DE3035709A1 - Extrudable moisture-crosslinkable mixt. prepn. - by grafting thermoplastic, elastomer or thermoplastic elastomer particles with silane and coating with powdered polymer(s) - Google Patents
Extrudable moisture-crosslinkable mixt. prepn. - by grafting thermoplastic, elastomer or thermoplastic elastomer particles with silane and coating with powdered polymer(s)Info
- Publication number
- DE3035709A1 DE3035709A1 DE19803035709 DE3035709A DE3035709A1 DE 3035709 A1 DE3035709 A1 DE 3035709A1 DE 19803035709 DE19803035709 DE 19803035709 DE 3035709 A DE3035709 A DE 3035709A DE 3035709 A1 DE3035709 A1 DE 3035709A1
- Authority
- DE
- Germany
- Prior art keywords
- polymer
- grafting
- mixture
- thermoplastic
- mixt
- 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- Withdrawn
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 239000002245 particle Substances 0.000 title claims abstract description 8
- 229910000077 silane Inorganic materials 0.000 title claims abstract description 8
- 229920001971 elastomer Polymers 0.000 title claims abstract description 6
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 5
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 5
- 229920002725 thermoplastic elastomer Polymers 0.000 title abstract description 4
- 239000011248 coating agent Substances 0.000 title abstract description 3
- 238000000576 coating method Methods 0.000 title abstract description 3
- 239000000806 elastomer Substances 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000008187 granular material Substances 0.000 claims abstract description 13
- -1 polypropylene Polymers 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000004743 Polypropylene Substances 0.000 claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 claims abstract description 7
- 150000004756 silanes Chemical class 0.000 claims abstract description 5
- 238000004132 cross linking Methods 0.000 claims abstract description 4
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 3
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 229920002959 polymer blend Polymers 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000008247 solid mixture Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 5
- 230000009969 flowable effect Effects 0.000 abstract 1
- 239000012254 powdered material Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 150000002978 peroxides Chemical class 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 2
- 238000012432 intermediate storage Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000004634 feeding behavior Effects 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
-
- 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
- B29K2301/00—Use of unspecified macromolecular compounds as reinforcement
- B29K2301/10—Thermosetting resins
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)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
Verfahren zur Herstellung von extrudierbaren und feuchtigkeitsver-Process for the production of extrudable and moisture-absorbing
netzYsQ Mischungen (Zusatz zu Patent .. (Anm. P 28 32 120.2-16)) Gegenstand des Hauptpatentes ist ein Verfahren zur Herstellung extrudierbarer Mischungen auf der Basis thermoplastischer oder elastomerer Werkstoffe oder thermoplastischer Kautschuke, die durch Aufpfropfen von Silanen auf die Moleküle der Basismaterialien unter Feuchtigkeitseinwirkung vernetzbar sind. Dem riesel-fähigen, pulver- bis granulatförmigen Material wird das Silan und ggf. weitere Zusätze in flüssiger Form sowie am Pfropf- oder Vernetzungsprozeß unbeteiligte Feststoffe während eines Mischprozesses bei Material temperaturen, die bei oder zumindest nicht wesentlich über Raumtemperatur liegen, zugegeben, so daß sie die Oberflächen der Werkstoffteilchen benetzen.netzYsQ mixtures (addendum to patent .. (note P 28 32 120.2-16)) object of the main patent is a process for the production of extrudable mixtures the basis of thermoplastic or elastomeric materials or thermoplastic rubbers, by grafting silanes onto the molecules of the base materials under the action of moisture are networkable. The free-flowing, powdery to granular material is the silane and possibly other additives in liquid form as well as in the grafting or crosslinking process uninvolved solids during a mixing process at material temperatures, which are at or at least not significantly above room temperature, added, see above that they wet the surfaces of the material particles.
