EP0661218B1 - Capuchon de fermeture en matière plastique à joint interne à ventilation précoce - Google Patents

Capuchon de fermeture en matière plastique à joint interne à ventilation précoce Download PDF

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Publication number
EP0661218B1
EP0661218B1 EP94810648A EP94810648A EP0661218B1 EP 0661218 B1 EP0661218 B1 EP 0661218B1 EP 94810648 A EP94810648 A EP 94810648A EP 94810648 A EP94810648 A EP 94810648A EP 0661218 B1 EP0661218 B1 EP 0661218B1
Authority
EP
European Patent Office
Prior art keywords
inner seal
venting
container
opening
cap
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 - Lifetime
Application number
EP94810648A
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German (de)
English (en)
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EP0661218A1 (fr
Inventor
Georg Pfefferkorn
Michael Kirchgessner
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.)
obrist Closures Switzerland
obrist Closures Switzerlandroemerstrasse 83 Ch 41
Original Assignee
Crown Cork AG
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Filing date
Publication date
Application filed by Crown Cork AG filed Critical Crown Cork AG
Publication of EP0661218A1 publication Critical patent/EP0661218A1/fr
Application granted granted Critical
Publication of EP0661218B1 publication Critical patent/EP0661218B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1661—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of a passage for the escape of gas between the closure and the lip of the container mouth
    • 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
    • Y10S215/00—Bottles and jars
    • Y10S215/01—Fins

