EP0745046A1 - Verfahren zur selbstdichtenden versiegelung von behältern - Google Patents
Verfahren zur selbstdichtenden versiegelung von behälternInfo
- Publication number
- EP0745046A1 EP0745046A1 EP95908907A EP95908907A EP0745046A1 EP 0745046 A1 EP0745046 A1 EP 0745046A1 EP 95908907 A EP95908907 A EP 95908907A EP 95908907 A EP95908907 A EP 95908907A EP 0745046 A1 EP0745046 A1 EP 0745046A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- plastic
- container
- mass
- plastic disc
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 37
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 239000002985 plastic film Substances 0.000 claims abstract description 11
- 229920006255 plastic film Polymers 0.000 claims abstract description 11
- 239000004831 Hot glue Substances 0.000 claims description 33
- 239000002131 composite material Substances 0.000 claims description 20
- -1 polypropylene Polymers 0.000 claims description 15
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 239000002808 molecular sieve Substances 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920006267 polyester film Polymers 0.000 claims description 2
- 229930040373 Paraformaldehyde Natural products 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 claims 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- 239000004926 polymethyl methacrylate Substances 0.000 claims 1
- 229920006324 polyoxymethylene Polymers 0.000 claims 1
- 229920002223 polystyrene Polymers 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 claims 1
- 239000004800 polyvinyl chloride Substances 0.000 claims 1
- 239000012768 molten material Substances 0.000 abstract 4
- 239000010408 film Substances 0.000 description 38
- 239000012943 hotmelt Substances 0.000 description 24
- 229920002635 polyurethane Polymers 0.000 description 13
- 239000004814 polyurethane Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000013039 cover film Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000181 anti-adherent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000000289 melt material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000012939 laminating adhesive Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
-
- 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
- B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
- B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/245—Internal membrane, floating cover or the like isolating the contents from the ambient atmosphere
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0006—Upper closure
- B65D2251/0018—Upper closure of the 43-type
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0068—Lower closure
- B65D2251/0081—Lower closure of the 43-type
Definitions
- the invention relates to a method for the self-sealing sealing of hobbocks and drums, which can be used advantageously for meltable masses, in particular for moisture-reactive polyurethane hotmelts.
- Moisture-reactive polyurethane hotmelts are designed so that they already react with traces of moisture and result in cross-linked, no longer meltable polymers.
- very high requirements must be placed on the exclusion of moisture, as illustrated below.
- EP-A-102804 describes a cylindrical container in the bottom area is heated and has a removal opening in the bottom area and has a movable piston head at the top as the end.When the hot-melt adhesive is removed, the bottom area is heated so that only in this area is the hot melt melted.
- the pressure stamp of a barrel press presses on the movable piston head of the container, so that the entire unmelted block of hot melt adhesive is pressed down and so the melted part of the Presses hot melt adhesive through the removal opening to the application part for the hot melt adhesive connected to the removal opening.
- EP-B-354650 therefore proposes to line the adhesive container from a heat-resistant film before filling it with an inner bag, so that the hotmelt adhesive cannot adhere to the wall of the container.
- inner bags also called “inliners”
- inliners consist of moisture-proof aluminum composite film and are sealed after filling, there is even additional moisture protection for the hot-melt adhesive.
- these inliners have several disadvantages, so that they have so far hardly been successful on the market.
- the main disadvantages of these inliners are: - High costs of inliners, standard inliners with polyethylene as the inner layer have only a limited temperature resistance of about 80 ° C.
- polyurethane hotmelts are sometimes filled at considerably higher temperatures, so that expensive heat-resistant special films have to be used for the production of the inliners.
- the object was achieved in that the surface of the meltable mass is covered with an insert consisting of a plastic film and a plastic disk after filling into the container to be sealed.
- the diameter of the plastic film used for covering is larger than the inside diameter of the container to be sealed.
- the diameter of the plastic disc is slightly smaller than the inner diameter of the container.
- the containers, hobbocks or barrels used for the meltable masses have a circular cross section, so that the cover film and the plastic disc are also cut in a circle.
- the film blank is placed concentrically on the plastic pane and the protruding part of the film is bent around the outer circumference of the plastic pane.