Anschließend werden die benetzten Werkstoffteilchen bei im wesentlichen gleichbleibender Materialtemperatur während des Mischprozesses mit einem pulverförmigen Feststoff oder Feststoffgemisch mit großer Oberfläche überzogen. Diese Maßnahme führt zu einer erheblichen Verkürzung der Mischzeit, das behandelte Material kann unmittelbar anschließend zur Weiterverarbeitung, z. B. zur Extrusion, abgegeben werden. Entsprechend der Einfachheit des Mischvorganges können auch im Aufbau einfache Anlagen verwendet werden, die Anschaffungskosten der Geräte zur Durchführung des Verfahrens nach der Erfindung können daher gering gehalten werden. Wegen der kurzfristigen Herstellung der Mischung, die z. B. gleichzeitig mit dem Anfahren einer Extrusionsanlage durchgeführt werden kann, können erhebliche Kosten für eine sonst notwendige Lagerhaltung eingespart werden.The wetted material particles are then essentially at constant material temperature during the mixing process with a powdery one Coated solid or solid mixture with a large surface. This measure leads to a considerable reduction in the mixing time that the treated material can immediately afterwards for further processing, e.g. B. for extrusion, released will. According to the simplicity of the mixing process, simple in structure Attachments used are the cost of devices for Implementation of the method according to the invention can therefore be kept low. Because of the short-term production of the mixture, the z. B. simultaneously with the Starting up an extrusion line can be carried out at considerable cost for otherwise necessary storage can be saved.
Ausgehend von dieser bekannten Maßnahme liegt der Erfindung die Aufgabe zugrunde, das makroskopische Entmischen von flüssigem Silan und Basismaterial - etwa Absetzen von Flüssigkeit unten im Gebinde - nach wie vor zu unterbinden, gleichzeitig aber auch eine wirkungsvolle Verbesserung der Extrudatqualität sicherzustellen.Based on this known measure, the object of the invention is to be found based on the macroscopic demixing of liquid silane and base material - for example, settling of liquid at the bottom of the container - still to be prevented, at the same time but also to ensure an effective improvement in the quality of the extrudate.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß als pulverförmiger Feststoff oder als Feststoffgemisch ein Polymer oder Polymergemisch verwendet wird. Hierdurch ergibt sich eine gleichmäßige und irreversible makroskopische Verteilung der Silankomponente und sonstiger flüssiger Zusätze auf der Granulatoberfläche, das gemischte Material wirkt praktisch trocken. Das Material kann im Extruder in einem Ein-Schritt-Verfahren verarbeitet werden. Die noch notwendige Mischarbeit im Extruder vor Beginn der Pfropfungsphase wird vermindert, damit aber auch die Gefahr von örtlichen Konzentrationsschwankungen an Vernetzungsreagentien und hiermit verbunden.die Zildung von Gel-Partikeln reduziert, Die Fertigungsgeschwindigkeit der Endprodukte kann angehoben werden.This object is achieved according to the invention in that as a powdery Solid or a polymer or polymer mixture is used as a solid mixture. This results in a uniform and irreversible macroscopic distribution the silane component and other liquid additives on the surface of the granulate, the mixed material appears practically dry. The material can be processed in the extruder in processed in a one-step process. The still necessary mixed work in the extruder before the start of the grafting phase is reduced, but also the Risk of local fluctuations in the concentration of crosslinking reagents and herewith the formation of gel particles is reduced, the production speed the final products can be raised.