Definitions

  • the invention relates to a screw cap Plastic material according to the preamble of claim 1.
  • screwable is to be understood here so that both Caps with screw thread and bayonet locks are recorded.
  • Such caps are already known and in use for a long time especially for closing bottles for carbonated Soft drinks used. Acting with the bottles often reusable glass or PET bottles. There the container mouth is common, particularly with reusable bottles damaged, are preferred for sealing the container inner seals protruding into the container mouth are used. As a result, the primary sealing section is somewhat inside offset the bottle mouth. Even if the mouth area is damaged optimal sealing effect is achieved. EP-118 267 shows such a closure cap.
  • This configuration of the inner seal leads to the upper area of the insertion section Container can close tightly when the actual Sealing section of the inner seal already outside the container mouth located. This leads to an unnecessarily late Pressure reduction when unscrewing the cap. Per se you could overcome this disadvantage by shortening the insertion section to encounter. However, a certain length of it is necessary to reliably and gently insert the inner seal.
  • the known inner seals have the further disadvantage that that the outer surface of the insertion section, which is connected to the container mouth be the first to come into contact with a smooth outer surface having. Rough, irregular, or damaged Places at the container mouth can therefore through the insertion are hardly smoothed and there is a risk of that the sealing area essential for sealing is injured becomes.
  • FR 2 607 786 is a closure system for bottles known which the escape of contained in the bottles Gases allowed. But it's not about carbonated Drinks, but primarily around pharmaceutical Products. This locking system is related to Carbonated drinks cannot be used because of the Thread of the cap with the bottle mouth except Encroachment while the inner seal is still sealing the inner surface of the container mouth. For carbonated Such a cap would be used for drinks Jump off unscrew.
  • the inner seal has a sealing section and an insertion section below the sealing section.
  • the Sealing section is that part of the inner seal that is attached to the Cap the container mouth on the inside touched and forms a seal.
  • the introductory section primarily serves the reliable and gentle introduction of Inner seal in the container mouth. This can be due to further subdivide their functions.
  • the foremost Section of the insertion section is the centering zone in which the outside diameter is smaller than the diameter of the container mouth is. It centers and guides the inner seal when putting on the sealing cap. After the centering zone follows a clamping zone in which the outside diameter is larger than the diameter of the container opening.
  • the ventilation recess forms a connection to the interior of the container, as soon as the sealing section is out of engagement with the container mouth is coming. It prevents the introducer from using the container mouth can form a seal and thus ensures for venting the container at the earliest possible Time. This ensures that the internal thread the cap until the vent is inserted engages with the external thread of the container neck. The danger of the cap suddenly jumping off when unscrewing them due to excessive internal pressure and venting the container too late is thus reduced.
  • the ventilation recess is designed so that it extends at least over the entire height of the clamping zone. This ensures that there is an open air duct as soon as the sealing section is out of engagement with the container mouth located.
  • the number of ventilation cutouts as well as their width and Depth affect the rate of venting at Open the container. It should be noted that the entry zone its management function in the area of the ventilation recess not fulfilled. To destroy the sealing section in the Preventing the area of the ventilation recess is an advantage made sure that the width of the vent recess Does not exceed 1/15 of the circumference of the inner seal.
  • a sliding zone in which the outer diameter to the lower Decreases towards the end.
  • the outer diameter of the inner seal has a local one Minimum value so that at the upper end of the sliding zone a locally maximum outer diameter arises that is larger than the diameter of the container mouth to be closed.
  • This is advantageously chosen to be as large as possible, but in such a way that when the cap is on, as soon as the sealing section penetrates into the container mouth, from the inner wall of the container is lifted off.
  • This configuration has the advantage that the insertion section when screwing on the The sealing cap rests on the inside surface of the mouth as soon as the sliding part has penetrated into the container mouth. In order to the friction effect of the insertion section is also in the area the inner surface of the mouth.
  • the shape of the ventilation cutout itself is also influenced sustained the friction effect of the insertion section.
  • the friction effect is advantageously strengthened when between ventilation cutouts Cutting edges for leveling irregular or Damaged edges of plastic containers provided are.
  • the venting recess is with the gap between compare two saw teeth.
  • the cap made of relatively soft plastic, were with achieves the best results at a rake angle of approximately 0 °.
  • the surface of the ventilation recess, on Screw-on direction of rotation looks at the front end of the same, the rake face, which is roughly at right angles along a cutting edge on the envelope surface of the insertion section connects.
  • the cutting edge is thus aligned so that when turning the cap in the screw-on direction can work as a cutting edge.
  • Optimal results are with Rake angles in the range of +/- 10 ° reached.
  • this primitive plastic cutter can also be used with plastic containers no actual machining process can be achieved. This is also not intended, otherwise plastic chips would fall into the drink. It actually does a kind of plastic deformation of burrs and Notches, which actually suggest a negative rake angle would. However, due to the soft cutting material nevertheless with best rake angles of about 0 ° reached.
  • the cap can therefore be further improve by adding several venting cutouts evenly distributed over the circumference of the inner seal will. Particularly good friction properties are achieved if the ventilation cutouts are evenly spaced from each other, especially if one Large number of ventilation cutouts directly next to each other to be ordered. This reduces the outside area the inner seal in the area where the ventilation recesses are touch on individual edges. At the Unscrew the cap is the contact surface in the Insertion zone consequently limited to individual edges what results in a high surface pressure. This has a positive effect on the friction and smoothing effect.
