EP0190577A2 - Emballage pour liquides avec bec verseur - Google Patents

Emballage pour liquides avec bec verseur Download PDF

Info

Publication number
EP0190577A2
EP0190577A2 EP86100551A EP86100551A EP0190577A2 EP 0190577 A2 EP0190577 A2 EP 0190577A2 EP 86100551 A EP86100551 A EP 86100551A EP 86100551 A EP86100551 A EP 86100551A EP 0190577 A2 EP0190577 A2 EP 0190577A2
Authority
EP
European Patent Office
Prior art keywords
edge
opening
pouring
plastic strip
top wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86100551A
Other languages
German (de)
English (en)
Other versions
EP0190577B1 (fr
EP0190577A3 (en
Inventor
Hans Dr. Rausing
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.)
Tetra Pak AB
Original Assignee
Tetra Pak AB
Tetra Pak International AB
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 Tetra Pak AB, Tetra Pak International AB filed Critical Tetra Pak AB
Publication of EP0190577A2 publication Critical patent/EP0190577A2/fr
Publication of EP0190577A3 publication Critical patent/EP0190577A3/de
Application granted granted Critical
Publication of EP0190577B1 publication Critical patent/EP0190577B1/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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/708—Separate tearable flexible elements covering a discharge opening of a container, e.g. adhesive tape
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1043—Subsequent to assembly
    • Y10T156/1044—Subsequent to assembly of parallel stacked sheets only
    • Y10T156/1046—Bending of one lamina only

