EP0699586A1 - A production technique for blocks of hot melt adhesives - Google Patents

A production technique for blocks of hot melt adhesives Download PDF

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Publication number
EP0699586A1
EP0699586A1 EP95110096A EP95110096A EP0699586A1 EP 0699586 A1 EP0699586 A1 EP 0699586A1 EP 95110096 A EP95110096 A EP 95110096A EP 95110096 A EP95110096 A EP 95110096A EP 0699586 A1 EP0699586 A1 EP 0699586A1
Authority
EP
European Patent Office
Prior art keywords
film
adhesive
hot melt
molten
water soluble
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Withdrawn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
EP95110096A
Other languages
German (de)
English (en)
French (fr)
Inventor
Anthony P. Rodgers
Paul D. Doody
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.)
National Starch and Chemical Investment Holding Corp
Original Assignee
National Starch and Chemical Investment Holding Corp
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 National Starch and Chemical Investment Holding Corp filed Critical National Starch and Chemical Investment Holding Corp
Publication of EP0699586A1 publication Critical patent/EP0699586A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials

Definitions

  • This invention relates to a method for packaging hot melt adhesives compositions and to the resulting packaged adhesive compositions.
  • Hot melt adhesives which are generally applied while in the molten or liquid state are solid at room temperature.
  • these adhesives are provided in the form of blocks; however, because of the nature of these materials there are problems associated with handling and packaging them.
  • the solid adhesive blocks not only stick or adhere to hands or mechanical handling devices and to each other, but they also pick up dirt and other contaminants. Additionally, certain applications require high tack formulations which result in blocks that will deform or cold flow unless supported during shipment. The need and advantages for providing tackless or non-blocking hot melt adhesives are apparent and various ways of accomplishing this have been developed.
  • Japanese Patent 48-103635 published December 26, 1973 discloses a granular adhesive which is tacky at room temperature and coated or enveloped with a non-tacky hot meltable material that is the same type or is miscible or mixable with it.
  • French Patent 2,544,654 published October 26, 1984 discloses forming a tackless hot melt by adding molten hot melt to a mold containing a preformed support layer having a transfer film thereon which is compatible with the hot melt.
  • French Patent 2,601,616 published October 22, 1988 discloses forming blocks of hot melt pressure sensitive adhesives by casting the pressure sensitive adhesive into molds precoated by spraying with a film of non self-sticking hot melt material thereby forming a fusible non-tacky veil around the pressure sensitive block.
  • German Patent 22 48 046 the hot melt adhesive is squeeze-cut into pillow-shaped pieces; the pieces subsequently cooled and solidified.
  • German patents DE 31 38 222 and 32 34 065 disclose coating the circumference of elongated hot melt portions with a thin polyolefin film.
  • German patent 36 25 358 to Hausdorf teaches wrapping the solid hot melt block in a thermoplastic, especially copolyamide film with a melting point of 120°C to 150°C, while EP application 0 469 564 and WO 94/01330, both to Rouyer et al. discloses wrapping the solidified hot melt in a plastic or biodegradeable polymeric packaging material.
  • U.S. Patent 5,401,455 issued March 28, 1995, discloses the finding that when the hot melt adhesive is poured in its molten state into a mold or cavity lined with plastic packaging film and then allowed to solidify, the adhesive is fused to some extent into the film, resulting in a non-blocking adhesive package which will melt faster in the melt pot and will not cause a substantial build-up of undesirable plastic residue even after extended periods of time.
  • the melting point of the plastic film should be comparable to, and preferably lower than, the melting point of the hot melt adhesive in order to provide for satisfactory melting in the melt pot which does not have a source of agitation, it is necessary that the lined mold be in direct contact with a heat sink so as to remove excess heat from the film as quickly as possible and thereby prevent melting, burning or charring of the plastic film wrap.
  • the method of the present invention is adaptable to the packaging of virtually any type of hot melt adhesive composition.
  • the method disclosed herein may be used to package hot melt adhesives prepared from polymers and copolymers of synthetic resins, rubbers, polyethylene, polypropylene, polyurethane, acrylics, vinyl acetate, ethylene vinyl acetate and polyvinyl alcohol. More specific examples include hot melt adhesives prepared from the following:
  • Such adhesives are formulated with tackifying resins in order to improve adhesion and introduce tack into the adhesive.
  • resin include, among other materials, (a) natural and modified resins, (b) polyterpene resins, (c) phenolic modified hydrocarbon resins, (d) coumarone-indene resins, (e) aliphatic and aromatic petroleum hydrocarbon resins, (f) phthalate esters and (g) hydrogenated hydrocarbons, hydrogenated rosins and hydrogenated rosin esters.
  • Desirable optional ingredients include diluents, e.g., liquid polybutene or polypropylene, petroleum waxes such as paraffin and microcrystalline waxes, polyethylene greases, hydrogenated animal, fish and vegetable fats, mineral oil and synthetic waxes as well as hydrocarbon oils such as naphthionic or paraffinic mineral oils.
  • diluents e.g., liquid polybutene or polypropylene, petroleum waxes such as paraffin and microcrystalline waxes, polyethylene greases, hydrogenated animal, fish and vegetable fats, mineral oil and synthetic waxes as well as hydrocarbon oils such as naphthionic or paraffinic mineral oils.
  • additives may include stabilizers, antioxidants, colorants and fillers.