  • too symmetrical ventilation cutouts can be used. Out of it this results in a cutting edge geometry with a negative rake angle and positive clearance angle, both having the same value. This creates similar friction properties when screwing on and off reached. Good results are achieved with chip and Clearance angle of less than 60 ° reached.
  • Figure 1 shows the sectional view of a container mouth with a sealing cap, which is used until ventilation begins was unscrewed.
  • the cap consists of a cylindrical cap wall 1 and a closing this Cap base 2. Extends from the inner surface 3 of the cap base an inner seal 4 coaxial with the cap wall 1 towards the cap opening. The cap is complete screwed onto the container neck, so touches the outer surface the inner seal the inner surface 23 of the container mouth in a limited area. This area is called Sealing section 5 called. Your outside diameter is larger than the diameter 8 of the container mouth. Below the The sealing section is followed by the insertion section 6, in which the outer diameter decreases conically towards the bottom.
  • the insertion section remains in as long as it is unscrewed Make contact with the container mouth until the inner seal has expanded to its relaxed normal position.
  • the introductory section is thus divided into two areas: the lower one
  • the area of the insertion section is used to center the inner seal onto the container mouth, and the clamping zone begins there, where the outside diameter of the insertion section is 8 the container opening is reached.
  • the inner seal has several in the area of the insertion section Ventilation cutouts. These prevent the inner seal when unscrewing the cap in the area the clamping zone can form a seal.
  • the venting recesses 9 begin directly below the Sealing section. In the closure cap shown here the sealing section is just outside the container mouth. Gas from the container can pass through the vent cutouts 9 flow in the direction of the arrow y.
  • Figure 2 shows the sectional view of a container mouth with a sealing cap with a partially interrupted one Introductory section.
  • the vent holes used in this example are slits that define the lead-in zone divide into individual guide cams 22. This continuous Slots cause the container to vent very quickly, as soon as the sealing section is out of engagement with the container mouth is coming.
  • the cap has a right-handed one Screw thread, so that viewed in screw-on direction 17 located at the front end of the ventilation recess Part 16 of the recess surface when screwing on as Rake surface acts and with the outer surface of the inner seal forms a cutting edge.
  • the insertion cam 22 due to the clearance angle of 0 ° not actually from cutting Sense to speak is used in the here Terminology still includes the terms rake face and cutting edge used.
  • the sealing area is an inventive Cap shown in section.
  • the inner seal has a local maximum 15 in the area of the insertion section 6 on.
  • the centering and preload function of the insertion section will be below the maximum diameter mentioned Sliding zone 13 adopted.
  • the sliding zone itself is functionally divided into a centering zone 25, in which the Outside diameter is smaller than the diameter 8 of the container mouth, and a clamping zone 26 in which the outer diameter is larger than the diameter 8 of the container mouth.
  • the container mouth to be closed is through a dash-dotted line is indicated.
  • Between the local Maximum 15 and the sealing section 5 has an inner seal groove-shaped depression so that the outer diameter decreases to a local minimum 14. This will make the smoothing Frictional effect of the insertion zone in an advantageous manner the inner surface of the container mouth expanded.
  • the friction acts on the inside edge of the container mouth until the sliding zone 13 has penetrated completely into the container mouth.
  • the position becomes locally pushed maximum diameter into the container mouth and the frictional effect on the inner surface of the Container mouth moved. This also causes surface defects on the inside of the mouth through the insertion section smoothed.
  • the preload of the inner seal is in this Phase not further increased. Only if after further unscrewing the sealing section 5 penetrates into the mouth of the container the preload of the inner seal is slightly increased again, whereupon the main force of the preloaded inner seal on the Sealing area is a burden.
  • the maximum diameter of the introducer is advantageously chosen so that it is complete is relieved as soon as the sealing section into the container mouth penetrates.
  • Figure 4 shows the sectional view of the sealing area a screwed cap.
  • the clasp is in place in the fully unscrewed position and the inner seal touches the inside mouth surface 23 of the container only in the area of sealing section 5.
  • Figure 5 shows a cross section through the plane A-A according to Figure 6. This is an inner seal, the Outside diameter in the area of the insertion 6 a local Maximum.
  • FIG. 6 shows a section of the side view of an inner seal, whose outer diameter, as can be seen from Figure 5 is a local maximum in the area of the introductory section having.
  • the inner seal shows in the insertion entire scope a variety of directly adjacent Venting cutouts 9.
  • two adjacent ventilation cutouts touch each other 9 only in one point, namely where the Outside diameter of the insertion section is largest.
  • This Point is also the most important for the friction effect, there, as explained for Figure 3, by this point also at the A friction effect occurs inside the mouth.
  • the cutouts that directly adjoin each other are given the Introductory section a profile that has the character of a Cutting tool has, there is a positive clearance angle.
  • Figure 7 shows the inner seal shown in Figure 6 the view from below (direction B according to FIG. 6). From this The representation is the cutting-shaped embossing through the ventilation cutouts evident. On the screw-on direction looks at the front of the vent hole The rake face 16 forms an angle of approximately 90 ° with the Envelope surface of the inner seal, which has a rake angle of O ° corresponds. In the figure is a with dashed lines preferred range of +/- 10 ° for the selection of the rake angle ⁇ drawn. Closes at the rear end of the recess the free area 21 at a rather flat angle to the same Envelope surface. In this example, both free space 21 as well as rake face 16 as parallel to the cap axis standing level.