Definitions

  • the invention relates to a package for liquids made of cardboard and the like, which is liquid-impermeable at least on one surface by plastic coating, with side walls, bottom and top wall, which are connected at least partially by folding and / or sealing seams, with one in the top wall close the tear line pouring opening, which is preferably covered with a tearable cover strip, and with a pouring edge lying in one plane with the top wall.
  • Liquid food packs such as Milk, fruit juices are known. These packs consist of cardboard thinly coated with plastic on both surfaces and form liquid-tight, stable packs that are currently widely used in retail.
  • the packs are equipped with opening devices which are also known per se in a wide variety of shapes and constructions.
  • a specially known pack for milk has mainly a parallelepiped shape and has, inter alia, the features mentioned at the beginning.
  • the pouring opening has an elongated or oval shape and is oriented in such a way that the major axis of the pouring opening runs at right angles to the edge line of the top wall of the pack.
  • a plastic cover strip is also provided, which is attached to the top wall of the pack in such a way that it covers both the pouring opening and an area surrounding this opening.
  • the cover strip is connected to the top wall in a liquid-tight manner in a zone lying around the pouring opening. An unsealed end of the cover strip can be removed from the Consumers are well handled and pulled up to open them. It is desirable to empty the contents in a uniform and fairly collected jet.
  • a disadvantage of many packs is that the filling jet tries to follow the outer surface of the pack when it is poured out, so that it splits and partially runs down one of the side walls. This is mainly due to the fact that the edge line created during the formation of the package by folding along a bending edge, over which the product runs, is slightly rounded and not so sharply defined that the product jet on the outer surface of the package can become detached.
  • the pouring opening is usually formed in the already coated cardboard web by punching out.
  • the edge of the pouring opening is therefore a cut line that exposes the uncoated paper edge.
  • this edge of the pouring opening becomes moist and absorbs liquid.
  • There the top wall in the area around the opening edge not only loses strength, but the appearance also suffers after only partially emptying the filling material, and good conditions can also be created for bacteria, so that health problems could arise. It would therefore be beneficial if this cutting edge could also be covered.
  • the object of the invention is therefore to provide a remplisstechnikspakkung of the type mentioned under saving of material, which has a simpler structure and not just a molded edge for a clear AusgieBstrahl but also a K at the edge of the punched pouring opening Toggle provides tenschutz. Further, a method for producing such a package with improved A to usg cordein- direction and a device for carrying out this method are provided.
  • the object is achieved according to the invention in that a separate plastic strip is sealed in the area of the pouring opening, covering it, protruding beyond the edge line of the top wall with an unsealed end to form a pouring edge, and in that the surface of the plastic strip covering the pouring opening is underneath Exposure of the opening punched out and folded around the opening edge and sealed at least from the bottom.
  • both a pouring edge and edge protection for the edge of the pouring opening are thus created by using a single separate plastic strip which is sealed onto the surface of the top wall from the outside. By sealing the plastic strip edge from the inside, an additional cover strip in the area of the inside of the pack is no longer necessary.
  • the Plastic strips are sealed to the top wall along a closed sealing seam surrounding the pouring opening at a distance.
  • the sealing of the plastic strip on the outside of the surface of the upper wall creates a captive pouring edge, which is not accidentally torn off even when the outer cover strip is removed.
  • the mentioned sealing seam as a narrow or narrow sealing zone around the pouring opening is sufficient for an adequate fastening of the plastic strip.
  • the plastic strip is formed from a thermoplastic film, the thickness of which is five to ten times the plastic coating of the cardboard material, preferably the thermoplastic film for the plastic strip has a thickness of 0.1 to 0.2 mm.
  • the plastic strip which covers the pouring opening on the upper wall up to the edge line, is made of a relatively rigid material, so that there is really a sharp pouring edge, with the result that the filling material can be poured out better.
  • Thermoplastics which are particularly suitable for the production of the plastic strip are preferably polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyester. With the individual mixtures, one can also make a desired temperature setting, i.e. set a particularly desired softening temperature.
  • the method for producing the opening device described above according to the invention characterized in that an opening of overlapping and to beyond the nearest edge line reaching plastic strip is sealed so to the area of the punched out of the top wall of the pouring opening such that its end is in the range of R andline remains sealing free, that the surface above the pouring opening is deep-drawn to a level below the top wall and a hole is punched out of the plastic strip at a distance from the opening edge, the closed edge of this hole is folded over in the plastic strip and sealed from the inside of the package next to the edge of the pouring opening.
  • the plastic strip is therefore softened after being placed on the area of the pouring opening or is deep-drawn in its still soft state.
  • This deep-drawing takes place in the pouring opening down to the inside of the pack down to a level below the top wall, so that the deep-drawn, approximately parallel surface of the deep-drawn plastic strip lies at a distance below the top wall inside the pack.
  • a sealing seam is created in a circular or oval shape around the pouring opening, which also forms a handle or fastening area for the plastic strip from the inside of the pack. This not only significantly improves the captivity of the plastic strip, but also provides edge protection for the edge of the pouring opening, because liquid can no longer be absorbed by this opening edge and penetrate into it.
  • the hole can be made from the plastic strip before or after being folded over and sealed onto the inside of the package.
  • Deep drawing can be carried out in a manner known per se by means of a vacuum or mandrel.
  • the plastic strip is applied during the creasing, punching and cutting of the cardboard web in that it is applied by a The supply roll is pulled off, pushed onto the area of the pouring opening, cut and sealed.
  • the supply roll is pulled off, pushed onto the area of the pouring opening, cut and sealed.
  • sealing is carried out by high-frequency welding.
  • Another alternative is hot air or electric heating of panels.
  • the plastic strips in a heated to such a temperature condition on the top wall of the package, that the plastic strip may be sealed and deep-drawn, then advantageously a separate supply of W less advan- me superfluous because the plastic strip already in is suitably tempered before sealing and deep drawing.
  • the size of the Kunststoffstrei- f ens towards the edge line, via which the filling material is poured in jet form advantageously then properly dimensioned in a preferred manner, when vertically in plan view of those on the package upper wall, the outer edge of the plastic strip about in the line including located fold line, which was called the front edge line of the top wall.
  • the cover strip which is placed on the outside over the plastic strip and folded over the edge line on the front side edge and fixed there, does not damage or kink the pouring edge. Rather, the relatively stiff plastic strip remains undeformed in the plane of the top wall even during transportation before opening.
  • the device for carrying out the method described above is characterized according to the invention in that the counter-jaw counteracting the pressure mandrel has a punching device. If you create a combination of counter jaws and punching device or pressure mandrel and punching device, you can use simplified tools and thus achieve a faster work cycle. For example, a machine equipped with the device according to the invention is capable of producing 6000 p accumulations per hour in the desired manner.
  • the device according to the invention has a counter jaw which is designed as a contact heating plate. This measure complements the other heating options for the plastic film already mentioned above, namely hot air or high-frequency welding.
  • the liquid pack is first shown in perspective from the outside. M an recognizes the top wall 1, the narrow side wall 2 pointing to the left towards the viewer and the wide side wall 3 pointing towards the right to the front of an approximately cuboid-shaped liquid pack.
  • This pack is formed from a tube, the sealing seam 4 serving to form the tube.
  • a triangular flap 5 is formed over an edge line 9, which according to the illustration in FIG. 1 is folded down onto the adjacent side wall 2 and attached there.
  • the pouring opening 6 which is covered by an outer cover strip 7 in a manner known per se (pull tab).
  • a separate plastic strip 10 is sealed in the area of the pouring opening 6 via the narrow sealing seam 13 shown in FIGS. 3 and 4 on the outside and the annular sealing surface 20 on the inside.
  • the plastic strip 10 covers the pouring opening 6, as can be seen particularly clearly from FIG. 3.
  • the plastic strip 10 projects forward by a very small amount (0.5 to 2 mm) beyond the edge line 9 of the top wall 1. Directly next to the pouring edge 8 thus formed, the end 11 of the plastic strip 10 is not sealed to the top wall 4.
  • edge line 9 in the sectional representations according to FIGS. 2, 3 and 5 to 9 is excessively round.
  • the representation of FIG. 7 comes closest to the actual bending shape of the outer edge line 9. In any case, it is not about sharply defined edges as shown in perspective in the schematic FIG. 1.
  • FIG. 2 shows the perspective, schematic sectional view of the packaging corner on the left according to FIG. 1, the triangular tab 5 and also the cover strip 7 not being shown.
  • the pouring opening 6 is punched into the top wall 1, and the free opening edge 12 is obtained without any coating, which is a cutting line. Without protection of this edge or edge 12, liquid could penetrate into the area of the annular surface 12 and cause the softening and impurities described.
  • the plastic strip 10 is provided, which, according to FIG. 3, is placed on the area of the pouring opening 6. It clearly covers the pouring opening 6 and extends at least to the closest edge line 9 (FIG. 1 left); but preferably projects beyond this by a small piece of approximately 1 mm. In the last area, i.e. The end 11 of the plastic strip 10 is seal-free via a 0.5 to 3 mm wide strip parallel to the pouring edge 8. In the embodiment of FIG. 3, the plastic strip 10 is fastened on the outside only via the sealing seam 13 to the top wall 1, so that more than the end 11 of the plastic strip 10 is seal-free. If, however, a larger sealing surface than only the seam 13 according to FIG. 3 is provided, as mentioned at the beginning, the end 11 in the region of the edge line 9 of the plastic strip 10 should always remain sealed with the top wall 1.
  • FIG. 4 shows the top view of the plastic strip 10 thus placed with the pouring edge 8.
  • the plastic strip 10 While the pouring opening 6 with the opening edge 12 already exists in the box, the plastic strip 10 is initially still without a hole. 5, the material of the plastic strip 10 lying above the pouring opening 6 is deep-drawn into the opening 6 with the pressure mandrel 17 and the counter jaw 16. Since - by arise annular surfaces 21, which can later be used for sealing from the inside.
  • FIG. 6 the next step is shown, in which the entire deep-drawn bottom part is pressed upwards with the aid of the pressure mandrel 17.
  • the final state achieved in this way can be seen in FIG. 6, the annular walls 21 now forming a type of flange (FIGS. 6, 7 and 9).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Making Paper Articles (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Packages (AREA)
EP86100551A 1985-02-05 1986-01-17 Emballage pour liquides avec bec verseur Expired - Lifetime EP0190577B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08502910A GB2170479B (en) 1985-02-05 1985-02-05 A pack for liquids
GB8502910 1985-02-05