- the plastic disc covered with the film is inserted into the container and pressed lightly onto the material to be melted, so that the product rises about 2 to 4 mm in the edge region, the side covered with the film the disc faces the melting material.
- the plastic disc has two important functions: on the one hand, as a centering aid, it facilitates the precise positioning of the cover film on the melting material, especially in the edge area. Surprisingly, an additional effect was found which enables the above-described disadvantage of a surface covering according to the prior art to be overcome. This effect is therefore to be regarded as the main function of the plastic pane.
- the plastic disk is made of a thermoplastic material with a high specific thermal expansion, this expands as soon as the heat of the melting material flows into the disk. This results in a radial pressure over a period of several hours in which the hot melt cools, which presses the part of the cover film which is vertically upward against the container wall.
- the hot-melt adhesive that has risen in this edge area now creates an internal and tightly sealing bond " between the film edge and the inside of the container wall.
- the plastic pane expands upwards in the manner of a vault in the middle. This pressing of the cover film over the entire cooling phase ensures that that the film also adheres firmly in the edge area and can bridge a gap between the container wall and the melting material mass, so that the entire melting material is sealed moisture-tight.
- the film material must have a high water vapor barrier effect, and it must also be thermally stable so that it is not damaged by the high temperatures of the melting material being cooled. As a rule, therefore, only multi-layer composite films are suitable for this. Although two-layer composite films can also be used, films with a structure of at least three layers have proven to be particularly suitable.
- the side of the composite film facing the melt material should have anti-adhesive properties as much as possible, so that the composite film can be easily removed from the solidified melt material by the end user prior to application.
- This inner layer, which faces the solidified hot melt adhesive therefore preferably consists of polyethylene, polytetrafluoroethylene (PTFE) or in particular polypropylene.
- the middle layer of the three-layer composite film consists of an aluminum film as a water vapor barrier.
- the outside of the composite film should give the overall composite a sufficiently high mechanical strength, which is why polyamide films or, in particular, polyester films are preferred for this side.
- the composite films which are suitable according to the invention must be laminated in such a way that the film composite permits the high temperature load during the cooling phase of the hotmelt adhesive, and the films are therefore preferably laminated with a laminating adhesive such as Liofol (RTM, Henkel).
- the linear thermal expansion of the plastic disc is intended to bring about radial pressure on the protruding edge region of the cover film against the inner wall of the container.
- thermoplastics with a linear expansion coefficient of at least 6 ⁇ 10 ⁇ / K measured at room temperature are suitable. This linear expansion coefficient should preferably be even higher at higher temperatures.
- This is particularly the case with branched polyethylene or also with Polypropylene ensures that polyethylene and especially polypropylene are suitable as a material for the plastic pane.
- the outer dimensions of the plastic pane depend on the container to be sealed.
- the thickness of the plastic disk is not critical as long as sufficient mechanical stability is guaranteed.
- the thickness of the disc can be between 0.1 and 5 mm, but preferably the disc has a thickness of 1 to 3 mm.
- the plastic disc has an inner circular cutout which facilitates the handling of the insert when inserting after the filling process and when removing before the hot melt adhesive is removed.
- the dimensions of the plastic film and the plastic disc depend on the container to be sealed.
- a circularly cut three-layer composite film with a diameter of 310 mm is used as the plastic film.
- a polypropylene disc with a diameter of 275 mm and a thickness of 2 mm is used as the plastic disc, the polypropylene disc having an inner circular cutout of approximately 125 mm.
- the hot melt can be filled and sealed with the one described above Insert consisting of foil and plastic disc a bag with molecular sieve can be placed on the insert.
- the molecular sieve extracts the residual moisture contained in the gas space between the insert and the container lid.
- a simple function test of the molecular sieve allows the processor to check whether the container was tight by moistening the sachet with the molecular sieve before application. If the molecular sieve heats up strongly during this moistening, it still had large adsorption capacities for water at this point in time, so that this is a sure sign of sufficient tightness of the container.
- the processor opens the hobbock, removes the plastic disc and can pull the sealing film off the solidified hot-melt adhesive without great effort. Since the plastic disc is not soiled, it can be reused for the same purpose.
