EP2069424A2 - Procédé de production d'un produit polymère extrudé, de préférence réticulé - Google Patents

Procédé de production d'un produit polymère extrudé, de préférence réticulé

Info

Publication number
EP2069424A2
EP2069424A2 EP07800672A EP07800672A EP2069424A2 EP 2069424 A2 EP2069424 A2 EP 2069424A2 EP 07800672 A EP07800672 A EP 07800672A EP 07800672 A EP07800672 A EP 07800672A EP 2069424 A2 EP2069424 A2 EP 2069424A2
Authority
EP
European Patent Office
Prior art keywords
additives
polymer
processed
carrier material
masterbatch
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Withdrawn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
EP07800672A
Other languages
German (de)
English (en)
Inventor
Werner Kempter
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.)
Silon Sro Plana Nad Lu'znici
Original Assignee
Silon Sro Plana Nad Lu'znici
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 Silon Sro Plana Nad Lu'znici filed Critical Silon Sro Plana Nad Lu'znici
Publication of EP2069424A2 publication Critical patent/EP2069424A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • 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
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • 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
    • B29K2301/00—Use of unspecified macromolecular compounds as reinforcement
    • B29K2301/10—Thermosetting resins

Definitions

  • the invention relates to a process according to the preamble of claim 1 for the preparation of a preferably crosslinked, extruded polymer product.
  • EP-A-695320 relates to a process for producing a crosslinked, extruded one
  • Polymer product wherein the polymer to be crosslinked with liquid additives by extrusion in a continuous casting apparatus is processed.
  • the porous base material only part of the polymer material to be crosslinked is used as the porous base material.
  • the remainder of the material to be crosslinked is used for cost reasons as non-fissured material.
  • the fissured material is mixed with the liquid additive which serves to crosslink immediately prior to processing. This mixture is then mixed with conventional, non-fissured material directly in the plant and then processed in the screw extruder.
  • a disadvantage of the method is that not only the liquid additive, but also all other additives must be added simultaneously.
  • the manufacturer of the cross-linked polymer product must obtain the various starting materials (additives, additives) from different manufacturers.
  • thermoplastic base polymers in pourable form with also pourable, dispersible or soluble in the base polymers carrier polymers mixed with a crosslinking agent.
  • porous carrier polymers which have at least one organic peroxide and / or coagent introduced as a silane-free crosslinking agent into the fine-pored structure are mixed into the base polymers.
  • US 4,783,511 describes a process for the production of extruded bodies thermoplastic polyamide in which polyamide is thoroughly mixed with a masterbatch and converted in a known manner to an extruded body.
  • the masterbatch consists of a carrier material which has a good absorption capacity for silane, is compatible with the polyamide and does not lead to a deterioration of the product quality.
  • various methods are proposed: The first method is the melt of a polyolefin loaded directly with the silane, extruded as a strand and comminuted into granules, which is dried thoroughly.
  • a silane swellable carrier material in the form of grains or coarse powder is used, which is contacted directly with silane.
  • Prerequisite for the applicability of this method is that the material
  • a thermoplastic in the form of a sponge with open pores, but which does not swell with silane is used.
  • the open-pored carrier materials have the property that they can be loaded with an amount of silane which corresponds to a multiple of the intrinsic weight of the carrier material. Disadvantages of the third method are the relatively high costs for the production of the microporous polymer system.
  • GB-A-2170206 describes a process for producing a crosslinked
  • the object of the present invention is to provide a method in which the Effort for the metered addition of the liquid reagent and the additives is reduced. Another goal is to achieve the best possible mixing of all raw materials so that the quality of the finished product is as high as possible.
  • This process has the advantage that the preparation of the polymer product is greatly simplified because the masterbatch so provided has at the same time a good absorption capacity for the liquid reagent. Consequently, in the actual Ver
  • the method also has the advantage that the manufacturer of the polymer product no longer has to buy and add the additives separately because they are already contained in the prefabricated mixture.
  • the silane is added to the base material and not to the masterbatch.
  • the carrier material of the masterbatch has no fissured or open-pored surface.
  • the carrier material with the liquid reagent and the additives is advantageously processed to form a masterbatch with an open-pored or fissured surface and then added directly to the continuous casting or injection molding apparatus, like the base material, and processed with the base material.
  • This has the advantage that all additional components are homogeneously mixed with the base material, whereby a consistent quality of the finished polymer product is guaranteed.
  • the material with an open-pored or fissured surface ensures good distribution of the liquid reagent. It is also conceivable to process the carrier material with the additives and the liquid reagent to form a masterbatch with an open-pored or fissured surface and then to meter it directly onto the continuous casting or injection molding apparatus, like the base material, and process it with the base material.
  • This process has the advantage that the masterbatch contains both the additives and also the reactive reagent.
  • the reaction mixture before entering the Continuous casting or injection molding additionally mixed.
  • This has the advantage that the reaction mixture to be processed in the continuous casting or injection molding apparatus is homogeneous.
