DE3401669A1 - Sliding component in the form of a section from a plastic profile made from polyethylene - Google Patents

Sliding component in the form of a section from a plastic profile made from polyethylene

Info

Publication number
DE3401669A1
DE3401669A1 DE19843401669 DE3401669A DE3401669A1 DE 3401669 A1 DE3401669 A1 DE 3401669A1 DE 19843401669 DE19843401669 DE 19843401669 DE 3401669 A DE3401669 A DE 3401669A DE 3401669 A1 DE3401669 A1 DE 3401669A1
Authority
DE
Germany
Prior art keywords
polyethylene
sliding component
plastic profile
ram extrusion
proviso
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.)
Ceased
Application number
DE19843401669
Other languages
German (de)
Inventor
Hans 5489 Bongard Geng
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.)
Plastik Maschbau Co KG GmbH
Original Assignee
Plastik Maschbau Co KG GmbH
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 Plastik Maschbau Co KG GmbH filed Critical Plastik Maschbau Co KG GmbH
Priority to DE19843401669 priority Critical patent/DE3401669A1/en
Priority to NO844637A priority patent/NO844637L/en
Priority to FI844757A priority patent/FI844757L/en
Priority to IT19074/85A priority patent/IT1183108B/en
Priority to FR8500608A priority patent/FR2560113A1/en
Priority to SE8500250A priority patent/SE8500250L/en
Publication of DE3401669A1 publication Critical patent/DE3401669A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof
    • A63C5/056—Materials for the running sole
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0005—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0063—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0088—Molecular weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
    • B29L2031/5263—Skis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Microscoopes, Condenser (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

The use of a section of a plastic profile made from polyethylene, in particular of a flat profile produced by ram extrusion, as a sliding component. The wall thickness of the plastic profile is, apart from any moulded ribs, less than 3 mm, and the molecular weight is greater than 1 million. The direction of the ram extrusion of the plastic profile preferably corresponds to the direction of the sliding load which the sliding component has to absorb.

Description

Andrejewsld, Honke & Partner, Patentanwälte in EssenAndrejewsld, Honke & Partner, patent attorneys in Essen

_ ο_ ο

Die Erfindung bezieht sich auf die Verwendung eines Abschnittes (oder Ausschnittes) aus einem Kunststoffprofil aus Polyäthylen, insbesondere aus einem Flachprofil als Gleitbauteil. Solche Gleitbauteile finden in den verschiedenen Bereichen der Technik Verwendung, wo gleitende Reibung, möglichst gleitmittelfrei oder schmiermittelfrei, aufzunehmen ist. Häufig wird das Gleitbauteil dazu auf einem Träger durch versenkte Schrauben, Kleben oder auf andere Weise befestigt. Insbesondere werden in der neueren Praxis kurz als Ski bezeichnete Gleitkufen, mit denen der Skisport betrieben wird, auf ihrer Unterseite mit einem solchen Gleitbauteil versehen. Stets kommt es darauf an, daß das Gleitbauteil bei den auftretenden reibenden Beanspruchungen einen geringen Reibungskoeffizienten sowie eine lange Standzeit oder Lebensdauer aufweist.The invention relates to the use of a section (or cutout) from a plastic profile made of polyethylene, in particular from a flat profile as a sliding component. Such sliding components can be found in various areas in technology use where sliding friction, preferably free of lubricant or lubricant, is to be absorbed. Frequently the sliding component is attached to a carrier by countersunk screws, gluing or in another way. In particular are in the more recent practice briefly referred to as skis skids, with which skiing is carried out, on their Provided the underside with such a sliding component. It is always important that the sliding component in the occurring frictional loads has a low coefficient of friction and a long service life or service life.

Im Rahmen der bekannten Maßnahmen wird das Kunststoffprofil durch Schälen oder Spalten aus einer gepreßten Ronde oder aus einer gepreßten Platte geformt. Es ist auch üblich, derartige Gleitbauteile aus einem entsprechenden Kunststoffblock durch spanende Formgebung herzustellen. Das ist einerseits aufwendig, darüber hinaus erfüllen die Gleitbauteile die bei Gleitbeanspruchung gestellten Forderungen nur unvollständig. Häufig genügt der Reibungskoeffizient nicht den Ansprüchen, darüber hinaus ist die Standzeit zu klein. Um den Reibungskoeffizienten zu verbessern, ist es bekannt, die Oberfläche durch besondere Maßnahmen zu polieren und zuvor in der Masse ausgebildete Poren zu füllen. Selbst wenn derartige zusätzliche Maßnahmen durchgeführt werden, genügt der Reibungskoeffizient und die Standzeit den Anforderungen häufig nicht.As part of the known measures, the plastic profile formed by peeling or splitting from a pressed round blank or from a pressed plate. It is also common to have such Manufacture sliding components from a corresponding plastic block by machining. That is on the one hand costly, in addition, the sliding components only incompletely meet the requirements for sliding stress. Often the coefficient of friction does not meet the requirements, and the service life is too short. About the coefficient of friction To improve, it is known to polish the surface by special measures and beforehand in the mass to fill trained pores. Even if such additional measures are taken, the coefficient of friction is sufficient and the service life often does not meet the requirements.