Publications (3)

Publication Number Publication Date
EP0190577A2 true EP0190577A2 (fr) 1986-08-13
EP0190577A3 EP0190577A3 (en) 1987-10-28
EP0190577B1 EP0190577B1 (fr) 1990-09-26

Family

ID=10573984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100551A Expired - Lifetime EP0190577B1 (fr) 1985-02-05 1986-01-17 Emballage pour liquides avec bec verseur

Country Status (8)

Country Link
US (2) US4998668A (fr)
EP (1) EP0190577B1 (fr)
JP (1) JPH0788061B2 (fr)
AU (1) AU580381B2 (fr)
CA (1) CA1285251C (fr)
DE (1) DE3674423D1 (fr)
GB (1) GB2170479B (fr)
RU (1) RU1838199C (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676336A2 (fr) * 1994-04-07 1995-10-11 Rüdiger Haaga GmbH Procédé de recouvrement du bord coupant d'une ouverture de récipient au moyen d'un recouvrement de protection
WO2016025319A1 (fr) 2014-08-11 2016-02-18 Lubrizol Advanced Materials, Inc. Compositions polymères aqueuses pour l'impression, encres pour l'impression numérique par jet d'encre et impression sur textiles
WO2016025300A1 (fr) 2014-08-11 2016-02-18 Lubrizol Advanced Materials, Inc. Compositions aqueuses de revêtement de copolymère destinées à des applications de construction et industrielles
WO2016100201A1 (fr) 2014-12-18 2016-06-23 Lubrizol Advanced Materials, Inc. Éléments polyamide structuraux dispersibles dans l'eau
WO2016099726A1 (fr) 2014-12-18 2016-06-23 Lubrizol Advanced Materials, Inc. Polyamide à base aqueuse et leur extension de chaîne par des isocyanates pour former des dispersions de polyurées cationiques à base aqueuse
EP3205686A1 (fr) 2013-02-13 2017-08-16 Lubrizol Advanced Materials, Inc. Prepolymère téléchélique liquide