  • Components such as stabilizers, fillers, lubricants, reinforcing agents, catalysts, processing aids, etc. used.
  • stabilizers for example, antioxidants, Lichtuschutzmttel and / or réelleschutzmirtel be used.
  • lubricants and processing aids often acid amides, fatty acid esters, fatty alcohols, metal soaps, silicone derivatives and / or fluorine compounds are used.
  • Other additives include color pigments and / or inorganic pigments.
  • a maximum of 25 percent by weight, preferably not more than 12, and most preferably not more than 5 percent by weight of the carrier material with a fissured surface or open-pore structure are used.
  • the cost of producing the crosslinked polymer product can be minimized.
  • more or less carrier material is used in the formulation.
  • the carrier material is made of the same polymer as the polymer to be crosslinked.
  • the carrier material is produced from a chemically different polymer such as the polymer to be crosslinked.
  • the polymers each consist of unsaturated hydrocarbons such as polyethylene (PP and HDPE), polypropylene, polyamide and the like. This results in further possibilities in the production of the crosslinked polymer product, for example when the support material has a different reactivity than the base material.
  • the carrier material is made of the same polymer as the base material. It has surprisingly been found in experiments that the finished polymer product generally crosslinks to a higher percentage than when the base material and support material are made from different starting polymers. Depending on the application, however, it may also make sense Support material and base material are made of chemically different polymers.
  • the carrier material with a fissured surface or open-pore structure without additives has a bulk density of between about 0.1 and 0.55 g / cm 3.
  • Stabilizers, fillers, reinforcing materials, catalysts, processing aids such as lubricants, etc. can be used as additives.
  • the process can be used particularly advantageously if the liquid reagent is a reactive compound which can serve to crosslink the polymer.
  • the liquid reagent e.g. Silane or mixtures of silane and other compounds are used.
  • Silane is used, for example, to crosslink unsaturated polymers.
  • the additives used in the process are used to influence properties of the finished polymer product such as conductivity, flame retardance, abrasion resistance, structural behavior, colors, etc.
  • the first mixture can be prepared far away from the screw extruder or continuous casting apparatus and the user gets at least the additional components mixed with the carrier material as a ready-made mixture. This significantly facilitates the handling.
  • the fissured or open-pored material is mechanically produced.
  • a mixing device as can be used for metering a liquid additive, is disclosed, for example, in WO 2006/010291, the contents of which are hereby incorporated by reference
  • the mixing device allows the continuous or discontinuous metered addition of a liquid additive to a bulk material (granules or powder).
  • a bulk material granules or powder
  • it is the plastic used as a carrier material granules respectively.
  • the rugged surface (enlarged surface) makes for a big one Absorbance for the liquid.
  • An open-pore structure results in a high absorbency of the material.
  • the amount of carrier material for the auxiliaries is generally chosen so as to ensure optimal mixing and absorption capacity for the liquid additive. In general, the total amount of the excipients and additives provided carrier material will be in the range between 3 and 15, preferably 3 and 12 percent by weight based on the total weight of the finished product. After metering in the liquid additive, the carrier material provided with the additives is mixed with the base material and extruded.
  • the carrier material containing the additives has at the same time a good absorption capacity for a liquid additive, such as e.g. Silane.
  • the offset with the additives carrier material is first mechanically rugged or foamed in the art known manner. Thereafter, the fissured or open-pored carrier material is mixed with the base material and the liquid reagent is added. The resulting reaction mixture is then preferably mixed again in a mixer before it is introduced into the continuous casting or injection molding apparatus.
  • At least one liquid additive (reagent) and further additives are metered in and subsequently processed in a continuous casting or injection molding apparatus to form the end product.
  • the additives are mixed with a suitable carrier material with a fissured surface or open-pored structure and a masterbatch is produced.
  • the masterbatch is then mixed with the base material and the liquid additive added. It is conceivable to meter in the liquid additive to the masterbatch and to mix this mixture with the base material.
  • the thus provided reaction mixture is processed in the continuous casting or injection molding apparatus to the desired product.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de production d'un produit polymère, de préférence réticulé, à partir d'un polymère de départ, procédé dans lequel au moins un additif liquide et d'autres adjuvants sont ajoutés en quantités dosées audit polymère de départ, puis sont traités de manière à obtenir un produit final, dans un dispositif de coulée en continu ou de moulage par injection. Les adjuvants sont tout d'abord mélangés avec un matériau support approprié, à surface fissurée ou à structure à pores ouverts, après quoi l'additif liquide est ajouté. Ce mélange est ensuite homogénéisé et traité avec le matériau de base, directement en amont du dispositif de coulée en continu ou de moulage par injection.
EP07800672A 2006-10-04 2007-10-02 Procédé de production d'un produit polymère extrudé, de préférence réticulé Withdrawn EP2069424A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH15752006 2006-10-04
CH11332007 2007-07-13
PCT/CH2007/000486 WO2008040139A2 (fr) 2006-10-04 2007-10-02 Procédé de production d'un produit polymère extrudé, de préférence réticulé