Andrejewski, Honke & Partner, Patentanwälte in EssenAndrejewski, Honke & Partner, patent attorneys in Essen

Der Erfindung liegt die Aufgabe zugrunde, ein Kunststoffprofil anzugeben, welches sich im Einsatz als Gleitprofil durch extrem niedrigen Reibungskoeffizienten bei überraschend hoher Standzeit auszeichnet.The invention is based on the object of a plastic profile indicate which is in use as a sliding profile due to extremely low coefficient of friction with surprisingly high Service life.

Die Lösung dieser Aufgabe besteht in der Verwendung eines Abschnittes aus einem Kunststoffprofil aus Polyäthylen, insbesondere aus einem Flachprofil, welches Kunststoffprofil durch Ram-Extrusion hergestellt worden ist, als Gleitbauteil mit der Maßgabe, daß die Wanddicke (bis auf evtl. angeformte Rippen) kleiner ist als 3 mm und daß das Molekulargewicht über 1 mio liegt. - Der Ausdruck Polyäthylen bezeichnet insbesondere Niederdruckpolyäthylen, obwohl die Erfindung nicht auf die Verwendung von Niederdruckpolyäthylen beschränkt ist, sondern auch Hochdruckpolyäthylen umfaßt. Ram-Extrusion bezeichnet ein besonderes Strangpreßverfahren, welches mit einem Kolbenextruder arbeitet (vgl. DE-PS 28 29 232).The solution to this problem consists in the use of a section made of a plastic profile made of polyethylene, in particular from a flat profile, which plastic profile has been produced by ram extrusion, as a sliding component with the proviso that the wall thickness (except for any molded ribs) is less than 3 mm and that the molecular weight is over 1 million. - The term polyethylene denotes in particular Low density polyethylene, although the invention is not limited to the use of low density polyethylene, but also includes high pressure polyethylene. Ram extrusion is a special extrusion process that uses a Piston extruder works (see. DE-PS 28 29 232).

Das erfindungsgemäß zu verwendende Bauteil ist insbesondere bei Temperaturen unter O C einsetzbar, kann also auf der Unterseite eines Skis angeordnet, z. B. aufgeklebt werden. Um die rein mechanische Festigkeit des Gleitbauteils zu verbessern, lehrt die Erfindung, das Polyäthylen vor der Ram-Extrusion mit Verstärkungsfasern zu vermischen. Bei den Verstärkungsfasern kann es sich um mineralische Fasern, Kohlefasern, Metall- oder auch Kunststoffasern handeln. Überraschenderweise wird der Reibungskoeffizient an der Oberfläche des Gleitbauteils durch diese Beimischungen nicht verändert, weilThe component to be used according to the invention is in particular Can be used at temperatures below O C, so it can be arranged on the underside of a ski, e.g. B. be glued. Around To improve the purely mechanical strength of the sliding component, the invention teaches the polyethylene before the ram extrusion to mix with reinforcing fibers. The reinforcing fibers can be mineral fibers, carbon fibers, Trade metal or synthetic fibers. Surprisingly the coefficient of friction on the surface of the sliding component is not changed by these admixtures, because

Andrejewsld, Honke & Partner, Patentanwälte in EssenAndrejewsld, Honke & Partner, patent attorneys in Essen

— 5 —- 5 -

die Verstärkungsfasern im Inneren des Gleitbauteils bleiben und die Struktur der Oberfläche nicht beeinträchtigen. Es versteht sich, daß man zu große Mengen von Verstärkungsfasern nicht beigeben wird. Ein Optimum zwischen Festigkeitsverhalten einerseits, Reibungskoeffizienten andererseits, kann leicht durch Probieren ermittelt werden. Im Rahmen der Erfindung liegt es, das Polyäthylen vor der Ram-Extrusion mit feinkörnigen oder feinfaserigen, leitfähigen Substanzen zu vermischen. Auf diese Weise läßt sich ohne Beeinträchtigung der Standzeit und des Reibungskoeffizienten erreichen, daß das Gleitbauteil ausreichend antistatisch ausgerüstet ist.the reinforcement fibers remain inside the sliding component and do not affect the structure of the surface. It it goes without saying that excessive amounts of reinforcing fibers will not be added. An optimum between strength behavior on the one hand, coefficient of friction on the other hand, can easily be determined by trial and error. Within the scope of the invention it is to mix the polyethylene with fine-grained or fine-fiber, conductive substances prior to ram extrusion. In this way, the sliding component can be achieved without impairing the service life and the coefficient of friction is adequately antistatic.

