EP0101305B1 - Matériau de base pour mobilier - Google Patents

Matériau de base pour mobilier Download PDF

Info

Publication number
EP0101305B1
EP0101305B1 EP83304653A EP83304653A EP0101305B1 EP 0101305 B1 EP0101305 B1 EP 0101305B1 EP 83304653 A EP83304653 A EP 83304653A EP 83304653 A EP83304653 A EP 83304653A EP 0101305 B1 EP0101305 B1 EP 0101305B1
Authority
EP
European Patent Office
Prior art keywords
support material
elastomer
furniture support
yarn
strands
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
EP83304653A
Other languages
German (de)
English (en)
Other versions
EP0101305A2 (fr
EP0101305A3 (en
Inventor
James Gretzinger
Robert Lee Rackley
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0101305A2 publication Critical patent/EP0101305A2/fr
Publication of EP0101305A3 publication Critical patent/EP0101305A3/en
Application granted granted Critical
Publication of EP0101305B1 publication Critical patent/EP0101305B1/fr
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/208Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
    • D03D15/217Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/208Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
    • D03D15/225Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based artificial, e.g. viscose
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/56Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/573Tensile strength
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/02Cotton
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/10Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • D10B2321/101Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide modacrylic
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/06Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/10Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/04Heat-responsive characteristics
    • D10B2401/041Heat-responsive characteristics thermoplastic; thermosetting
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00Domestic or personal
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00Domestic or personal
    • D10B2503/06Bed linen
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00Industrial
    • D10B2505/08Upholstery, mattresses

Definitions

  • the orientable thermoplastic elastomer used n the furniture support material of the present invention can be a copolyetherester elastomer, a polyurethane elastomer, or a polyesteramide elastomer. It can be a solid monofilament, where the material of construction is the same throughout the monofilament, or a sheath/core monofilament, where the melting point of the sheath component is substantially lower than the melting point of the core component.
  • the M 20 strength i.e. the tensile strength at 20% elongation, measured according to ASTM D-412
  • the oriented thermoplastic elastomer monofilament should be 5,000-45,000 p.s.i. (34.5-310.3 MPa), preferably 15,000-25,000 (103.4-172.4 MPa).
  • copolyetherester polymers which can be used in the instant invention consist essentially of a multiplicity of recurring intralinear long-chain and short-chain ester units connected head-to-tail through ester linkages, said long-chain ester units being represented by the following structure: and said short-chain ester units being represented by the following structure: wherein:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Multicomponent Fibers (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)

Claims (18)