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325830A1 (de) * 1993-07-31 1995-02-02 Tetra Laval Holdings & Finance Fließmittelverpackung mit Ausgießvorrichtung, Verfahren zur Herstellung einer Fließmittelverpackung und Werkzeug zur Durchführung des Verfahrens
CH687252A5 (de) * 1994-06-10 1996-10-31 Tetra Laval Holdings & Finance Gebinde mit einsteckbarer Verschlusseinheit.
DE4441097A1 (de) * 1994-11-18 1996-05-23 Ruediger Haaga Gmbh Vorrichtung zum Herstellen und Anbringen eines Schutzbezuges bei einer Öffnung einer Wand für einen Behälter
US5704541A (en) 1996-04-25 1998-01-06 Tetra Laval Holdings & Finance S.A. Flat-top container with an opening fitment
IT1284596B1 (it) * 1996-09-27 1998-05-21 Luigi Goglio Contenitore di prodotti granulari in particolare caffe' e relativo supporto per lo svuotamento in una macina da bar
US6766941B1 (en) 1998-02-09 2004-07-27 Sig Combibloc, Inc. Tear-away container top
US6471122B1 (en) 1999-02-13 2002-10-29 Stone Container Corporation Paperboard can with an integrated paperboard lid having a slide closure
DE19915150A1 (de) * 1999-03-26 2000-10-12 Sig Combibloc Gmbh Verfahren zur Herstellung einer Verbundpackung und nach dem Verfahren hergestellte Verbundpackung
US6354062B1 (en) 1999-05-13 2002-03-12 Bevtek Inc. Method of manufacture of individual beverage carton with a straw therein
US6431434B1 (en) 1999-09-23 2002-08-13 Keith Louis Haughton Individual beverage carton with a straw therein and a method of manufacture
US6394339B1 (en) * 1999-12-29 2002-05-28 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Thermoformed closure for cartons
AU5788901A (en) 2000-01-03 2001-07-16 Acorn Bay, Llc Piercing drink spout system
US6629624B2 (en) 2001-03-05 2003-10-07 Acorn Bay, Llc Drink spout system
US6631823B2 (en) 2001-03-05 2003-10-14 Acorn Bay, Llc Drink spout system
WO2003047981A2 (fr) * 2001-12-06 2003-06-12 Gabriel Cabelli Recipients de distribution de fluide portatifs
US20040146618A1 (en) * 2003-01-24 2004-07-29 Stewart Noel G. Perforated air-tight seal membrane for a canister containing a particulate-type product
US20050051443A1 (en) * 2003-09-04 2005-03-10 Yao-Chang Lin Cigarette box having a lid that can be torn to form an opening for drawing out a cigarette stick
CN101341079A (zh) * 2005-12-21 2009-01-07 哥伦布E.有限公司 一次性饮料罐
JP6999913B1 (ja) * 2020-02-21 2022-01-19 トタニ技研工業株式会社 穴あけ装置、および、スパウト装着装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450856A (en) * 1966-12-28 1969-06-17 Continental Can Co Electrical heat treating system for sealing cartons or the like
US3900155A (en) * 1973-02-20 1975-08-19 Tetra Pak Dev Package
GB1466549A (en) * 1974-06-28 1977-03-09 Ziristor Ab Releasable sealing of packaging container outlets
DE2729185B2 (de) * 1976-07-08 1980-04-24 Tetra Pak International Ab, Lund (Schweden) Öffnungseinrichtung für Verpackungsbehälter

