * registered trade marks
  • PEEK-a was a crimped fibre of 15dtex in 80mm staple length manufactured by Hoechst Aktiengesellschaft. Both PEEK-a and PEEK-h were of equivalent molecular weight but different in fibre morphology.
  • a layer of each PEEK fibre sample was needled onto the surface of the pilot press fabric in separate areas.
  • the fabric was run on a pilot press machine at the following wet pressing conditions: Machine speed: 1000 m/min Linear Pressure: 100kN/m Fabric Tension: 3 kN/m Suction Vacuum: 40 kPa Water spray Temp: 64-72°C Total No. of Compressions: 1,000,000
  • Figure 1 is a photomicrograph of PEEK-h; it can be seen that the fibres have undergone extensive flattening and fibrillation, as a result the dewatering ability of this sample is severely impaired.
  • Figure 2 the sample of PEEK-a shown in Figure 2 after 106 compressions, is in a much superior condition; although the fibres have undergone some flattening, the integrity of the fibres remains and the dewatering characteristics of the structure remain intact.
  • Shrink force data further corroborates higher orientation and crystallinity in PEEK-h fibre.
  • the shrink force values thoughout the test are consistently greater for PEEK-h fibre than for PEEK-a fibre.
  • Shrink force data at 80°C and 150°C are shown. The 80°C represents the water temperature used with current wet pressing technology while the 150°C temperature represents a typical Impulse Drying temperature.
  • Sample IV DSC (1st cycle) DMA Shrink Force ENDO Tm ENDO Peak Area Tm Tan Delta Max Temp. Tan Delta Max Value E' Value at Tan Delta Max Temps.
  • Figure 3 is a plot of shrink force measured in grammes per denier (gpd) as ordinate against temperature in °C as abscissa. The less oriented nature of the sample PEEK-a can be discerned clearly which compared with PEEK-h by the lower shrink force curve.
  • a needled nonwoven fabric was prepared by needling together successive card web layers of the same PEEK fibre as described in Example I. Each batt of approximately 120 gm/m weight was crosslapped at a 90° angle prior to needling. The total fabric product consisted of eight batt layers and was approximately 1000 gm/m in weight.
  • An identical fabric was prepared from commercial polyamide 6,6 fibre typical of that used for commercial paper machine clothing fabrics. Each fabric was used in an experiment to dewater a 25% solids paper sheet in an Impulse Drying apparatus similar to that described by Lavery, H.P. in CPAA Annual Meeting preprints, 73B: 121-126 (Jan 29, 1987). The PEEK sample successfully removed water from the paper to high levels of dryness without suffering apparent physical damage.
  • the polyamide sample in the same test fused to an impermeable mass during the initial impact.
  • the temperature of the falling plate was maintained at 300°C, peak pressure was 4138 kPa (600 psi) and equivalent nip residence time was 4.5 ms.
  • PEEK-i A sample of another PEEK fibre, spun from a commercially available resin, was evaluated on a pilot Impulse Drying machine.
  • This PEEK fibre designated PEEK-i is produced by ICI under the trade name ZYEX with a 13.3 dtex and 80 mm fibre length, and was spun to a similar fibre morphology as PEEK-a (moderate orientation and crystallinity).
  • the PEEK-i was part of a multi-candidate pilot fabric evaluation.
  • press roll temperatures as high as 205°C were tried. At this temperature, PEEK-i sample had excellent temperature resistance and sheet handling ability with acceptable dewatering performance.
  • Fibre U13 aromatic aliphatic polyamide resin which was spun into a fibre sample called Fibre U13 which is a fibre spun (at AIRESCO) from BASF ULTRAMID* T resin Grade KR4351, and a metaphenylene isothalamid called BXC.
  • PEEK-i, U13 and BXC were all high temperature materials, Fibres U13 and BXC had poor sheet handling properties. Fibres U13 and BXC surfaces were extremely tacky and did not release the paper sheet after passing through the heated press nip. PEEK-i had excellent sheet release properties.
  • PEEK-i sample was evaluated on another Impulse Drying pilot paper machine which includes a heated long nip press.
  • the PEEK-i fibre was prepared into a pilot size needled fabric and evaluated on the pilot machine at roll temperatures as high as 202°C, machine speeds as high as 10.16 m/s (2000 fpm) and roll pressures as high as 1172.50 kN/m (6700 pli).
  • roll temperatures as high as 202°C
  • machine speeds as high as 10.16 m/s (2000 fpm)
  • roll pressures as high as 1172.50 kN/m (6700 pli).
  • the surface temperature of the fabric which was measured throughout the trial remained relatively low. We believe maintenance of a low fabric surface temperature is critical for good sheet release.