1. Un matériau de soutien pour mobilier en une configuration tissée, comprenant des brins qui se croisent dans une première direction et dans une deuxième direction perpendiculaire à la première direction, dans lequel les brins de la première direction comprennent du monofilament orienté d'élastomère thermoplastique et les brins de la deuxième direction comprennent du fil, les brins qui se croisent étant fixés entre eux aux points où ils se croisent, dans lequel le monofilament d'élastomère thermoplastique a une résistance MZO de 34 à 310 MPa, le fil a une résistance à la traction de 13,5 à 81 g/tex (1,5 à 9,0 g/denier), les filaments d'élastomère sont espacés de sorte que le nombre de duites par mètre soit dans la gamme de
Figure imgb0025
où (a) est l'aire de section des filaments en mm2, les brins de fil sont espacés de sorte que le nombre de brins par mètre soit dans la gamme de
Figure imgb0026
Figure imgb0027
et les brins sont liés entre eux par fusion partielle des brins d'élastomère.
2. Le matériau de soutien pour mobilier selon la revendication 1, que l'on a fabriqué en tissant des monofilaments orientés d'élastomère thermoplastique avec du fil, en une configuration d'armure gaze.
3. Le matériau de soutien pour mobilier selon la revendication 1, que l'on a fabriqué en tissant des monofilaments orientés d'élastomère thermoplastique avec du fil, en une configuration d'armure toile.
4. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 3, dans lequel la valeur du facteur K de fluage statique sous charge morte est inférieure à une variation de 3000% en grammes-déviation/m2 et le facteur K de fluage dynamique est inférieur à une variation de 2500% en grammes-déviation/m2.
5. Le matériau de soutien pour mobilier selon la revendication 4, dans lequel le fluage statique sous charge morte est inférieure à 20,0% de variation en déviation et le fluage dynamique est inférieure à 22,0% de variation en déviation.
6. Le matériau de soutien pour mobilier selon la revendication 5, dans lequel le fluage statique sous charge morte est inférieure à 14,0% de variation en déviation et le fluage dynamique est inférieure à 8,0% de variation en déviation.
7. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 6, dans lequel le rapport d'orientation de produit des brins d'élastomère est d'au moi,/ 3,0x.
8. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 7, dans lequel le monofilament d'élastomère thermoplastique a une résistance M20 de 103 à 172 MPa.
9. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 8, dans lequel l'élastomère thermoplastique est choisi dans le groupe formé des copolyéthers-esters, des polyuréthannes et des polyesters-amides.
10. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 9, dans lequel les brins d'élastomère sont d'une configuration gaine/coeur dans laquelle la gaine est un élastomère dont le point de fusion est inférieur d'au moins 20°C au point de fusion de l'élastomère du coeur.
11. Le matériau de soutien pour mobilier selon la revendication 10, dans lequel l'élastomère est un élastomère copolyéther-ester et est un monofilamente gaine/coeur dans lequel l'élastomère copolyéther-ester de gain contient au moins 25% en poids d'unités ester à chaîne courte et l'élastomère copolyéther-ester de coeur contient au moins 50% en poids d'unités ester à chaîne courte.
12. Le matériau de soutien pour mobilier selon la revendication 10 ou 11, dans lequel les filaments d'élastomère et les brins de fil sont liés aux points où ils se croisent par fusion partielle de l'élastomère de gaine.
13. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 12, dans lequel le fil a une résistance à la traction de 22,5 à 63 g/tex (2,5 à 7,0 g/denier).
14. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 13, dans lequel le fil est choisi dans le groupe formé des fibres de polyester, de coton, de nylon, de rayonne, acryliques, modacryliques et d'oléfine.
15. Le matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 14, dans lequel les brins de fibres de chaîne comprennent du fil de polyester et les brins de fibres de trame comprennent du monofilament d'élastomère copolyéther-ester.
16. Un fond de siège formé du matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 15.
17. Un dossier de siège formé du matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 15.
18. Un système de soutien de literie formé du matériau de soutien pour mobilier selon l'une quelconque des revendications 1 à 15.
EP83304653A 1982-08-12 1983-08-11 Matériau de base pour mobilier Expired EP0101305B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US40764782A 1982-08-12 1982-08-12
US407647 1982-08-12
US46009983A 1983-01-21 1983-01-21
US460099 1983-01-21

Publications (3)

Publication Number Publication Date
EP0101305A2 EP0101305A2 (fr) 1984-02-22
EP0101305A3 EP0101305A3 (en) 1985-01-02
EP0101305B1 true EP0101305B1 (fr) 1988-01-07

Family

ID=27019956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83304653A Expired EP0101305B1 (fr) 1982-08-12 1983-08-11 Matériau de base pour mobilier

Country Status (5)