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US2347686A (en) * 1940-12-07 1944-05-02 American Can Co Container
US2721688A (en) * 1952-09-05 1955-10-25 Frank R Beymer Container with self-contained strainer
US2885084A (en) * 1957-09-03 1959-05-05 Rocca John Filter means for milk containers and the like
US3101879A (en) * 1961-01-26 1963-08-27 Jagenberg Werke Ag Container of paper, cardboard or like carton-forming material
CH557268A (de) * 1972-10-18 1974-12-31 Rausing Anders Ruben Einweg-verpackungsbehaelter.
SE398479B (sv) * 1975-05-02 1977-12-27 Ziristor Ab Oppningsanordning for forpackning
SE422672B (sv) * 1976-07-08 1982-03-22 Ziristor Ab Med oppningsanordning forsedd forpackningsbehallare
SE413480B (sv) * 1976-11-18 1980-06-02 Tetra Pak Int Sett och anordning for att anordna en tet oppningsanordning med goda hellegenskaper vid en forpackningsbehallare for flytande fyllgods
US4116359A (en) * 1977-10-21 1978-09-26 The Continental Group, Inc. Through hole deformation and inside sealing tear strip
AU524746B2 (en) * 1977-12-24 1982-09-30 Teika Pak Developpement Sa Pour lip
DE2758092C2 (de) * 1977-12-24 1983-07-21 Altstädter Verpackungs-Vertriebsgesellschaft mbH, 6102 Pfungstadt Öffnungsvorrichtung für eine Verpackung aus flexiblem Material
US4170314A (en) * 1978-10-11 1979-10-09 The Continental Group, Inc. Container closure
EP0018325A1 (fr) * 1979-04-19 1980-10-29 Alfred Rossier Berlingot bouchable en matière semi-rigide, procédé de fabrication et moyen de mise en oeuvre
DE3263987D1 (en) * 1981-03-02 1985-07-11 Toyo Seikan Kaisha Ltd Easily openable vessel closure and process for preparation thereof
JPS58136422A (ja) * 1982-02-08 1983-08-13 Toyo Seikan Kaisha Ltd 易開封性容器蓋の製法
GB2128135B (en) * 1982-10-05 1985-11-06 Tetra Pak Int Edge bonding of sheet material
DE3513976A1 (de) * 1985-04-18 1986-10-30 Tetra Pak International AB, Lund Fluessigkeitspackung sowie verfahren und vorrichtung zur herstellung derselben
GB2187712B (en) * 1986-03-11 1990-05-23 Tetra Pak Finance & Trading Fluid pack and process for the production therof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450856A (en) * 1966-12-28 1969-06-17 Continental Can Co Electrical heat treating system for sealing cartons or the like
US3900155A (en) * 1973-02-20 1975-08-19 Tetra Pak Dev Package
GB1466549A (en) * 1974-06-28 1977-03-09 Ziristor Ab Releasable sealing of packaging container outlets
DE2729185B2 (de) * 1976-07-08 1980-04-24 Tetra Pak International Ab, Lund (Schweden) Öffnungseinrichtung für Verpackungsbehälter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676336A2 (fr) * 1994-04-07 1995-10-11 Rüdiger Haaga GmbH Procédé de recouvrement du bord coupant d'une ouverture de récipient au moyen d'un recouvrement de protection
EP0676336A3 (fr) * 1994-04-07 1996-03-27 Ruediger Haaga Gmbh Procédé de recouvrement du bord coupant d'une ouverture de récipient au moyen d'un recouvrement de protection.
EP3205686A1 (fr) 2013-02-13 2017-08-16 Lubrizol Advanced Materials, Inc. Prepolymère téléchélique liquide
WO2016025319A1 (fr) 2014-08-11 2016-02-18 Lubrizol Advanced Materials, Inc. Compositions polymères aqueuses pour l'impression, encres pour l'impression numérique par jet d'encre et impression sur textiles
WO2016025300A1 (fr) 2014-08-11 2016-02-18 Lubrizol Advanced Materials, Inc. Compositions aqueuses de revêtement de copolymère destinées à des applications de construction et industrielles
WO2016100201A1 (fr) 2014-12-18 2016-06-23 Lubrizol Advanced Materials, Inc. Éléments polyamide structuraux dispersibles dans l'eau
WO2016099726A1 (fr) 2014-12-18 2016-06-23 Lubrizol Advanced Materials, Inc. Polyamide à base aqueuse et leur extension de chaîne par des isocyanates pour former des dispersions de polyurées cationiques à base aqueuse

Also Published As

Publication number Publication date
EP0190577B1 (fr) 1990-09-26
JPS61233529A (ja) 1986-10-17
GB2170479B (en) 1988-09-28
JPH0788061B2 (ja) 1995-09-27
GB8502910D0 (en) 1985-03-06
CA1285251C (fr) 1991-06-25
EP0190577A3 (en) 1987-10-28
DE3674423D1 (de) 1990-10-31
US4998668A (en) 1991-03-12
AU5283986A (en) 1986-08-14
AU580381B2 (en) 1989-01-12
RU1838199C (ru) 1993-08-30
US5158633A (en) 1992-10-27
GB2170479A (en) 1986-08-06

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