EP0239851A2 - Mousse de montage de polyuréthane et dispositif pour son procédé de fabrication - Google Patents

Mousse de montage de polyuréthane et dispositif pour son procédé de fabrication Download PDF

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Publication number
EP0239851A2
EP0239851A2 EP87103680A EP87103680A EP0239851A2 EP 0239851 A2 EP0239851 A2 EP 0239851A2 EP 87103680 A EP87103680 A EP 87103680A EP 87103680 A EP87103680 A EP 87103680A EP 0239851 A2 EP0239851 A2 EP 0239851A2
Authority
EP
European Patent Office
Prior art keywords
polyurethane
solution
container
reactant
foaming
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.)
Withdrawn
Application number
EP87103680A
Other languages
German (de)
English (en)
Other versions
EP0239851A3 (fr
Inventor
Mathias Pauls
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.)
Polypag AG
Original Assignee
Polypag AG
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 Polypag AG filed Critical Polypag AG
Publication of EP0239851A2 publication Critical patent/EP0239851A2/fr
Publication of EP0239851A3 publication Critical patent/EP0239851A3/fr
Withdrawn legal-status Critical Current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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/68—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
    • B65D83/682—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
    • B65D83/687—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head the products being totally mixed on, or prior to, first use, e.g. by breaking an ampoule containing one of the products
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/46—Tilt valves
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/40—Closure caps