Claims (12)

  1. Combinaison formée d'un couvercle à vis en matière plastique et d'un récipient présentant une ouverture apte à être fermée par ce couvercle,
       le couvercle comportant une paroi cylindrique qui est pourvue d'un filetage apte à être mis en prise avec un filetage extérieur de l'ouverture de récipient, et un fond qui ferme ladite paroi et à partir de la surface intérieure duquel s'étend un joint d'étanchéité intérieur présentant sur son côté extérieur une partie d'étanchéité circulaire pour l'étanchéité, côté intérieur, d'une surface intérieure cylindrique de l'ouverture du récipient,
       le joint d'étanchéité intérieur comportant, au-dessous de la partie d'étanchéité, une partie d'introduction (6) dont le diamètre extérieur, à son extrémité inférieure (7), est inférieur, dans une zone de centrage, et supérieur, dans une zone de contrainte (26), au diamètre intérieur de l'ouverture de récipient à fermer,
       et la surface extérieure du joint d'étanchéité intérieur présentant dans la zone de la partie d'introduction (6) au moins un évidement d'évacuation de gaz (9),
       caractérisée en ce que le joint d'étanchéité intérieur (4) présente un diamètre extérieur maximal dans la zone de la partie d'étanchéité (5), en ce que l'évidement d'évacuation de gaz (9) s'étend au moins sur toute la hauteur de la zone de contrainte (26), de sorte qu'une évacuation de gaz commence dès que la partie d'étanchéité cesse d'être en prise avec la surface intérieure de l'ouverture du récipient, et en ce que la partie d'étanchéité et les évidements d'évacuation de gaz sont disposés de telle sorte que le couvercle soit en prise de façon fiable avec le filetage extérieur du goulot du récipient jusqu'à ce que l'évacuation de gaz commence.
  2. Combinaison selon la revendication 1, caractérisée en ce que le diamètre extérieur du joint d'étanchéité intérieur, dans la zone de la partie d'introduction (6), va en diminuant vers l'extrémité inférieure (7).
  3. Combinaison selon la revendication 1, caractérisée en ce que la partie d'introduction (6) présente dans sa zone inférieure une zone de glissement (13) dans laquelle le diamètre extérieur va en diminuant vers l'extrémité inférieure, et en ce que le diamètre extérieur présente une valeur minimale locale (14) entre la zone de glissement (13) et la partie d'étanchéité (5), de sorte qu'il se forme à l'extrémité supérieure de ladite zone de glissement un diamètre extérieur maximal local (15) qui est supérieur au diamètre intérieur (8) de l'ouverture de récipient à fermer.
  4. Combinaison selon l'une des revendications 1 à 3, caractérisée en ce que la largeur (11) de l'évidement d'évacuation de gaz ne dépasse pas 1/15 de la circonférence du joint d'étanchéité intérieur.
  5. Combinaison selon l'une des revendications 1 à 4, caractérisée en ce que, à l'extrémité avant de l'évidement d'évacuation de gaz (11), dans le sens de vissage (17), la surface (12) dudit évidement (11) fait suite à la surface d'enveloppe de la partie d'introduction sous la forme d'une face de coupe (16) à peu près à angle droit le long d'une arête coupante (18).
  6. Combinaison selon l'une des revendications 1 à 5, caractérisée en ce que plusieurs évidements d'évacuation de gaz (9) sont répartis sur la circonférence du joint d'étanchéité intérieur.
  7. Combinaison selon la revendication 6, caractérisée en ce qu'il est prévu, entre les évidements d'évacuation de gaz, des arêtes coupantes destinées à égaliser des bords d'ouvertures irréguliers ou endommagés de récipients en matière plastique.
  8. Combinaison selon la revendication 6 ou 7, caractérisée en ce que les évidements d'évacuation de gaz sont disposés à égale distance les uns des autres.
  9. Combinaison selon la revendication 8, caractérisée en ce que les évidements d'évacuation de gaz (9) se trouvent tout près les uns des autres.
  10. Combinaison selon la revendication 9, caractérisée en ce que, à l'extrémité arrière (19) de l'évidement d'évacuation de gaz (9), dans le sens de vissage (17), la surface dudit évidement (9) fait suite à la surface d'enveloppe de la partie d'introduction sous la forme d'une face de dépouille (21) suivant un angle plat.
  11. Combinaison selon l'une des revendications 1 à 10, caractérisée en ce que le joint d'étanchéité intérieur présente au minimum 25 et au maximum 50 évidements d'évacuation de gaz (9).
  12. Utilisation d'un couvercle comportant une paroi cylindrique (1) et un fond (2) qui ferme celle-ci et à partir de la surface intérieure (3) duquel s'étend un joint d'étanchéité intérieur (4) présentant sur son côté extérieur une partie d'étanchéité circulaire (5) qui est destinée à rendre étanche, côté intérieur, une surface intérieure cylindrique de l'ouverture de récipient à fermer,
       le joint d'étanchéité intérieur comportant, au-dessous de la partie d'étanchéité (5), une partie d'introduction (6) dont le diamètre extérieur va en diminuant vers le bas,
       et le joint d'étanchéité intérieur (4) présentant dans la zone de la partie d'étanchéité (5) un diamètre extérieur maximal tandis que la partie d'introduction (6) comporte une zone de centrage et une zone de contrainte (26),
       la surface extérieure du joint d'étanchéité intérieur comportant dans la zone de la partie d'introduction (6) au moins un évidement d'évacuation de gaz (9),
       le joint d'étanchéité intérieur (4) étant apte à être introduit avec la zone de centrage dans l'ouverture du récipient,
       le joint d'étanchéité intérieur étant apte à être mis en prise avec l'ouverture du récipient et à être soumis à une contrainte préliminaire,
       et l'évidement d'évacuation de gaz (9) s'étendant au moins sur toute la hauteur de la zone de contrainte (26), de sorte qu'une évacuation de gaz commence dès que la partie d'étanchéité cesse d'être en prise avec la surface intérieure de l'ouverture du récipient, dans une combinaison formée d'un couvercle et d'un récipient selon l'une des revendications 1 à 11.
EP94810648A 1993-12-23 1994-11-14 Capuchon de fermeture en matière plastique à joint interne à ventilation précoce Expired - Lifetime EP0661218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH387393 1993-12-23
CH3873/93 1993-12-23