  • the selection of components and amounts as well as the preparation thereof are well known in the art and described in the literature.
  • the heat sealable water soluble film into which the molten adhesive is poured may be any film which will maintain its integrity during filling but will subsequently dissolve in water. Suitable materials include polyvinyl alcohol, modified starches, cellulose films and the like. Polyvinyl alcohol films are the most preferred. Rather than using the water soluble material as the entire film substrate, in accordance with an alternative embodiment of the invention, it is possible that the film include a non-water soluble portion with the water soluble portion serving only as the vehicle to effect dissolution and separation of the film from the adhesive mass during the water cooling. In the case of films which comprise more than one material, it is only necessary that the portion of the film which will provide the longitudinal lapped seal around the adhesive mass during the filling operation be heat sealable.
  • pressure sensitive adhesives may also be desirable in the case of pressure sensitive adhesives to use a composite water soluble film laminated to a non-soluble coating, the latter remaining on the adhesive mass and providing a compatible tackless coating after dissolution of the water soluble film.
  • pressure sensitive masses may be so packaged by using a lamination of an ethylene vinyl acetate coating on the polyvinyl alcohol film.
  • the thickness of the film utilized generally varies between about 0.1 mil to 5 mil, preferably 0.5 mil to 4 mil.
  • the thickness of the particular film also varies depending upon the temperature at which the molten adhesive is pumped or poured into the plastic film cylinder.
  • the particular viscosity at which the adhesive can be introduced into the plastic film cylinder will vary depending on a variety of factors including the pumping capacity of the pump, the strength of then plastic film and the like. Viscosities in the range of 1,000 to 200,000 cps, preferably 2,000 to 100,000 may be utilized. However, we have found that the most preferred viscosity of the adhesive which is to be packaged in accordance with the invention is between 10,000 and 50,000 cps.
  • the heat sink may comprise any means which will effectively and rapidly remove or absorb the excess heat from the entire surface of the film which is in contact with the molten hot melt adhesive composition so as to prevent the temperature of the film from exceeding its melting point even though the molten hot melt adhesive temperature is higher than the film melting temperature.
  • Suitable heat sinks are provided by spraying the surface of the cylindrical plastic tube with cooled water or other refrigerant means such as chilled glycol, liquid or gaseous nitrogen, compressed carbon dioxide or the like.
  • the spraying may be accomplished, for example, using a series of spray nozzles aimed at the mandrel or a water or cooling ring or series of rings may be positioned around the mandrel so as to provide a curtain or cascade of water or refrigerant around the entire circumference of the cylinder.
  • the molten adhesive is generally poured or pumped into the film cylinder at a temperature at which the molten adhesive exhibits a viscosity of 1,000 to 200,000, preferably 10,000 to 50,000 cps. This temperature will generally vary from about 110° to about 150°C depending upon the particular adhesive. Since the adhesive is pumped or poured continuously through the mandrel into the film cylinder, it is possible to void and then cut the continuous filled tube into individual cartridges at virtually any desired length. In general, the individual cartridges are produced in a variety of sizes ranging from about three inches to 18 inches in length and varying in weight, depending upon length, from about 0.5 to five pounds.
  • the adhesive cartridges After filling, the adhesive cartridges, either individually or in a connected series, are further cooled in a water bath to ambient temperature so as to dissolve the film and solidify the adhesive.
  • the film may begin to separate from the adhesive and dissolve within about fifteen minutes after being placed in the water bath in which case any residual film remaining after cooling can be removed by placing the adhesive cartridge in water of about 60°C prior to bulk packaging.
  • Some films may not be soluble in the cold water bath and, in such cases, when removal of the plastic film is desired, the solidified packages are submerged in room temperature of slightly heated water until dissolution of the film occurs. In either case, any residual amounts of film which remain may be readily removed by passing the packages through a series of rotating brushes or using other scrubbing mechanisms.
  • the remaining film may be readily removed from the chilled water bath and may, if desired, be recycled.
  • This embodiment has the additional advantage in that less of the water soluble polymer is present in the water bath, thus prolonging the useful life thereof and producing less dissolved matter in the water when it is disposed of.
  • the packages are then dried either under ambient conditions or using hot air knives or the like.
  • the resultant individually packaged hot melt adhesive cartridges can be stored, handled and used directly.
  • the solidified adhesive cartridge may be treated with an anti-stick agent such, for example, as by dipping or spraying with molten wax or other non-tacky compatible coating.
  • the resultant hot melt adhesive cartridge may be packaged in a container to reduce its exposure to the environment, moisture or other contaminants.
  • the container or other wrappings would then be removed by conventional procedures prior to utilization of the hot melt adhesive.
  • FIG. 1 A preferred embodiment of the method of the invention described herein is illustrated in Figure 1.
  • the water soluble film (1) is passed through a series of idler rollers (2) which smoothes the film and controls the tension across the web.