Definitions

  • the invention relates to a product and a device for carrying out a method by which the product according to the invention is manufactured.
  • the product according to the invention is a polyurethane assembly foam.
  • assembly foams are used primarily for technical thermal insulation by foaming voids, but are also used, for example, in construction to avoid condensation.
  • the invention relates to polyurethane assembly foams which are obtained and processed on site by removing their components from pressure vessels, for example aerosol cans.
  • foams are softer than the so-called rigid polyurethane foams, but mostly harder than the so-called flexible polyurethane foams, which are used, inter alia, for upholstery material.
  • the polyurethane assembly foams according to the invention use liquid gas, for example fluorocarbon or hydrocarbon, as the blowing agent and water, preferably only the moisture in the air, but optionally also hydroxide compounds with hydroxyl groups, which accelerate the curing of the foam.
  • the assembly foams according to the invention therefore harden relatively quickly to form an initially sticky, but then hardened material.
  • the reaction mixture required for the production of the polyurethane assembly foam according to the invention can either consist of a prepolymer which contains free isocyanate groups and a polyol component by the so-called prepolymer process.
  • the invention can also be implemented with a uniform reaction mixture which essentially contains the polyol, an isocyanate and the blowing agent, a catalyst and an emulsifier and further auxiliaries, e.g. the hydroxide compounds mentioned can be used to accelerate curing and to improve the quality of the foam.
  • the device according to the invention is accordingly based on a pressure vessel of a known type (DE-OS 33 22 811).
  • the pressure vessel essentially consists of a pressure cell and an additional container which is accommodated in the pressure cell. It contains a reagent that accelerates foam curing. Because of its composition and its effect on the prepolymer contained in the pressure can, it is kept separate from the can until the foam is to be applied. Then with one in the bottom of the pressure can sealed movable plunger the lid of the additional container is blasted off into the can and the contents of the additional container are shaken into the can. The resulting mixture is applied immediately.
  • the materials formed from such previously known polyurethane assembly foams have physical and chemical properties which are known and can no longer be significantly developed or improved. This means that certain properties are missing, which are desired for different reasons in this type of assembly foam. This includes e.g. higher strength, improved climate resistance, improved chemical resistance and many other things.
  • the reaction resin and its reactant which in turn, result from a hardener and an accelerator, a material in which the hardened reactive resin is distributed in a fine structure.
  • this assembly foam has the properties of polyurethane and reactive resin. That is why it is harder, shows better fire behavior and absorbs less water. In addition, synergism also occurs. In particular, the assembly foam is easier to handle and gives a higher yield.
  • these properties of the product according to the invention can in part be explained by a framework structure which is formed in the polyurethane foam from the hardened reaction resin.
  • the structure of the scaffold can be determined within certain limits by adding and distributing the reaction resin and by the amount and type of the reagent in terms of its proportion in the total mass of the assembly foam and its distribution within it.
  • the curable technical resins used for the product according to the invention are also extended to substances which are either incompatible with the substances in the solution or, for other reasons, should be added to the reaction mixture shortly before the foam is applied.
  • the latter is among others the case when the hardening accelerator e.g. from a special pressure vessel with higher or lower pressure than the reference pressure under which the solution is to be mixed.
  • the pressure vessel shown in the figures consists of a frame in the form of a cylindrical tube, which is closed at one end with a dome (2).
  • the dome has a flanged edge (3) which holds the dome (2) on the relevant end of the frame (1) and at the same time brings about a tight connection of the parts.
  • the pressure vessel dome is made of a round blank, ie a round plate, a molded part cut out of sheet metal, which has been given the arched shape shown in the drawing by shaping.
  • the inner edge of the round blank is flanged as shown in (4) and accommodates a poppet valve (5).
  • the valve disc (6) is in turn crimped with its edge (7) around the edge (4) of the round blank and thereby sealed against it.
  • a rubber stopper (8) which in turn is supported with a flange-shaped widening (9) on the underside (10) of the valve plate (6) and is penetrated by a hollow valve rod (12).
  • This rod has an outer collar (13) which is supported on the outer edge (14) of the plug.
  • a disc seal (17) is clamped by the edge (18) of a cover (19) encompassing the flange (4) and ensures that no atmospheric moisture can penetrate from the outside.
  • the base (20) of the pressure cell corresponds to a concave dome (2) folded inwards, with enough material in its stabilizing folds to push outwards in the event of excessive pressure development, for example at temperatures above 50 degrees C, and thus to create an additional safety space by increasing the volume in the overall container .
  • the bottom corresponds in all parts to the cover (2), so that its description can be dispensed with in detail. Accordingly, it is held with a flanged edge (22) on the relevant end of the frame (1).
  • it is made from a round blank, the edge of which surrounds the recess provided in the middle, as shown in (23), is flanged.
  • a plate (24) is fastened on this edge by a flange (25).
  • the plate has an annular recess (26).
  • a sleeve (31) made of a sealing material has an inner collar (32) which sits on a shoulder (34) of an annular recess (26) in the plate.
  • the adjoining cylindrical section (33) of the sleeve (31) is held by the inner edge (35) of the recess (26).
  • the sleeve is axially blocked inwards. This is achieved by the positive connection, which is produced at (36) between the inner edge of the recess (26) and an enlarged inner section of the sleeve (31).
  • a rod designed as a tappet (37) sits concentrically in the sleeve (31). It has an inner collar (38) with which it is supported on the inner edge (39) of the sleeve (31). It also has an outer collar (39 ⁇ ), which can accordingly be supported on the outer edge (40) of the sleeve (31).
  • the plunger end (41) projecting outwards is covered with a cap (42) in the manner of the cap (19).
  • the plunger (37) forms a structural unit with a plate (28) which has parallel longitudinal edges (29, 30) and a transverse edge (32) which is bevelled in relation to the transverse edge (31) on the plunger side.
  • the pressure container (21) contains an inner container (43, 44) each with protruding edges (43, 44) are fixed in the flanging (22) of the outer pressure container (21).
  • the two pressure vessels (43, 44) have a common cover (47) which, with the shape of the two pressure vessels (43, 44), has projections (48, 49) in the frames (50, 51) of the pressure vessels (43, 44 ) is used.
  • O-ring seals (52, 53) seal the bottom (47) with the frame ends, which are positively fixed in the bottom (47).
  • each pressure vessel follows the arc of the frame tube (16) of the outer pressure vessel (21) assigned to it, up to the arcuate guides (54, 55) used for the longitudinal edges of the plate (28).
  • the arcuate guides which are denoted by (56 and 57) in FIG. 3, extend flat sections (58, 59) with which the frame shape is completed.
  • the plate (28) lies between the flat sections (58 and 59).
  • the two inner containers (43, 44) are used for separate accommodation of a reaction mixture on the one hand, which contains a reaction resin in addition to the components of a polyurethane mounting foam and a reactant which has a hardener and an accelerator, which are chemically uninhibited in the illustrated embodiment are inert with the reaction mixture of the polyurethane assembly foam or the reaction resin.
  • the user first removes the cap (42) on the spot. This is relatively simple, because all he has to do is pull the tongue (50), which forms a structural unit with the cap (42), as a result of which the edge is deformed and pulled off from the flanging (23).
  • the tongue (51) of the cap (19) has been actuated in a corresponding manner, the user pushes the pressure vessel (21) with the end (41) of the plunger (37) onto a solid base. This triggers an axial movement of the plunger (37) which, due to the support of the outer collar (39) on the outer edge (40) of the sleeve (31), leads to its resilient yielding.
  • the sloping edge (32) of the plate (28) forming a structural unit with the plunger is pushed onto the floor (47).
  • the contents of these two containers (43, 44) released into the interior of the pressure container (21) are mixed by shaking.
  • the contents of the container can then be discharged by tilting the valve (12).
  • the plate (15) rises from the collar (9), which opens the opening (16) and the container contents flow out of the pressure container through the valve tube.
  • the valve tube can be a connection Pick up hose that leads to a spray gun. These parts are not shown.
  • the assembly foam is applied from the spray gun.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP87103680A 1986-03-27 1987-03-13 Mousse de montage de polyuréthane et dispositif pour son procédé de fabrication Withdrawn EP0239851A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3610345 1986-03-27
DE3610345A DE3610345C2 (de) 1986-03-27 1986-03-27 Vorrichtung zur Erzeugung von Polyurethan-Montageschaum