Publications (2)

Publication Number Publication Date
EP0661218A1 EP0661218A1 (fr) 1995-07-05
EP0661218B1 true EP0661218B1 (fr) 1998-07-29

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EP94810648A Expired - Lifetime EP0661218B1 (fr) 1993-12-23 1994-11-14 Capuchon de fermeture en matière plastique à joint interne à ventilation précoce

Country Status (19)

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US (1) US5803286A (fr)
EP (1) EP0661218B1 (fr)
JP (1) JPH07206018A (fr)
KR (1) KR100381092B1 (fr)
CN (1) CN1038024C (fr)
AU (1) AU684564B2 (fr)
BR (1) BR9405175A (fr)
CA (1) CA2137035C (fr)
CO (1) CO4370041A1 (fr)
DE (1) DE59406560D1 (fr)
ES (1) ES2119132T3 (fr)
HU (1) HU218165B (fr)
IL (1) IL111841A (fr)
MX (1) MX9500182A (fr)
NZ (1) NZ270227A (fr)
PL (1) PL175697B1 (fr)
RU (1) RU2114035C1 (fr)
SA (1) SA95150463B1 (fr)
ZA (1) ZA9410236B (fr)

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US7793655B2 (en) 1996-04-19 2010-09-14 Boehringer Ingelheim Pharma Gmbh & Co. Kg Two-chamber cartridge for propellant-free metering aerosols

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Also Published As

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RU2114035C1 (ru) 1998-06-27
PL306442A1 (en) 1995-06-26
AU684564B2 (en) 1997-12-18
CN1113202A (zh) 1995-12-13
ZA9410236B (en) 1995-09-01
KR950017670A (ko) 1995-07-20
NZ270227A (en) 1995-12-21
US5803286A (en) 1998-09-08
IL111841A0 (en) 1995-03-15
SA95150463B1 (ar) 2006-03-06
EP0661218A1 (fr) 1995-07-05
MX9500182A (es) 1997-02-28
HUT70992A (en) 1995-11-28
ES2119132T3 (es) 1998-10-01
IL111841A (en) 1997-11-20
CO4370041A1 (es) 1996-10-07
JPH07206018A (ja) 1995-08-08
AU7913394A (en) 1995-06-29
BR9405175A (pt) 1995-08-01
KR100381092B1 (ko) 2003-10-22
DE59406560D1 (de) 1998-09-03
PL175697B1 (pl) 1999-01-29
CN1038024C (zh) 1998-04-15
HU9403710D0 (en) 1995-02-28
CA2137035C (fr) 2005-08-16
HU218165B (hu) 2000-06-28
CA2137035A1 (fr) 1995-06-24

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