  • the film is then threaded into a film folder (3) which folds the film and forms a lap seal around a one to four inch diameter fill pipe or mandrel (4).
  • the lap seal is sealed with hot air (5), induction sealing or ultrasonic welding and then may be further sprayed with cooling air to set the seal.
  • the tubular film is carried along the exterior of the fill pipe preferably using a series of spreader rings (6), film guide(s) (7) and drive wheels (8) until it reaches the end of the fill pipe, at which point the molten hot melt adhesive, pumped from a remote holding container through the mandrel enters the cylindrical tube (9).
  • the fill pipe may be insulated or jacketed as with double walls and filled with inlet and outlet ports (10) through which heated water, steam or mixtures thereof may be circulated, so as to prevent premature cooling of the molten adhesive in the mandrel and melting of the plastic film on the mandrel.
  • the double wall construction also facilitates complete cleaning and purging of the mandrel after the filling operation is completed.
  • the tubular package is in contact with cooling water (11) or other refrigerant medium.
  • This water contact may be accomplished using a series of water jets positioned around the circumference of the cylindrical tube.
  • a water or cooling ring (12) or series of water or cooling rings may be positioned around the mandrel.
  • a water ring (12) is positioned around the filling end of the mandrel and a channel (21) is cut into the entire interior circumference thereof.
  • Water or other refrigerant enters the ring through at least one inlet (22), flowing through the opening at the inside edge of the channel (23) thereby forming a curtain coating or cascade of water around the entire outer surface of the cylindrical tube.
  • the inner channel may be baffled to allow for uniform distribution of the water. It will be recognized that while the term “spraying with coolant" is utilized herein, the invention also contemplates carrying out the entire filling operation in a cooled environment as in the presence of liquid nitrogen.
  • the adhesive filled tube is passed through voider rolls (13) which crimp or pinch the continuous filled cylinder into smaller cartridge sized segments and which are set so as to assure the proper cartridge length.
  • Spraying with coolant is continued through additional spray nozzles (14) until the package is sufficiently cooled so that the packaged adhesive forms a self-seal formed at the voided portions.
  • the cartridge packages may then be cut at the voided area using conventional means, e.g., mechanical scissor (15), laser cutter, water jet or a heated knife or wire and subsequently cooled to room temperature in a water bath.
  • the voided but uncut cartridge segments, still attached in serial form may be cooled and cut thereafter.
  • the film may be dissolved in the cooling water bath itself or may be subsequently dissolved in a separate water bath prior to final packaging.
  • the mold into which the thermoplastic film is placed and into which the molten adhesive is to be poured may comprise any rigid, self-supporting material.
  • the molds are generally formed from rigid plastic, e.g., acrylonitrile/butadiene/styrene polymers or polypropylene or from metallic substrates. Since it is desirable to keep the film in direct contact with the water bath after filling, the use of perforated or otherwise apertured molds is desired.
  • a particularly preferred mold is formed from steel mesh.
  • the size of the mold varies according to the size of the desired hot melt adhesive block. In general each mold is approximately 3" x 3" x 11" in dimension and often a series of molds are formed from one contiguous plastic, cellulosic or metal sheet.
  • a conventional pressure sensitive hot melt adhesive composition suitable for disposable applications was prepared using a tackified and plasticized blend of ethylene vinyl acetate copolymer and wax.
  • a continuous supported cylindrical tube was formed by wrapping a plastic film comprising a I.2 mil polyvinyl alcohol film around a l.5 inch diameter insulated mandrel or fill pipe. After the lap seam was formed, it was sealed using hot air and then set by spraying with ambient temperature air.
  • the molten hot melt adhesive at a viscosity of 10,000-15,000 cps. (120-130°C) was pumped therein through a nozzle while the entire surface of the film was sprayed with chilled water (5-10°C).
  • the filled tubes were voided at lengths of 6 inches and then cut to form individual cartridges. The resultant cartridges were allowed to cool in a chilled water bath until they had completely solidified.
  • the resultant cartridges were transferred to a hot water bath (about 65°C.) where the film was dissolved and the blocks then removed, dried and packed in appropriate shipping containers.
  • Example 1 The procedure of Example 1 was repeated to package a pressure sensitive hot melt adhesive composition suitable for can/bottle labelling applications.
  • the film was dissolved, the adhesive removed, dried and then passed to a tank containing a molten compatible wax material.
  • the block was dipped into the tank, the surplus material allowed to run off, dried and packed to the shipping container.
  • the outer coating thus formed a non-tacky wax coating compatible with the adhesive.
  • Example I The procedure of Example I may also be repeated using film which consists of low density polyethylene film with a strip of polyvinyl alcohol film adhered to one side wherein the polyvinyl alcohol strip comprises about 20% of the surface area of the film. After dissolution of the polyvinyl alcohol portion of the film, the remaining low density polyethylene may be readily peeled off the cartridge.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Wrappers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP95110096A 1994-08-12 1995-08-10 A production technique for blocks of hot melt adhesives Withdrawn EP0699586A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28959694A 1994-08-12 1994-08-12
US289596 1994-08-12