Publications (2)

Publication Number Publication Date
EP0239851A2 true EP0239851A2 (fr) 1987-10-07
EP0239851A3 EP0239851A3 (fr) 1988-11-09

Family

ID=6297385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103680A Withdrawn EP0239851A3 (fr) 1986-03-27 1987-03-13 Mousse de montage de polyuréthane et dispositif pour son procédé de fabrication

Country Status (4)

Country Link
US (1) US4769395A (fr)
EP (1) EP0239851A3 (fr)
JP (1) JPH082984B2 (fr)
DE (1) DE3610345C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0899212A1 (fr) 1997-08-26 1999-03-03 L'oreal Dispositif pour le conditionnement séparé de deux composants, leur mélange et la distribution extemporanée de celui-ci sous pression d'un gaz propulseur

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5876134A (en) * 1992-02-14 1999-03-02 The Gillette Company Foam grip
DE19811029C2 (de) 1998-03-13 2000-02-24 Roland Man Druckmasch Regelung der Geschwindigkeiten bei einem Verfahren und Vorrichtung zur Herstellung eines Thermotransferdrucks mittels bandförmiger Transferfolien
DE19831285A1 (de) * 1998-07-13 2000-01-20 Rathor Ag Appenzell Prepolymerabmischung mit Silan-terminierten Prepolymeren
EP1353854A2 (fr) * 2000-05-15 2003-10-22 Glaxo Group Limited Couvercle d'inhalateur-doseur contenant un deshydratant
GB0015043D0 (en) * 2000-06-21 2000-08-09 Glaxo Group Ltd Medicament dispenser
ATE264796T1 (de) * 2000-09-15 2004-05-15 Rouven Morck Druckdose mit innenhülse
DE10114624B4 (de) * 2001-03-23 2006-05-04 Peter Kwasny Gmbh Druckdose und ihre Verwendung für 2-Komponentensysteme
DE10144133A1 (de) * 2001-09-07 2003-03-27 Peter Kwasny Gmbh Zweikomponenten-Epoxid-Lacksprühdose
DE10148578A1 (de) * 2001-10-01 2003-06-12 Begemann Gmbh E Schäumbares Verfüllmaterial, Vorrichtung zur Applizierung dieses Materials sowie dazu geeignetes Verfahren
DE10260117A1 (de) * 2002-12-19 2004-07-01 Peter Kwasny Gmbh Druckdose zum Mischen und Ausbringen zweikomponentiger Werkstoffe
DE102004024777A1 (de) * 2004-05-17 2005-12-15 Fazekas, Gàbor Druckdose mit Innenhülse
US9701120B2 (en) 2007-08-20 2017-07-11 R.R. Donnelley & Sons Company Compositions compatible with jet printing and methods therefor
WO2019102024A1 (fr) * 2017-11-27 2019-05-31 Sika Technology Ag Bombe aérosol à deux composants
MY193870A (en) * 2018-05-31 2022-10-29 Boon Leong Saw A container for aerosol system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1694696B1 (de) * 1966-07-29 1970-06-18 Noel Marquet & Co Verfahren zur Herstellung von Polyurethanschaumstoffen
WO1985000157A1 (fr) * 1983-06-24 1985-01-17 Polypag Ag Recipient, en particulier boite sous pression pour distribuer des substances a un ou plusieurs composants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1694696B1 (de) * 1966-07-29 1970-06-18 Noel Marquet & Co Verfahren zur Herstellung von Polyurethanschaumstoffen
WO1985000157A1 (fr) * 1983-06-24 1985-01-17 Polypag Ag Recipient, en particulier boite sous pression pour distribuer des substances a un ou plusieurs composants

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0899212A1 (fr) 1997-08-26 1999-03-03 L'oreal Dispositif pour le conditionnement séparé de deux composants, leur mélange et la distribution extemporanée de celui-ci sous pression d'un gaz propulseur
FR2767796A1 (fr) * 1997-08-26 1999-03-05 Oreal Dispositif pour le conditionnement separe de deux composants, leur melange et la distribution extemporanee de celui-ci sous pression d'un gaz propulseur

Also Published As

Publication number Publication date
EP0239851A3 (fr) 1988-11-09
JPH082984B2 (ja) 1996-01-17
DE3610345C2 (de) 1998-07-09
JPS63125534A (ja) 1988-05-28
DE3610345A1 (de) 1987-12-23
US4769395A (en) 1988-09-06

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