- the hot melt adhesive can now be removed with any conventional barrel press with a heated follower plate.
- the container can be completely emptied except for very small residual quantities, so that the recycling or disposal of the container is generally not a problem.
- This can be made even easier if the container base is also covered with a suitable composite film blank before it is filled with the polyurethane hot-melt adhesive. After the hot melt has been discharged, the small amount of hot melt adhesive remaining in the base area can be removed effortlessly after cooling, so that the container in the base area is bare metal and is accordingly easy to reuse or dispose of.
- the preferred embodiment of the insert to be used for the method according to the invention for sealing containers is to be explained in more detail below with reference to the descriptions for FIGS. 1 and 2.
- FIG. 1 shows a semi-perspective view of the insert consisting of the composite film 1 with the partial area 4 bent over the plastic film in the edge area and the plastic disk 2 with its central circular cutout 3.
- Figure 2 shows the container filled with the hot melt adhesive and sealed.
- the composite film 1 lies with the anti-adhesive side to the hot melt adhesive 6.
- the plastic disc 2 lies on the composite film 1 and, during the cooling phase, presses the upwardly bent edge region 4 of the composite film 1 firmly against the container wall 5 of the container.
- the small amount of hotmelt adhesive which is located between the upwardly bent edge region 4 of the composite film and the inside of the container wall 5 is not shown in FIG.
- the additional composite film blank 7 placed in the bottom area, as well as the sachet 8 filled with molecular sieve and the lid 9 closing the container.
- the above-described embodiments for sealing containers which contain meltable masses represent the preferred embodiments of the invention, but any person skilled in the art will recognize that the invention can also be used advantageously in other embodiments.
- the plastic disc can be removed from the film with the container lid before the container is finally sealed, since the film, due to its reliable edge bonding / sealing, provides adequate protection against the ingress of moisture during storage of the container even without the plastic disc guaranteed.
- the plastic disc remains with the adhesive manufacturer / filler and can be returned directly to the filling process.
- the sealing method according to the invention is not limited to use with reactive hotmelt adhesives, and other meltable compositions which must be protected against moisture, air access or even contamination can also be sealed in containers in this way if they are only sufficient at high temperatures.
- the surface temperature of the mass to be sealed should be at least 50 ° C, preferably 80 ° C, so that the plastic pane, due to its thermal expansion, creates a sufficiently large contact pressure on the film in the edge area.
- the edge region of the film which is to be sealed / glued to the inner wall of the container can preferably be coated with a heat-sealable coating, for example a hot-melt adhesive. In this way, reliable sealing / gluing in the edge area is ensured even with these materials.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Packages (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Closing Of Containers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyesters Or Polycarbonates (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4404631 | 1994-02-14 | ||
DE4404631A DE4404631A1 (de) | 1994-02-14 | 1994-02-14 | Verfahren zur selbstdichtenden Versiegelung von Behältern |
PCT/EP1995/000415 WO1995021767A1 (de) | 1994-02-14 | 1995-02-06 | Verfahren zur selbstdichtenden versiegelung von behältern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0745046A1 true EP0745046A1 (de) | 1996-12-04 |
EP0745046B1 EP0745046B1 (de) | 1999-06-02 |
Family