Publications (1)

Publication Number Publication Date
EP0699586A1 true EP0699586A1 (en) 1996-03-06

Family

ID=23112229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110096A Withdrawn EP0699586A1 (en) 1994-08-12 1995-08-10 A production technique for blocks of hot melt adhesives

Country Status (7)

Country Link
EP (1) EP0699586A1 (cs)
JP (1) JPH0892531A (cs)
KR (1) KR960007132A (cs)
AU (1) AU672555B2 (cs)
CA (1) CA2154497A1 (cs)
NO (1) NO952682L (cs)
TW (1) TW298582B (cs)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879647A1 (de) * 1997-05-16 1998-11-25 Basf Aktiengesellschaft Verfahren und Einrichtung zum Herstellen von Haftklebstoffbändern
WO1999058403A1 (de) * 1998-05-13 1999-11-18 Henkel Kommanditgesellschaft Auf Aktien Verfahren zum verpacken von schmelzklebstoff
EP1203720A1 (de) 2000-11-04 2002-05-08 Frans Vermee GmbH Vorrichtung zur Kühlung von Verpackungen
WO2003062085A1 (en) * 2002-01-26 2003-07-31 Aquasol Limited Cutting or perforating water-soluble film
WO2004037671A1 (en) * 2002-10-21 2004-05-06 National Starch And Chemical Investment Holding Corporation Packaged hot melt adhesive and method
WO2020099481A1 (de) * 2018-11-13 2020-05-22 Tesa Se Verpackte viskoelastische polymermasse
CN115534193A (zh) * 2022-07-27 2022-12-30 竹林伟业科技发展（天津）股份有限公司 一种热熔胶成品及其生产方法、使用方法及塑形模具