Vorteilhaft verwendet man in Weiterführung der Erfindung Polymere oder Polymergemische mit einem Schmelzbereich = 1200 C. So hat sich beispielsweise ein Polyäthylen hoher Dichte - etwa ---0>94 g/m3 - als geeignet erwiesen. Das Einzugsverhalten in den Extruder wird verbessert, weil di#e Gleitwirkung der flüssig zugegebenen Komponenten, vor allem des ggf. miteingegebenen Katalysators, gemindert wird. Wesentlich ist ferner eine erhebliche Verringerung der Anzahl sog. Gelstippen auf der- Oberfläche des gespritzten Stranges, z. B. einer Kabelisol--ierung> eines Mantels oder dgl.. Letzteres gilt insbesondere dann, wenn, wie nach der Erfindung weiter vorgesehen, als Polymeres ein isotaktisches Poly- propylen verwendet wird. Dieses Material spricht nämlich auf-den Pfropf-und anschließenden Vernetzungsvorgang bei Feuchtigkeitseinfluß nicht oder zumindest nicht merklich an, so daß sich im Bereich des pulverförmigen Feststoffes unvermeidbare Höherkonzentrationen an Vernetzungsreagentien nicht nachteilig auf die Qualität des Endproduktes auswirken können.In a continuation of the invention, it is advantageous to use polymers or polymer mixtures with a melting range = 1200 C. For example a high density polyethylene - about --- 0> 94 g / m3 - proved to be suitable. That Feeding behavior into the extruder is improved because the sliding action of the liquid added components, especially the possibly also added catalyst, reduced will. A significant reduction in the number of so-called gel specks is also essential on the surface of the sprayed strand, e.g. B. cable insulation> a jacket or the like .. The latter applies in particular when, as according to the invention further provided, an isotactic poly- propylene is used. This material speaks namely on-the graft and subsequent Crosslinking process not or at least not noticeable when exposed to moisture so that there are unavoidable higher concentrations in the area of the powdery solid of crosslinking reagents do not have a detrimental effect on the quality of the end product can.
Das Uberziehen von polymerem Basismaterial bei der Aufbereitung feuchtigkeitsvernetzbarer Mischungen mit pulverförmigen Feststoffen auf Basis Polypropylen führt aber auch zu höheren Extrusionsgeschwindigkeiten. Das hängt im wesentlichen mit dem glatteren Ablösen so behandelter Mischungen von den Metallteilen der Spritz- bzw. Extrusionswerkzeuge zusammen.The coating of polymeric base material in the preparation of moisture-crosslinkable Mixtures with powdered solids based on polypropylene also lead to higher extrusion speeds. That essentially depends on the smoother Detachment of mixtures treated in this way from the metal parts of the injection or extrusion tools together.
Es können auch Polymergemische, wie z. 8. ein Verschnitt aus einem Homopolyolefin oder einem Copolymer mit einem Copolymeranteil bis zu 20 Gew. % und einem teilkristallinen Polymer oder Polymergemisch mit tertiären oder quartären Kohlenstoffatomen verwendet werden. Die Mengen des pulverförmigen Feststoffes oder Feststoffgenisches -werden unabhängig von der oder den verwendeten Materialkomponenten in Durchführung der Erfindung O,i bis 10 Gew. %, vorzugsweise 0,5 bis 1,5 Gew. %, betragen.It can also polymer mixtures, such as. 8. a scrap from one Homopolyolefin or a copolymer with a copolymer content of up to 20% by weight and a partially crystalline polymer or polymer mixture with tertiary or quaternary Carbon atoms are used. The amounts of the powdery solid or Solid mixture - become independent of the material component (s) used in carrying out the invention 0.1 to 10% by weight, preferably 0.5 to 1.5% by weight, be.
Die Erfindung sei im folgenden am Beispiel der Herstellung einer Mischung für die Umhüllung, z. B. Isolierung oder Ummantelung, elektrischer Kabel näher erläutert.The invention is illustrated below using the example of the production of a mixture for the envelope, e.g. B. insulation or sheathing, electrical cables explained in more detail.
Als Basismaterialien können beliebige thermoplastische Werkstoffe, wie Olefinpolymerisate oder Olefinrnischpolymerisate, aber auch Elastomere oder thermoplastische Kautschuke verwendet werden, sofern sie eine Pfropfung oder Anlagerung von Silanen gestatten. Das z. Zt. am häufigsten verwendete Thermoplast dürfte das Polyäthylen sein, im Ausfü-hrungsbeispiel sei deshalb hierauf besonders hingewiesen.Any thermoplastic materials, such as olefin polymers or olefin copolymers, but also elastomers or Thermoplastic rubbers can be used provided they have grafting or agglomeration allow silanes. The Z. This is probably the most commonly used thermoplastic at the moment Be polyethylene, which is why this is particularly pointed out in the exemplary embodiment.