Die erreichten Vorteile sind darin zu sehen, daß ein erfindungsgemäßes Gleitbauteil sich durch einen überraschend niedrigen Reibungskoeffizienten und durch eine überraschend lange Standzeit auszeichnet. Das ist vermutlich darauf zurückzuführen, daß bei der Ram-Extrusion, mit der erfindungsgemäß gearbeitet wird, unter Berücksichtigung der besonderen Maßgaben, die für die Erfindung wesentlich sind, besondere Molekularorientierungen und intermolekulare Verkettungen erreicht werden, die den Reibungskoeffizienten und die Standzeit positiv beeinflussen. Zu besonders niedrigen Werten in bezug auf den Reibungskoeffizienten und zu besonders hohen Werten in bezug auf die Standzeit kommt man dann, wenn das Gleitbauteil so eingesetzt wird, daß die Richtung der Ram-Extrusion mit der Richtung der Gleitbeanspruchung des Gleitbauteils übereinstimmt. Aber auch wenn die genannten Richtungen entgegengesetzt sind, erreicht man besondere Vorteile. Eine Gleitbeanspruchung mit Hauptkomponente quer zur Richtung der Ram-Extrusion wird tunlichst vermieden.The advantages achieved are to be seen in the fact that an inventive Sliding component has a surprisingly low coefficient of friction and a surprisingly long one Service life. This is probably due to the fact that in the ram extrusion, with the invention is carried out, taking into account the special requirements that are essential for the invention, special molecular orientations and intermolecular linkages are achieved, which have a positive effect on the coefficient of friction and the service life influence. At particularly low values with regard to the coefficient of friction and at particularly high values with regard to the service life is achieved when the sliding component is used in such a way that the direction of the ram extrusion coincides with the Direction of the sliding stress of the sliding component coincides. But even if the directions mentioned are opposite there are special advantages. A sliding stress with a principal component transverse to the direction of ram extrusion is avoided whenever possible.

Claims (5)

Andrejewski, Honke & Partner Patentanwälte Diplom-Physiker Dr. Walter Andrejewski Diplom-Ingenieur Dr.-lng. Manfred Honke Diplom-Physiker Dr. Karl Gerhard Masch Anwaltsakte: 4300 Essen 1, Theaterplatz 3, Postf. 10 02 60 958/Be- 10. Januar 1984 Patentanmeldung Plastik-Maschinenbau GmbH & Co. KG - Entwicklungsgesellschaft 5489 Kelberg Gleitbauteil in Form eines Abschnittes aus einem Kunststoffprofil aus Polyäthylen Patentansprüche:Andrejewski, Honke & Partner Patent Attorneys Graduated Physicists Dr. Walter Andrejewski graduate engineer Dr.-lng. Manfred Honke Graduated Physicist Dr. Karl Gerhard Masch Attorney's files: 4300 Essen 1, Theaterplatz 3, Postf. 10 02 60 958 / Be January 10, 1984 Patent application Plastik-Maschinenbau GmbH & Co. KG - Development company 5489 Kelberg Sliding component in the form of a section made of a plastic profile made of polyethylene Patent claims: 1. Verwendung eines Abschnittes aus einem Kunststoffprofil aus Polyäthylen, insbesondere aus einem Flachprofil, welches Kunststoffprofil durch Ram-Extrusion hergestellt worden ist, als Gleit bauteil mit der Maßgabe, daß die Wanddicke kleiner ist als 3 mm und daß das Molekulargewicht über 1 mio liegt.1. Using a section made from a plastic profile Polyethylene, in particular from a flat profile, which plastic profile has been produced by ram extrusion, as a slide component with the proviso that the wall thickness is less than 3 mm and that the molecular weight is over 1 million. Andrejewski, Honke & Partner, Patentanwälte in EssenAndrejewski, Honke & Partner, patent attorneys in Essen 2. Verwendung nach Anspruch 1 mit der weiteren Maßgabe, daß die Ram-Extrusionsrichtung und die Richtung der Gleitbeanspruchung des Gleitbauteils übereinstimmen.2. Use according to claim 1 with the further proviso that the ram extrusion direction and the direction of the sliding stress of the sliding component match. 3. Verwendung nach einem der Ansprüche 1 oder 2 mit der
weiteren Maßgabe, daß das Gleitbauteil bei Temperaturen unter O C eingesetzt wird.3. Use according to one of claims 1 or 2 with the
further requirement that the sliding component is used at temperatures below OC. 4. Verwendung nach einem der Ansprüche 1 bis 3 mit der Maßgabe, daß das Polyäthylen vor der Ram-Extrusion mit Verstärkungsfasern vermischt wird.4. Use according to one of claims 1 to 3 with the proviso, that the polyethylene is mixed with reinforcing fibers prior to ram extrusion. 5. Verwendung nach einem der Ansprüche 1 bis 4 mit der Maßgabe, daß das Polyäthylen vor der Ram-Extrusion mit feinkörnigen oder feinfaserigen leitfähigen Substanzen vermischt
wird.5. Use according to one of claims 1 to 4 with the proviso that the polyethylene is mixed with fine-grained or fine-fiber conductive substances before the ram extrusion
will.
DE19843401669 1984-01-19 1984-01-19 Sliding component in the form of a section from a plastic profile made from polyethylene Ceased DE3401669A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19843401669 DE3401669A1 (en) 1984-01-19 1984-01-19 Sliding component in the form of a section from a plastic profile made from polyethylene
NO844637A NO844637L (en) 1984-01-19 1984-11-21 USING A PART OF A POLYETHYL PLATE PROFILE AS A SLIDE
FI844757A FI844757L (en) 1984-01-19 1984-12-03 GLIDBYGGDEL I FORM AV ETT AVSNITT AV EN PLASTPROFIL AV POLYETEN.
IT19074/85A IT1183108B (en) 1984-01-19 1985-01-11 SLIDING PORTION-SHAPED COMPONENT OF A POLYETHYLENE PLASTIC PROFILE
FR8500608A FR2560113A1 (en) 1984-01-19 1985-01-16 Plastic low friction slides
SE8500250A SE8500250L (en) 1984-01-19 1985-01-18 SLIDING CONSTRUCTION ELEMENTS IN THE FORM OF A PART OF A PLASTIC PROFILE RAIL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843401669 DE3401669A1 (en) 1984-01-19 1984-01-19 Sliding component in the form of a section from a plastic profile made from polyethylene

Publications (1)

Publication Number Publication Date
DE3401669A1 true DE3401669A1 (en) 1985-08-01

Family

ID=6225300

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843401669 Ceased DE3401669A1 (en) 1984-01-19 1984-01-19 Sliding component in the form of a section from a plastic profile made from polyethylene

Country Status (6)

Country Link
DE (1) DE3401669A1 (en)
FI (1) FI844757L (en)
FR (1) FR2560113A1 (en)
IT (1) IT1183108B (en)
NO (1) NO844637L (en)
SE (1) SE8500250L (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414185A1 (en) * 1974-03-23 1975-10-09 Loba Holmenkol Chemie Lhc RUNNING SURFACE FOR SPORTS EQUIPMENT FOR GLIDING AND WALKING OVER SNOW AND ICE SURFACES, E.G. SKI
DE2825406A1 (en) * 1977-06-10 1978-12-21 Norsk Skiforsk SKI TREAD MATERIAL AND METHOD OF MANUFACTURING IT
DE3013360A1 (en) * 1979-04-09 1980-10-23 Electrolux Ab METHOD FOR OPERATING A COMBINED COOLING AND FREEZING FURNITURE AND COOLING AND FREEZING FURNITURE FOR IMPLEMENTING THE METHOD
DE2829232C2 (en) * 1978-07-03 1983-10-20 Ruhrchemie Ag, 4200 Oberhausen Process for the production of moldings from high molecular weight low-pressure polyethylene

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414185A1 (en) * 1974-03-23 1975-10-09 Loba Holmenkol Chemie Lhc RUNNING SURFACE FOR SPORTS EQUIPMENT FOR GLIDING AND WALKING OVER SNOW AND ICE SURFACES, E.G. SKI
DE2825406A1 (en) * 1977-06-10 1978-12-21 Norsk Skiforsk SKI TREAD MATERIAL AND METHOD OF MANUFACTURING IT
DE2829232C2 (en) * 1978-07-03 1983-10-20 Ruhrchemie Ag, 4200 Oberhausen Process for the production of moldings from high molecular weight low-pressure polyethylene
DE3013360A1 (en) * 1979-04-09 1980-10-23 Electrolux Ab METHOD FOR OPERATING A COMBINED COOLING AND FREEZING FURNITURE AND COOLING AND FREEZING FURNITURE FOR IMPLEMENTING THE METHOD

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Kunststoffe, Bd. 73 (6), 1983, S. 307 *

Also Published As

Publication number Publication date
IT8519074A1 (en) 1986-07-11
SE8500250L (en) 1985-07-20
FR2560113A1 (en) 1985-08-30
SE8500250D0 (en) 1985-01-18
IT1183108B (en) 1987-10-05
FI844757L (en) 1985-07-20
NO844637L (en) 1985-07-22
IT8519074A0 (en) 1985-01-11
FI844757A0 (en) 1984-12-03

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