Publications (1)

Publication Number Publication Date
EP2069424A2 true EP2069424A2 (fr) 2009-06-17

Family

ID=39146863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07800672A Withdrawn EP2069424A2 (fr) 2006-10-04 2007-10-02 Procédé de production d'un produit polymère extrudé, de préférence réticulé

Country Status (4)

Country Link
US (1) US20100140843A1 (fr)
EP (1) EP2069424A2 (fr)
MA (1) MA30769B1 (fr)
WO (1) WO2008040139A2 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247498A (en) * 1976-08-30 1981-01-27 Akzona Incorporated Methods for making microporous products
US4783511A (en) * 1984-10-29 1988-11-08 Ems-Inventa Ag Process for preparing moulded bodies from modified thermoplastic polyamides
DE3502993A1 (de) * 1985-01-30 1986-07-31 kabelmetal electro GmbH, 3000 Hannover Verfahren zur herstellung von extrudierbaren mischungen
IT1240647B (it) * 1990-05-14 1993-12-17 Himont Inc Concentrati non estrusi di addittivi, cariche o pigmenti
DE4313290A1 (de) * 1993-04-23 1994-10-27 Kempter Werner Verfahren und Vorrichtung zur Herstellung eines vernetzten extrudierten Polymerproduktes
CH685877A5 (de) * 1993-11-03 1995-10-31 Brugg Ag Kabelwerke Verfahren zur Herstellung von Formteilen aus vernetzten Polymeren
US7928258B2 (en) * 2004-08-20 2011-04-19 Momentive Performance Materials Inc. Cyclic diol-derived blocked mercaptofunctional silane compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008040139A3 *

Also Published As

Publication number Publication date
US20100140843A1 (en) 2010-06-10
MA30769B1 (fr) 2009-10-01
WO2008040139A3 (fr) 2008-10-16
WO2008040139A2 (fr) 2008-04-10

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