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
  • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
  • B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure

Definitions

• the invention relates to a sleeve pack for transporting and/or storing solid products liable to deformation on temperature exposure.
• sleeve packs which, particularly in the case of relatively large containers, are required to absorb high forces without themselves deforming.
• sleeve packs with bases made of injection-moulded plastics, more particularly of polyethylene or polypropylene, have become established.
• the side wall connected to the base, the body of the sleeve pack, which is subject to little or no loading, can be formed for cost reasons from a paper material, in particular from cardboard.
• sleeve packs which are formed singularly of a paper material.
• a disadvantage of the known sleeve packs is that they frequently lack sufficient dimensional stability to absorb the forces that may occur on the thermal deformation of solid products which are transported in the sleeve pack.
• Polyurethane hotmelt adhesives for example, are frequently packaged and transported in the form of cylindrical blocks, known as cartridges, often with a weight in the range from 2 to 20 kg.
• the cartridges must fit into existing melting apparatus, in which they are subject in particular to the pressure of a platen, which is generally planar.
• the cartridges For the trouble-free processing of the polyurethane hotmelt adhesive cartridges in the melting apparatus, and for the pressure application of the platen, it is necessary in particular for the cartridges to have a planar base.
• a sleeve pack for transporting and/or storing solid products liable to deformation on temperature exposure, comprising a base and a body joined to the base, characterized in that the base is formed from a honeycomb sheet.
• Honeycomb sheets are lightweight structural components which on account of their multi-wall construction, with or without sheets of solid material closing them off in a sandwich format at either end, have a high fraction of cavities and combine excellent mechanical properties, in particular high stability, strength and damping, all with a low inherent weight.
• honeycombs are not critical in this utility; it may, for example, be hexagonal in formation, like bees' honeycombs, or else may be generally polygonal in its formation.
• the material selected for the honeycomb sheet may for example be a plastic, more particularly polypropylene.
• the base is preferred, however, to produce the base from a paper honeycomb sheet. This is especially advantageous when the body of the sleeve pack as well is formed from a similar material, more specifically from a paper material, since in that case the sleeve pack can be recycled as a single material.
• the paper stock for the body of the sleeve pack is advantageously a cardboard, in particular a wound cardboard.
• the thickness of the honeycomb sheet for the base of the sleeve pack is selected in accordance with the size and weight of the container, preferably in the range from 10 to 25 mm.
• the base and body of the sleeve pack may be joined in any known way, more particularly by stapling, gluing or clipping together or by means of tongue and groove.
• Paper honeycomb sheets are produced, for example, by SWAP GmbH, Frankenberg, as Fixboard® products from Melecky a.s., or as BeeBoard® products from Besin International n.v.
• the geometry of the sleeve pack is preferably cylindrical, more particularly circular-cylindrical.
• Exemplary dimensions of the body are an internal diameter of 282 mm, an external diameter of 288 mm and an overall height of 350 mm.
• the base is formed, by way of example, as a circular disc having a diameter of 282 mm and a height of 15 mm.
• the honeycomb sheet selected for the base has a compressive strength of 40 t/m 2 and a buckling resistance of 40 t/m 2 .
• the sleeve pack of the invention is suitable in particular for transporting polyurethane compositions which are solid at room temperature, from about 20 to 25° C., but are liable to deformation on temperature exposure.
• these compositions may be one-component hotmelt adhesives, known as PU hotmelts, of the type, for example, of Kleiberit® PUR-SK, Jowatherm-Reaktant® PU hotmelt adhesive, Henkel Purmelt® or Fuller Ipatherm®.
• the product In the operation of producing these hotmelt adhesives the product is obtained in a liquid form, frequently at a temperature between about 120 and 150° C., and is initially introduced into a composite aluminium pouch.
• the composite aluminium pouch filled with the hotmelt adhesive cools down in the sleeve pack over the course of approximately 12 to 24 h, and in doing so it solidifies to form a cylindrical block, the cartridge.
• the high dimensional stability of the sleeve pack ensures that there is no change in the shape of the cartridge even when transported under extreme climatic conditions.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packages (AREA)
• Wrappers (AREA)
• Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
• Buffer Packaging (AREA)
• Pens And Brushes (AREA)
• Packaging Frangible Articles (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=34258927

Family Applications (1)

Country Status (12)

Citations (14)

• 2004
  • 2004-12-03 DE DE202004018720U patent/DE202004018720U1/de not_active Expired - Lifetime
• 2005
  • 2005-12-05 AT AT05848191T patent/ATE402082T1/de active
  • 2005-12-05 CA CA002590393A patent/CA2590393A1/en not_active Abandoned
  • 2005-12-05 RU RU2010122922/12U patent/RU99772U1/ru active Protection Beyond IP Right Term
  • 2005-12-05 PL PL05848191T patent/PL1838583T3/pl unknown
  • 2005-12-05 SI SI200530432T patent/SI1838583T1/sl unknown
  • 2005-12-05 DE DE502005004850T patent/DE502005004850D1/de active Active
  • 2005-12-05 EP EP05848191A patent/EP1838583B1/de active Active
  • 2005-12-05 JP JP2007543799A patent/JP2008521718A/ja active Pending
  • 2005-12-05 US US11/792,058 patent/US20070295787A1/en not_active Abandoned
  • 2005-12-05 WO PCT/EP2005/013009 patent/WO2006058791A1/de active IP Right Grant
  • 2005-12-05 RU RU2007125123/11A patent/RU2007125123A/ru unknown
  • 2005-12-05 ES ES05848191T patent/ES2311244T3/es active Active
  • 2005-12-05 PT PT05848191T patent/PT1838583E/pt unknown

Patent Citations (14)

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