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU62159A1 (cs) * 1970-11-30 1971-11-09
JPS48103635A (cs) 1972-04-12 1973-12-26
DE2248046A1 (de) 1972-09-30 1974-04-25 Fuller H B Co Verfahren und vorrichtung zum formen von thermoplastischen materialien wie klebstoffen in eine leicht verpackbare form
EP0011502A1 (en) * 1978-11-17 1980-05-28 Unilever Plc Particulate detergent composition contained within a closed bag of sheet material
DE3234065A1 (de) 1981-09-25 1983-04-14 Dr. Rudolf Schieber Chemische Fabrik GmbH & Co KG, 7085 Bopfingen Verfahren zur behandlung von in mischaggregaten hergestellen druckempfindlichen schmelzmassen
DE3138222C1 (de) 1981-09-25 1983-05-19 Dr. Rudolf Schieber Chemische Fabrik GmbH & Co KG, 7085 Bopfingen Trennmittel zum Herstellen von aus Schmelzkleber bestehenden Strängen
FR2544654A1 (fr) 1983-04-21 1984-10-26 Keller Dorian Papiers Procede et moyen de conditionnement d'un produit solide ou pateux possedant un pouvoir collant et produit nouveau obtenu
EP0244084A2 (en) * 1986-04-01 1987-11-04 Maufant Engineering Design Limited Packaging
FR2601616A1 (fr) 1986-07-21 1988-01-22 Ceca Sa Nouveau procede pour l'obtention de blocs d'autoadhesifs a surface non collante.
DE3625358A1 (de) 1986-07-26 1988-02-04 H & H Hausdorf Ohg Verfahren zum verarbeiten von viskosen massen, beispielsweise schmelzhaftklebstoffen
US4748796A (en) 1983-03-01 1988-06-07 Societe Nouvelle Raffinerie Meridionale De Ceresines - Belix Method for conditioning in a well plate in a permanent adhesive composition
US4755245A (en) 1983-03-01 1988-07-05 Societe Nouvelle Raffinerie Meridionale De Ceresines Method for conditioning a permanent adhesive composition in the form of blocks or sections
EP0469564A1 (en) 1990-08-01 1992-02-05 H.B. FULLER LICENSING & FINANCING, INC. Method of packaging an adhesive composition and corresponding packaged article
WO1993023224A1 (en) * 1992-05-18 1993-11-25 National Starch And Chemical Investment Holding Corporation Method for packaging hot melt adhesives
WO1994001330A1 (en) 1992-07-06 1994-01-20 H.B. Fuller Company A method of packaging an adhesive composition and the composition of the packaging
WO1994013451A1 (en) * 1992-12-09 1994-06-23 National Starch And Chemical Investment Holding Corporation Method for tackless packaging of hot melt adhesives
EP0608801A1 (en) * 1993-01-25 1994-08-03 Aicello Chemical Company Limited Composite film bags for packaging
US5373682A (en) 1992-05-18 1994-12-20 National Starch And Chemical Investment Holding Corporation Method for tackless packaging of hot melt adhesives

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE454168B (sv) * 1982-09-27 1988-04-11 Tetra Pak Ab Sett och anordning for dosering av fyllgods vid tillverkning av forpackningsbehallare
CA2067651C (en) * 1991-06-11 1998-04-14 Orihiro Tsuruta Vertical type forming, filling and closing machine for flexible package