Claims (14)

  1. Ein Tuch für eine Papiermaschine, welches Tuch ein gewebtes, gewirktes, geflochtenes oder nicht gebundenes Substrat umfaßt, das auf seiner Oberfläche eine Faserlage trägt, dadurch gekennzeichnet, daß zumindest die Faserlage Polyätherketonfasern umfaßt.
  2. Ein Tuch nach Anspruch 1, bei dem der Polyätherketon ausgewählt ist aus einem oder mehreren von Polyätherketon (PEK), Polyätherätherketon (PEEK), Polyätherketonketon (PEKK) und Polyätherätherketonketon (PEEKK).
  3. Ein Tuch nach Anspruch 1 oder Anspruch 2, bei dem der Polyätherketon einen effizienten Anteil an Antioxidationssubstanz enthält.
  4. Ein Tuch nach Anspruch 3, bei dem die Antioxidationssubstanz ausgewählt ist aus Phenolantioxidantien und/oder α-Tocopherol.
  5. Ein Tuch nach einem der Ansprüche 1 bis 4, bei dem die Fasern von mäßiger Orientierung und Kristallinität sind, so daß die Entwässerungscharakteristiken des Tuches nach wiederholtem Einsatz in Takt bleiben.
  6. Ein Tuch nach Anspruch 5, bei dem die mäßige Orientierung und Kristallinität innerhalb 30% bis 75% des Bereiches zwischen den unteren und oberen Extremen jeder dieser Eigenschaften für den jeweils verwendeten Polyätherketon liegen.
  7. Ein Tuch nach Anspruch 6, bei dem die mäßige Orientierung und Kristallinität innerhalb 40% bis 70% des Bereiches zwischen den unteren und oberen Extremen jeder dieser Eigenschaften für den jeweils verwendeten Polyätherketon liegen.
  8. Ein Tuch nach einem der Ansprüche 1 bis 4, bei dem die Kristallinität innerhalb 50% bis 65% des Bereiches zwischen den unteren und oberen Extremen der Kristallinität für den jeweils verwendeten Polyätherketon liegt.
  9. Ein Tuch nach einem der Ansprüche bis 8, bei dem die Polyätherketonfasern PEEK-Fasern sind mit einer Schrumpfkraft bei 150°C von nicht mehr als 0,176 dN/tex (0,2 gpd).
  10. Ein Tuch nach einem der Ansprüche bis 9, bei dem die Polyätherketonfasern eine Zugfestigkeitseigenschaft besitzen mit einem oder mehreren Nachgebepunkten unter 2,648 dN/tex (3,0 gpd).
  11. Ein Verfahren zum Herstellen von Papier, welches Verfahren das Bilden eines Papierstoffauflaufs umfaßt, das Einsetzen des Stoffes als eine Schicht in eine Entwässerungsstation zum Entwässern des Stoffs zum Erzeugen einer kohäsiven Bahn und nachfolgendes Pressen mit einer erhöhten Temperatur, wobei das Papier mittels kontinuierlicher Tücher transportiert wird und wobei das Pressen und Trocknen der Bahn in mindestens einem Teil des Prozesses bei einer Temperatur oberhalb 150°C ausgeführt wird, dadurch gekennzeichnet, daß das Tuch in zumindest dem genannten Teil des Prozesses wie in einem der Ansprüche 1 bis 10 beansprucht ist.
  12. Ein Verfahren nach Anspruch 11, bei dem das Tuch in einer Naßpressenpartie der Entwässerungsstation eingesetzt wird.
  13. Ein Verfahren nach Anspruch 11, bei dem das Tuch in einer Trockenpartie des Prozesses eingesetzt wird.
  14. Die Verwendung eines Tuches nach einem der Ansprüche 1 bis 10 in einer Papiermaschine.
EP91307912A 1990-08-31 1991-08-29 Gewebe und Filz für Heizpresse aus PEEK fasern Revoked EP0473430B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909018987A GB9018987D0 (en) 1990-08-31 1990-08-31 Peek hot press felts and fabrics
GB9018987 1990-08-31

Publications (3)

Publication Number Publication Date
EP0473430A2 EP0473430A2 (de) 1992-03-04
EP0473430A3 EP0473430A3 (en) 1993-01-20
EP0473430B1 true EP0473430B1 (de) 1996-03-20

Family

ID=10681414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91307912A Revoked EP0473430B1 (de) 1990-08-31 1991-08-29 Gewebe und Filz für Heizpresse aus PEEK fasern

Country Status (12)

Country Link
EP (1) EP0473430B1 (de)
JP (1) JP3005345B2 (de)
AT (1) ATE135756T1 (de)
AU (1) AU651841B2 (de)
BR (1) BR9103768A (de)
CA (1) CA2049585C (de)
DE (1) DE69118054T2 (de)
ES (1) ES2085968T3 (de)
FI (1) FI914102A (de)
GB (1) GB9018987D0 (de)
MX (1) MX9100888A (de)
NO (1) NO913376L (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7014733B2 (en) 2002-05-14 2006-03-21 Stowe Woodward L.L.C. Belt for shoe press and shoe calender and method for forming same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226592A1 (de) * 1991-08-23 1993-03-04 Inventa Ag Papiermaschinenfilze und verfahren zur herstellung derselben
GB2309712A (en) * 1996-02-05 1997-08-06 Shell Int Research Papermachine clothing woven from aliphatic polyketone fibres
DE19854732C1 (de) 1998-11-26 2000-09-14 Inventa Ag Kern-Mantel Bikomponentenfaser und deren Verwendung
EP2391749B1 (de) * 2009-02-02 2018-03-28 Arkema Inc. Hochleistungsfasern
US9422654B2 (en) 2009-03-20 2016-08-23 Arkema Inc. Polyetherketoneketone nonwoven mats