ID=6510196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95908907A Expired - Lifetime EP0745046B1 (de) | 1994-02-14 | 1995-02-06 | Verfahren zur selbstdichtenden versiegelung von behältern |
Country Status (8)
Country | Link |
---|---|
US (1) | US5802815A (de) |
EP (1) | EP0745046B1 (de) |
AT (1) | ATE180727T1 (de) |
CA (1) | CA2183369A1 (de) |
DE (2) | DE4404631A1 (de) |
DK (1) | DK0745046T3 (de) |
ES (1) | ES2134440T3 (de) |
WO (1) | WO1995021767A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107901248A (zh) * | 2017-11-09 | 2018-04-13 | 中南大学 | 一种孔槽岩石试样加工装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19952089C1 (de) * | 1999-10-29 | 2001-04-05 | Henkel Kgaa | Verwendung von thermoplastischen Polymerzusammensetzungen als Trockenmittel |
FR2875794B1 (fr) * | 2004-09-30 | 2008-02-29 | Bernard Bougon | Dispositif de fermeture etanche pour conteneur |
US10029836B2 (en) * | 2015-07-31 | 2018-07-24 | Purina Animal Nutrition Llc | Animal feed covers and systems and methods for their production and use |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3545643A (en) * | 1967-10-18 | 1970-12-08 | Exxon Research Engineering Co | Package for highly viscous tacky materials |
US3648882A (en) * | 1970-03-02 | 1972-03-14 | Exxon Research Engineering Co | Package for highly viscous tacky materials |
US4077178A (en) * | 1975-04-18 | 1978-03-07 | The Nelson Company | Easily perforatable container to facilitate dispensing of contents |
ZA836215B (en) * | 1982-08-27 | 1984-07-25 | Bostik Ltd | Package and dispenser |
FR2610593B1 (fr) * | 1987-02-05 | 1989-09-15 | Eberle Jean Marie | Procede de fabrication et de mise en place simultanee d'un fond ou d'un couvercle sur le corps d'un emballage tubulaire en materiaux composites, emballage ainsi obtenu et moyens pour la mise en oeuvre de ce procede |
US4807746A (en) * | 1987-07-31 | 1989-02-28 | Jacobs William A | Pre-mixed thermoplastic units and method of using same |
US5042228A (en) * | 1988-07-08 | 1991-08-27 | Minnesota Mining And Manufacturing Company | Method and combination for heating and dispensing hot melt materials |
GB8819233D0 (en) * | 1988-08-12 | 1988-09-14 | Bostik Ltd | Container of solid composition for use as hot-melt |
US4867312A (en) * | 1988-10-17 | 1989-09-19 | Norton Company | Container sealing means for air and moisture sensitive materials |
RU2096277C1 (ru) * | 1990-08-01 | 1997-11-20 | Х.Б.Фуллер Лайсенсинг энд Файнэнсинг Инк. | Способ упаковки клеящей композиции (варианты) и упакованная клеящая композиция (варианты) |
US5373682A (en) * | 1992-05-18 | 1994-12-20 | National Starch And Chemical Investment Holding Corporation | Method for tackless packaging of hot melt adhesives |
US5333439A (en) * | 1992-09-22 | 1994-08-02 | Croda Apex Adhesives, Inc. | Hot-melt pressure sensitive adhesive packaging, preform, and method |
-
1994
- 1994-02-14 DE DE4404631A patent/DE4404631A1/de not_active Withdrawn
-
1995
- 1995-02-06 CA CA002183369A patent/CA2183369A1/en not_active Abandoned
- 1995-02-06 WO PCT/EP1995/000415 patent/WO1995021767A1/de active IP Right Grant
- 1995-02-06 ES ES95908907T patent/ES2134440T3/es not_active Expired - Lifetime
- 1995-02-06 EP EP95908907A patent/EP0745046B1/de not_active Expired - Lifetime
- 1995-02-06 DE DE59506104T patent/DE59506104D1/de not_active Expired - Fee Related
- 1995-02-06 US US08/693,306 patent/US5802815A/en not_active Expired - Fee Related
- 1995-02-06 AT AT95908907T patent/ATE180727T1/de not_active IP Right Cessation
- 1995-02-06 DK DK95908907T patent/DK0745046T3/da active
Non-Patent Citations (1)
Title |
---|
See references of WO9521767A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107901248A (zh) * | 2017-11-09 | 2018-04-13 | 中南大学 | 一种孔槽岩石试样加工装置 |
Also Published As
Publication number | Publication date |
---|---|
CA2183369A1 (en) | 1995-08-17 |
EP0745046B1 (de) | 1999-06-02 |
ES2134440T3 (es) | 1999-10-01 |
DE4404631A1 (de) | 1995-08-24 |
US5802815A (en) | 1998-09-08 |
WO1995021767A1 (de) | 1995-08-17 |
DE59506104D1 (de) | 1999-07-08 |
DK0745046T3 (da) | 1999-11-29 |
ATE180727T1 (de) | 1999-06-15 |
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