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU62159A1 (cs) * 1970-11-30 1971-11-09
JPS48103635A (cs) 1972-04-12 1973-12-26
DE2248046A1 (de) 1972-09-30 1974-04-25 Fuller H B Co Verfahren und vorrichtung zum formen von thermoplastischen materialien wie klebstoffen in eine leicht verpackbare form
EP0011502A1 (en) * 1978-11-17 1980-05-28 Unilever Plc Particulate detergent composition contained within a closed bag of sheet material
DE3234065A1 (de) 1981-09-25 1983-04-14 Dr. Rudolf Schieber Chemische Fabrik GmbH & Co KG, 7085 Bopfingen Verfahren zur behandlung von in mischaggregaten hergestellen druckempfindlichen schmelzmassen
DE3138222C1 (de) 1981-09-25 1983-05-19 Dr. Rudolf Schieber Chemische Fabrik GmbH & Co KG, 7085 Bopfingen Trennmittel zum Herstellen von aus Schmelzkleber bestehenden Strängen
US4748796A (en) 1983-03-01 1988-06-07 Societe Nouvelle Raffinerie Meridionale De Ceresines - Belix Method for conditioning in a well plate in a permanent adhesive composition
US4755245A (en) 1983-03-01 1988-07-05 Societe Nouvelle Raffinerie Meridionale De Ceresines Method for conditioning a permanent adhesive composition in the form of blocks or sections
FR2544654A1 (fr) 1983-04-21 1984-10-26 Keller Dorian Papiers Procede et moyen de conditionnement d'un produit solide ou pateux possedant un pouvoir collant et produit nouveau obtenu
EP0244084A2 (en) * 1986-04-01 1987-11-04 Maufant Engineering Design Limited Packaging
FR2601616A1 (fr) 1986-07-21 1988-01-22 Ceca Sa Nouveau procede pour l'obtention de blocs d'autoadhesifs a surface non collante.
DE3625358A1 (de) 1986-07-26 1988-02-04 H & H Hausdorf Ohg Verfahren zum verarbeiten von viskosen massen, beispielsweise schmelzhaftklebstoffen
EP0469564A1 (en) 1990-08-01 1992-02-05 H.B. FULLER LICENSING & FINANCING, INC. Method of packaging an adhesive composition and corresponding packaged article
WO1993023224A1 (en) * 1992-05-18 1993-11-25 National Starch And Chemical Investment Holding Corporation Method for packaging hot melt adhesives
US5373682A (en) 1992-05-18 1994-12-20 National Starch And Chemical Investment Holding Corporation Method for tackless packaging of hot melt adhesives
US5401455A (en) 1992-05-18 1995-03-28 National Starch And Chemical Investment Holding Corporation Method for packaging hot melt adhesives
WO1994001330A1 (en) 1992-07-06 1994-01-20 H.B. Fuller Company A method of packaging an adhesive composition and the composition of the packaging
WO1994013451A1 (en) * 1992-12-09 1994-06-23 National Starch And Chemical Investment Holding Corporation Method for tackless packaging of hot melt adhesives
EP0608801A1 (en) * 1993-01-25 1994-08-03 Aicello Chemical Company Limited Composite film bags for packaging

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879647A1 (de) * 1997-05-16 1998-11-25 Basf Aktiengesellschaft Verfahren und Einrichtung zum Herstellen von Haftklebstoffbändern
US6159557A (en) * 1997-05-16 2000-12-12 Basf Aktiengesellschaft Production of pressure-sensitive adhesive tapes, and apparatus for it
WO1999058403A1 (de) * 1998-05-13 1999-11-18 Henkel Kommanditgesellschaft Auf Aktien Verfahren zum verpacken von schmelzklebstoff
EP1203720A1 (de) 2000-11-04 2002-05-08 Frans Vermee GmbH Vorrichtung zur Kühlung von Verpackungen
DE10054836C2 (de) * 2000-11-04 2002-11-07 Vermee Frans Gmbh Vorrichtung zur Kühlung von Verpackungen
WO2003062085A1 (en) * 2002-01-26 2003-07-31 Aquasol Limited Cutting or perforating water-soluble film
WO2004037671A1 (en) * 2002-10-21 2004-05-06 National Starch And Chemical Investment Holding Corporation Packaged hot melt adhesive and method
US7350644B2 (en) 2002-10-21 2008-04-01 National Starch And Chemical Investment Holding Corporation Multi-layer film packaging of hot melt adhesive
WO2020099481A1 (de) * 2018-11-13 2020-05-22 Tesa Se Verpackte viskoelastische polymermasse
US11987409B2 (en) 2018-11-13 2024-05-21 Tesa Se Packaged viscoelastic polymer substance
CN115534193A (zh) * 2022-07-27 2022-12-30 竹林伟业科技发展（天津）股份有限公司 一种热熔胶成品及其生产方法、使用方法及塑形模具

Also Published As

Publication number Publication date
CA2154497A1 (en) 1996-02-13
AU672555B2 (en) 1996-10-03
NO952682L (no) 1996-02-13
TW298582B (cs) 1997-02-21
AU2174095A (en) 1996-04-18
NO952682D0 (no) 1995-07-06
JPH0892531A (ja) 1996-04-09
KR960007132A (ko) 1996-03-22

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