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359501A (en) * 1981-10-28 1982-11-16 Albany International Corp. Hydrolysis resistant polyaryletherketone fabric
JPS61171754A (ja) * 1985-11-09 1986-08-02 Kanegafuchi Chem Ind Co Ltd ビニル系樹脂組成物
JPS62231016A (ja) * 1986-03-28 1987-10-09 Teijin Ltd ポリ（アリ−ルエ−テルケトン）繊維の製造法
GB8709067D0 (en) * 1987-04-15 1987-05-20 Albany Int Corp Monofilaments
GB8827789D0 (en) * 1988-11-28 1988-12-29 Albany Research Uk Paper machine felts
US4896702A (en) * 1988-12-01 1990-01-30 Niagara Lockport Industries Inc. Seam construction for papermaking fabrics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7014733B2 (en) 2002-05-14 2006-03-21 Stowe Woodward L.L.C. Belt for shoe press and shoe calender and method for forming same

Also Published As

Publication number Publication date
GB9018987D0 (en) 1990-10-17
JP3005345B2 (ja) 2000-01-31
AU8340091A (en) 1992-03-05
DE69118054D1 (de) 1996-04-25
EP0473430A3 (en) 1993-01-20
NO913376L (no) 1992-03-02
FI914102A0 (fi) 1991-08-30
MX9100888A (es) 1992-04-01
AU651841B2 (en) 1994-08-04
ES2085968T3 (es) 1996-06-16
NO913376D0 (no) 1991-08-28
BR9103768A (pt) 1992-05-19
EP0473430A2 (de) 1992-03-04
FI914102A (fi) 1992-03-01
DE69118054T2 (de) 1996-09-12
JPH0673684A (ja) 1994-03-15
ATE135756T1 (de) 1996-04-15
CA2049585C (en) 1995-03-28
CA2049585A1 (en) 1992-03-01

Similar Documents

Publication Publication Date Title
KR930003396B1 (ko) 고밀도 파라-아라미드 종이 및 이의 제조방법
EP2392699B1 (de) Geweben aus geformten Monofilamenten mit Rillen
CA1312492C (en) Paper making felts
US5200260A (en) Needled papermaking felt
EP0473430B1 (de) Gewebe und Filz für Heizpresse aus PEEK fasern
EP0460135B1 (de) Filze für Papiermaschine
EP0372769B1 (de) Papiermacherfilz
EP1085126B1 (de) Übertragungsband für eine nasse Bahn
EP2250303B1 (de) Papiermaschinenbespannungen mit monofilamenten mit einer polyestermischung
US6462145B1 (en) Polymer blends of trimethylene terphthalate and an elastomeric polyester
US5863390A (en) Paper making felt with PBO fiber batt layers
KR101558143B1 (ko) 다공성 및 조절된 가소화 표면을 가지는 산업용 직물
WO1995028519A1 (en) Papermachine clothing
JPH11107147A (ja) 耐薬品性複合化布帛及びそれを用いた成形体
EP0996540A1 (de) Optische faser mantel
WO2001006046A1 (en) Industrial fabrics having components of polytrimethylene terephthalate

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): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930625

17Q First examination report despatched

Effective date: 19930826

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALBANY INTERNATIONAL CORP.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960320

Ref country code: DK

Effective date: 19960320

REF Corresponds to:

Ref document number: 135756

Country of ref document: AT

Date of ref document: 19960415

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SCHMAUDER & WANN PATENTANWALTSBUERO, INHABER KLAUS

REF Corresponds to:

Ref document number: 69118054

Country of ref document: DE

Date of ref document: 19960425

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2085968

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
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: 19960831

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: FILZTUCHVERWALTUNGS GMBH

Effective date: 19961219

NLR1 Nl: opposition has been filed with the epo

Opponent name: FILZTUCHVERWALTUNGS GMBH

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

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

Ref country code: ES

Payment date: 19990803

Year of fee payment: 9

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

Ref country code: SE

Payment date: 19990804

Year of fee payment: 9

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

Ref country code: FR

Payment date: 19990810

Year of fee payment: 9

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

Ref country code: AT

Payment date: 19990812

Year of fee payment: 9

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

Ref country code: GB

Payment date: 19990825

Year of fee payment: 9

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

Ref country code: DE

Payment date: 19990827

Year of fee payment: 9

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

Ref country code: NL

Payment date: 19990830

Year of fee payment: 9

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

Ref country code: CH

Payment date: 19990930

Year of fee payment: 9

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

Ref country code: BE

Payment date: 19991013

Year of fee payment: 9

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

27W Patent revoked

Effective date: 20000810

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20000810

NLR2 Nl: decision of opposition
PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO