WO2007079780A1 - Procede de fabrication de diaphragmes a partir d'un materiau elastomere polymerique reticule - Google Patents

Procede de fabrication de diaphragmes a partir d'un materiau elastomere polymerique reticule Download PDF

Info

Publication number
WO2007079780A1
WO2007079780A1 PCT/EP2006/000664 EP2006000664W WO2007079780A1 WO 2007079780 A1 WO2007079780 A1 WO 2007079780A1 EP 2006000664 W EP2006000664 W EP 2006000664W WO 2007079780 A1 WO2007079780 A1 WO 2007079780A1
Authority
WO
WIPO (PCT)
Prior art keywords
bellows
molding
crosslinking
thermoplastic
crosslinked
Prior art date
Application number
PCT/EP2006/000664
Other languages
German (de)
English (en)
Inventor
Joachim Wette
Original Assignee
Gkn Driveline International 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 Gkn Driveline International Gmbh filed Critical Gkn Driveline International Gmbh
Priority to DE112006003257.7T priority Critical patent/DE112006003257B4/de
Publication of WO2007079780A1 publication Critical patent/WO2007079780A1/fr

Links

Classifications

    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
    • B29C2035/0877—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using electron radiation, e.g. beta-rays
    • 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
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • B29K2105/243—Partially cured
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers

Definitions

  • the present invention relates to a process for the production of bellows, in particular for joints, more preferably constant velocity joints, of a thermoplastic elastomeric material, as well as bellows produced by the method according to the invention and a constant velocity joint comprising such bellows.
  • Bellows in particular rolling bellows and bellows, are used to seal components. In particular, they are used in the sealing of joints in the automotive industry. Such bellows have a first collar with a larger diameter for attachment to an outer joint part of a hinge and a second collar with a smaller diameter for attachment to a shaft.
  • Rolling bellows have a half-torus-shaped bellows wall connecting the bundles, whereas bellows have a conically shaped, accordion-like bellows wall area between the two bundles.
  • Rolling bellows are used in particular in articulated structures that allow high bending angles and a shift at high speeds, bellows are used in particular for constant velocity joints.
  • bellows are made of a material which has sufficient mechanical properties even at higher temperatures.
  • bellows made of rubber material such as.
  • Polychloroprene can be used at temperatures up to 120 °
  • bellows made of thermoplastic elastomers at temperatures up to 140 °
  • temperatures up to 180 0 C either silicone rubber or hydrogenated nitrile-butadiene rubbers (HNBR) may be used.
  • HNBR hydrogenated nitrile-butadiene rubbers
  • the disadvantage especially of the two last-mentioned rubbers, is that the starting materials are relatively expensive and, moreover, they have disadvantageous properties in the cold, compared with bladders made from conventional rubbers or thermoplastic elastomers. In addition, such bellows can also be recycled bad.
  • the temperatures of use of bellows made from conventional rubber ken such as, for example, polychloroprene or thermoplastic elastomers not sufficient in view of the above-described heat generation under heavy loads.
  • thermoplastic elastomeric material wherein the material is irreversibly at least partially crosslinked before shaping the bellows, is preferred with a degree of crosslinking in a range of about 15% to about 100%, more preferably from about 15% to about 85%, even more preferably from about 45% to about 65%.
  • the thermoplastic elastomeric material may be present in particular in the form of powders, even spiky powders, as granules or in the form of pellets or the like.
  • the bellows produced from the material treated in this way have uniform properties, in particular in mass production. As a result, the disadvantages are avoided, which occur in a subsequent cross-linking of the material of the shaped bellows.
  • Crosslinking is preferably carried out chemically and / or thermally and / or by radiation, wherein crosslinking by electron beams is particularly preferred. Particular preference is given to crosslinking with beta rays, gamma rays, cathode rays and / or x-rays. More preferably, the crosslinking is carried out with radiation having an energy of at least about 0.5 MeV, based on an electron.
  • the thermoplastically elastomeric material treated in this way can be deformed in the stated degree of crosslinking by the methods usually known from the prior art for the production of bellows.
  • bellows produced in this case have improved mechanical properties, in particular increased values for tensile strength and hardness, and are also used at temperatures of up to 180-190 0 C without here deterioration of the material properties, such as from known in the art, takes place.
  • the irreversibly crosslinked material is mixed prior to molding with starting material which has not been irreversibly crosslinked.
  • Thermoplastic elastomeric Material which is used as starting material is usually also crosslinked, but the corresponding physical linkage points are reversible again soluble and knotbar.
  • an irreversible chemical crosslinking which can not be reversed by chemical or thermal see or other treatment, received.
  • the mixture contains at most about 70% by weight of the irreversibly crosslinked material, more preferably at most about 60% by weight of the irreversibly crosslinked material, even more preferably at most about 50% by weight of the irreversibly crosslinked material.
  • thermoplastic elastomeric material Characterized in that in its chemical composition identical starting material is mixed with irreversibly crosslinked material, a very uniform and homogeneous deformation can be advantageously carried out.
  • mechanical properties and / or the temperature properties of the bellows produced by means of the thermoplastic elastomeric material can be preset by the mixture.
  • the molding is carried out by means of injection molding, blow molding or injection blow molding.
  • injection molding extrusion extrusion, transfer molding and injection molding are particularly preferred, with molding preferably being carried out by means of extrusion blow molding and / or blow molding blow molding, the latter process being particularly preferred.
  • the material is selected from a group comprising thermoplastic polyester elastomers (TPEE), thermoplastic polyether-polyamide elastomers (TPEA), thermoplastic polyolefins (TPO) and / or thermoplastic crosslinked polyolefins (TPV).
  • TPEE thermoplastic polyester elastomers
  • TPEA thermoplastic polyether-polyamide elastomers
  • TPO thermoplastic polyolefins
  • TPV thermoplastic crosslinked polyolefins
  • the material selected is TPEE. This preferably has polybutylene terephthalate as hard segments, whereas the soft segments may consist in particular of amorphous polyesters and / or polyethers.
  • the material has hard segments with a glass transition temperature T 9 in a range of about - 90 0 C to about 150 0 C.
  • the material further comprises soft segments having a glass transition temperature T 9 in a range of - 90 ° C to - 35 0 C.
  • the glass transition temperature T 9 of the irreversibly crosslinked material is not more than about 25 0 C compared to the non-irreversibly crosslinked starting material , preferably not more than about 20 ° C., even more preferably not more than about 10 ° C., and even more preferably not increased.
  • the material is irradiated by means of electron beams with a uniform and / or uneven intensity and thereby irreversibly crosslinked.
  • Further parameters which can be varied during irradiation by means of electron beams of whatever type are, in particular, the duration of the exposure of the starting material to an electron beam and the energy of the electron beams themselves.
  • the material is preferably exposed to electron beams at least twice. This can be done in such a way that the material is simultaneously exposed to a multiple beam, in which case the individual beams of this multiple beam have different energies. It is particularly advantageous if the energy of the electron beams used in the multi-beam increases successively in carrying out the material through the multiple beam. However, it is also possible that the individual beams of the multiple beam have the same energies. In addition, a plurality of individual electron beams can be provided subsequently instead of a multiple beam.
  • the irreversibly crosslinked thermoplastic elastomeric material is, for example, transported by means of a conveyor belt and brought into contact with the electron beams in a chamber. After passing through the chamber, the now irreversibly at least partially crosslinked material can then be removed from the conveyor belt and fed to further processing.
  • the material is moved during the treatment.
  • This is not to be understood as meaning the transport of the material to be crosslinked to, for example, a conveyor belt, but rather that the material, which is, for example, in powder form, present as granules or as pellets, e.g. is brought by shaking in different layers, so that the individual particles are uniformly bombarded with rays, in particular electron beams.
  • This movement can also take place in that, after a first irradiation, material is removed from the conveyor belt and subsequently again fed onto the conveyor belt in another orientation, this conveyor belt subsequently passing through the same or a further electron beam chamber.
  • the formation of the bellows with the at least partially reversibly crosslinked material is preferably carried out at temperatures of at least about 200 ° C, more preferably, the processing temperature is in a range of about 200 0 C to about 250 0 C.
  • the present invention further relates to a bellows produced according to the method according to the invention, and in particular a rolling bellows or bellows, as well as a constant velocity joint, comprising a bellows.
  • bellows produced with unblended thermoplastic elastomeric material these have increased protection against undesired deformations, in particular in the case of the high temperatures that occur temporarily under heavy use.
  • the bellows according to the invention can thus be exposed to increased mechanical loads, but also temperatures, without the risk of damage or failure occurring. If, for the production of the bellows according to the invention, an irreversibly at least partially crosslinked thermoplastic elastomeric material with a degree of crosslinking in a range of about 40% to about 70%, preferably about 45 to about 65%, based on total thermoplastic elastomeric material used for the deformation When used, the bellows made therewith still have sufficient flexibility with simultaneously improved properties for mechanical strength and temperature resistance.
  • FIG. 1 shows a sectional view of a rolling bellows according to the invention, mounted on a joint component
  • FIG. 2 shows a sectional view of a bellows according to the invention mounted on a joint component
  • Fig. 3 is a schematic diagram relating to the irradiation of thermoplastic elastomeric material with electron beams.
  • Fig. 4 an alternative embodiment of the irradiation of the thermoplastic elastomeric material with electron beams.
  • Fig. 1 shows a generally designated by the reference numeral 10 hinge member having a hinge outer housing 33 and an inner joint housing 31 and a shaft 30, wherein the shaft with the outer joint part by means of a rolling bellows 14 a bellows seal 12 is available.
  • the rolling bellows 14 is fastened by means of a binder 29, for example.
  • the rolling bellows usually has an outer collar region 20 which is approximately bead-shaped.
  • the rolling bellows 14 has a bellows wall 13, which is formed as a whole about half-torus, with an inner side 15 and an outer side 17.
  • the rolling bellows 14 is connected to the outer joint housing 33 via the outer collar region 28 by means of a retaining clip 28, wherein the connection is achieved by a clamping of the Retaining ring on the one hand on the hinge housing outer part 33, on the other hand, the outer collar portion 28 takes place.
  • Fig. 2 now shows a bellows 16 which is mounted on a hinge member. Otherwise, the same reference numerals as in FIG. 1 are used in FIG. 2 for the same components.
  • the bellows 16 has a bellows seal 12 and a bellows wall 13, which is accordion-shaped, with an outer wall 17 and an inner wall 15.
  • a first collar portion 18 is disposed on the shaft 30 facing the end, in which case the bellows 16 by means of a holding means 29 , In particular a tensioning band, is mounted on the shaft.
  • a holding means 29 In particular a tensioning band
  • the joint component 10 in this case comprises an outer joint part 33 and an inner joint part 31, wherein the bellows is connected via a connecting means 32 which acts on the outer joint part 33 with the joint housing.
  • the rolling bellows 14 or the bellows 16 have been produced from a thermoplastic elastomer material, in particular a TPEE, which is at least partially crosslinked according to the process of the invention.
  • a thermoplastic elastomer material in particular a TPEE
  • a mixture of uncrosslinked starting material with 50% of irreversibly crosslinked material with a degree of crosslinking of about 60% was used.
  • thermoplastically elastomeric material 38 by means of an electron beam 32. It is emitted by an electron radiation source 30 and directed towards thermoplastic elastomeric material 38, which is arranged on a base 36.
  • the electron source 30 can emit electron beams 32 uniformly or nonuniformly, in particular also pulsed, whereby the energy of the electron beams 32 can also be changed.
  • the thermoplastic elastomeric material 38 is advantageously moved after a first irradiation, ie, its orientation to the electron beam source is changed, so that the most uniform possible crosslinking of the thermoplastic elastomeric material 38 takes place. In this case, this movement of the thermoplastic elastomeric material 38, for example, by the same from the carrier 36, mixture and subsequent rearranging on the carrier 36 can be achieved.
  • Fig. 4 now shows a similar arrangement as in Fig. 3, but here the thermoplastic elastomeric material 38 is guided on a conveyor belt 34 by an electron beam field spanned by the electron beam source 30 by electron beams 32 in the direction of an arrow at a speed v s .
  • the electron beam source 30 in the direction of the other arrow with a
  • Velocity v B s to move, in which case the thermoplastic elastomeric material 38 stationary again directly on a support 36 can be arranged.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Diaphragms And Bellows (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

L’invention concerne un procédé permettant d’obtenir des diaphragmes présentant des propriétés mécaniques améliorées et une meilleure résistance à la température, ledit procédé consistant à réticuler partiellement un matériau polymère thermoplastique de manière irréversible avant la mise en forme du diaphragme.
PCT/EP2006/000664 2005-12-28 2006-01-26 Procede de fabrication de diaphragmes a partir d'un materiau elastomere polymerique reticule WO2007079780A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006003257.7T DE112006003257B4 (de) 2005-12-28 2006-01-26 Verfahren zur Herstellung von Bälgen mit vorvernetztem thermoplastisch elastomerem Material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EPPCT/EP2005/014078 2005-12-28
EP2005014078 2005-12-28

Publications (1)

Publication Number Publication Date
WO2007079780A1 true WO2007079780A1 (fr) 2007-07-19

Family

ID=35986274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/000664 WO2007079780A1 (fr) 2005-12-28 2006-01-26 Procede de fabrication de diaphragmes a partir d'un materiau elastomere polymerique reticule

Country Status (2)

Country Link
DE (1) DE112006003257B4 (fr)
WO (1) WO2007079780A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200101974A (ko) * 2018-01-15 2020-08-28 게케엔 드리펠린 인터나쇼날 게엠베하 벨로즈를 제조하기 위한 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330182A1 (de) * 1993-08-26 1995-03-02 Ntn Toyo Bearing Co Ltd Balgabdichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102971A (en) * 1977-03-14 1978-07-25 The General Tire & Rubber Company Cast annular laminates and method and apparatus for making same
DE3318754A1 (de) * 1983-05-24 1984-12-06 WOCO Franz-Josef Wolf & Co, 6483 Bad Soden-Salmünster Membran und verfahren zu deren herstellung
FR2554533B1 (fr) * 1983-11-08 1989-06-30 Glaenzer Spicer Sa Soufflet elastique de protection d'un joint homocinetique de transmission
ATA95693A (de) * 1993-05-14 1997-11-15 Bifocon Optics Forsch & Entw Linse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330182A1 (de) * 1993-08-26 1995-03-02 Ntn Toyo Bearing Co Ltd Balgabdichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200101974A (ko) * 2018-01-15 2020-08-28 게케엔 드리펠린 인터나쇼날 게엠베하 벨로즈를 제조하기 위한 방법
CN111770830A (zh) * 2018-01-15 2020-10-13 Gkn动力传动国际有限公司 用于制造波纹管的方法
KR102359861B1 (ko) 2018-01-15 2022-02-09 게케엔 드리펠린 인터나쇼날 게엠베하 벨로즈를 제조하기 위한 방법
CN111770830B (zh) * 2018-01-15 2022-05-03 Gkn动力传动国际有限公司 用于制造波纹管的方法
US11326021B2 (en) * 2018-01-15 2022-05-10 Gkn Driveline International Gmbh Producing a bellows

Also Published As

Publication number Publication date
DE112006003257B4 (de) 2016-02-11
DE112006003257A5 (de) 2008-10-30

Similar Documents

Publication Publication Date Title
EP1446062B1 (fr) Dispositif de distraction
EP2193863A1 (fr) Agencement de support destiné à une installation en vue de la fabrication de pièces usinées en utilisant des couches de poudre à l'aide d'un rayonnement électromagnétique ou un rayonnement de particules
DE102004015613A1 (de) Strahlenschutzmaterial auf Silikonbasis
WO2019228789A1 (fr) Dispositif d'échange de chaleur
DE4430130A1 (de) Verfahren zur Herstellung von ineinandergreifenden Metallteilen
DE2550664B2 (de) Verfahren zum Herstellen eines druckmittelführenden Schlauches
EP0186725B1 (fr) Objet formé en PVC
DE112006003257B4 (de) Verfahren zur Herstellung von Bälgen mit vorvernetztem thermoplastisch elastomerem Material
DE2934486A1 (de) Verfahren zur herstellung eines werkstueckes aus einem polymeren werkstoff
EP1145831A1 (fr) Balai d'essuie-glaces et procédé de fabrication d'élastomères vulcanisés
WO2006128403A1 (fr) Materiau electriquement conducteur et procede pour fabriquer un materiau electriquement conducteur
DE102015117754A1 (de) Gleitlagerbuchse mit integrierter Dichtlippe
EP0993922B1 (fr) Procédé pour la fabrication d' objets à partir d'une matière polyfluorcarboniqée poudreuse
DE102020100651A1 (de) Verfahren zur Herstellung eines Bauteils, insbesondere eines Fahrzeugbauteils
DE102015210078A1 (de) Schwingungsdämpfer mit Zuganschlag
DE2458451A1 (de) Verfahren und vorrichtung zur herstellung eines paketes aus uebereinandergelegten, geschlossenen metallbaendern
EP1445566B1 (fr) Anneau d'étanchéité pour four rotatif à chauffage indirect
DE102007053878A1 (de) Wälzgelagerte Rolle
EP3717218B1 (fr) Procédé de fabrication d'un soufflet
DE2258310C3 (de) Sintereisen-Formteil mit einer verschleißfesten Oberflächenschicht und Verwendung eines Mittels zur Herstellung dieser Oberflächenschicht
DE2954186C2 (de) Anordnung zur Modifizierung der Festigkeit eines Kunststoffteiles durch Bestrahlung
WO2005049713A1 (fr) Materiau de protection contre les rayonnements destine a des vetements de protection tels que des tabliers et similaires
EP2461048B1 (fr) Dispositif destiné à la fixation d'un composant sur une pièce de carrosserie d'un véhicule automobile
DE102019200160B4 (de) Verfahren zum Herstellen eines Fahrzeugbauteils und ein solches Fahrzeugbauteil
EP1685946A1 (fr) Procédé de fabrication d'un tuyau à base de polyuréthane thermoplastique

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1120060032577

Country of ref document: DE

REF Corresponds to

Ref document number: 112006003257

Country of ref document: DE

Date of ref document: 20081030

Kind code of ref document: P

WWE Wipo information: entry into national phase

Ref document number: 112006003257

Country of ref document: DE