Country Link
EP (1) EP0101305B1 (fr)
BR (1) BR8304290A (fr)
CA (1) CA1229027A (fr)
DE (1) DE3375170D1 (fr)
ES (1) ES8600431A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241973A1 (de) * 1992-12-12 1994-06-16 Akzo Nv Textile Flächenbebilde für Antivandalismus-Sitzbezüge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1000591C2 (nl) * 1995-06-19 1996-12-20 Blydestein Willink N V Weefsel.
EP0964944B1 (fr) * 1997-03-04 2002-08-28 E.I. Du Pont De Nemours And Company Monofilament d'elastomere resistant aux uv
ES1040793Y (es) * 1998-07-27 1999-09-01 Gamatex S A Tejido perfeccionado.
US20020098759A1 (en) * 1999-11-26 2002-07-25 Doug Salway Woven fabrics particularly useful in the manufacture of occupant support structures
PL3266914T3 (pl) * 2017-01-24 2020-05-18 Bright Cheers International Limited Wzmocniona tkanina kompozytowa i sposób jej wytwarzania
US11060215B2 (en) 2017-01-26 2021-07-13 Bright Cheers International Limited Reinforced composite fabric and method for preparing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248576B (de) * 1961-11-04 1967-08-24 Hch Kalbskopf Fa Elastisches Gurtengewebe
US3199548A (en) * 1963-05-02 1965-08-10 United Elastic Corp Elastic fabrics
NL7018014A (fr) * 1969-12-15 1971-06-17
FR2352905A1 (fr) * 1976-05-25 1977-12-23 Lescroart Louis Procede de tissage d'un tissu extensible dans deux directions et un tissu ainsi obtenu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241973A1 (de) * 1992-12-12 1994-06-16 Akzo Nv Textile Flächenbebilde für Antivandalismus-Sitzbezüge

Also Published As

Publication number Publication date
EP0101305A2 (fr) 1984-02-22
EP0101305A3 (en) 1985-01-02
CA1229027A (fr) 1987-11-10
ES524855A0 (es) 1985-10-01
BR8304290A (pt) 1984-03-20
ES8600431A1 (es) 1985-10-01
DE3375170D1 (en) 1988-02-11

Similar Documents

Publication Publication Date Title
US4469739A (en) Oriented woven furniture support material
US4469738A (en) Oriented net furniture support material
US6840066B2 (en) Webbing reinforced with high-performance polymeric yarns
CA1092908A (fr) Cable pour pneu, et pneu
US6632756B1 (en) Automotive fabric composite
US4298643A (en) Fiber sheet for forming
US5807794A (en) Reinforced knitted fabric structure useful in seating applications
CA2870432C (fr) Tissu etirable
MXPA96004727A (en) Woven fabrics and structures, containing hybrid threads, with adjustable waterproofing to gas and / or liquids, procedure for its rear transformation, flat textile structure with permeability prefixed to gas and / or liquids, and its use
TWI463054B (zh) The fabric material for sports equipment
EP0101305B1 (fr) Matériau de base pour mobilier
EP0107283B1 (fr) Matériau support pour tapisserie d'ameublement, comportant des fils croisés d'élastomère thermoplastique orienté
JP4449050B2 (ja) 土木用メッシュシート及びその製造方法
JP4064531B2 (ja) 自動車座席用織物
JP4314507B2 (ja) クッション材として好適な積層構造体
JP3591619B2 (ja) 産業資材用布帛
AU759242B2 (en) Conveyor belting with reinforcing fabric formed from three interlaced layers
JPS5988946A (ja) 配向された織物状の家具支持物質
JP3924277B2 (ja) ライナークロス
JPS627081B2 (fr)
JPS5985610A (ja) 配向された網状の家具支持物質
JP3832608B2 (ja) 耐久性に優れた弾性フィラメント及びその製造方法
KR100867752B1 (ko) 터프티드 브러쉬매트
JP3591620B2 (ja) 産業資材用樹脂加工布帛
JPH0136600Y2 (fr)

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 DE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

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

17P Request for examination filed

Effective date: 19850607

17Q First examination report despatched

Effective date: 19860605

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

ITF It: translation for a ep patent filed

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

REF Corresponds to:

Ref document number: 3375170

Country of ref document: DE

Date of ref document: 19880211

ET Fr: translation filed
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
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890811

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

Ref country code: SE

Effective date: 19890812

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

Ref country code: BE

Effective date: 19890831

BERE Be: lapsed

Owner name: E.I. DU PONT DE NEMOURS AND CY

Effective date: 19890831

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

Ref country code: NL

Effective date: 19900301

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19900427

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

Ref country code: DE

Effective date: 19900501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83304653.5

Effective date: 19900418