1. Mischungsbeispiel Polyäthylen 100 Teile Antioxidant 0,5 ~#~ Peroxid 0,22 Teile Vinyltrimetoxisilan 2,6 Triallylcyanurat 0,1 Katalysator-Batch (1 %) 5 in Calciumkarbonat 0,8 Nach Abschluß der Mischung überzogen mit HD-Polyäthylen (0,95 9/m3) oder Polypropylen-Pulver 1,5 Die Herstellung einer derartigen Mischung bzw. einer daraus bestehenden Kabelisolierung läuft entsprechend der Erfindung, wie die Figur veranschaulicht, etwa wie folgt ab.1. Mixture example polyethylene 100 parts antioxidant 0.5 ~ # ~ peroxide 0.22 parts vinyl trimetoxysilane 2.6 triallyl cyanurate 0.1 catalyst batch (1%) 5 in calcium carbonate 0.8 When the mixture is complete, coated with HD polyethylene (0.95 9 / m3) or polypropylene powder 1.5 The preparation of such a mixture or a cable insulation consisting of it runs according to the invention, as the figure illustrates, roughly as follows.
In der Mischvorrichtung 1, z. B. einem Mischer-mit einer Drehzahl von 200 - 500 U/min, wird Polyäthylengranulat, etwa über den Anschlußstutzen 2 aus einem Vorrat kommend, eingefüllt. Das Granulat kann bereits den Katalysator-Batch in fein verteilter Form oder notwendige Farbpartikel enthalten, diese können aber auch z. B. durch eine gesonderte öffnung 4 im Deckel der Mischvorrichtung 1 später zugegeben werden.In the mixing device 1, e.g. B. a mixer with one speed from 200 - 500 rpm, polyethylene granulate, for example via the connection piece 2, is made coming from a supply, filled. The granulate can already be the catalyst batch in finely divided form or contain necessary color particles, but these can also z. B. through a separate opening 4 in the lid of the mixing device 1 later be admitted.
Nach Beendigung der Gran!Jlatzufuhr wird die Mischvorrichtung in Gang gesetzt und gleichzeitig oder wenig später über die Zuführung 3 die das Silan und die übrigen Zusätze, wie Antioxidantien, Peroxide etc., enthaltende Lösung eingegeben. Bei weiterem Umlauf der Granulatkörner für z. B. 2 bis 3 min. wird die Lösung auf die Granulatkörner oberflächlich aufgetrommelt, wobei die durchschnittliche Massetemperatur kaum über Raumtemperatur ansteigt. Unmittelbar anschließend wird über die öffnung 4 der Feststoff, im vortiegenden Beispiel isotaktisches Polypropylen in Pulverfoim, eingegeben und innerhalb einer Mischdauer von ca. 3 min. auf die feuchte Granulatoberfläche aufgebracht. Sind z. B. 1,5 - 2,2 Liter Silan-Rea(uentien auf 100 kg zu vernetzendes Granulat zudosiert, so läßt sich diese Menge mit ca. 2 % Pulver so gut an der Granulatoberfläche festhalten, daß die makroskopische Entmischung unterbunden ist. Das gemischt& Material wirkt praktisch trocken.After the granules have been fed in, the mixing device starts up set and at the same time or a little later via the feed 3 which the silane and the other additives, such as antioxidants, peroxides, etc., entered solution containing. With further circulation of the granules for z. B. 2 to 3 minutes. The solution is on the granules tumbled on the surface, the average mass temperature hardly rises above room temperature. Immediately afterwards it is over the opening 4 the solid, in the previous example isotactic polypropylene in powder form, entered and within a mixing time of approx. 3 minutes on the moist granulate surface upset. Are z. B. 1.5 - 2.2 liters of Silan-Rea (uentien to 100 kg to be crosslinked If granules are metered in, this amount can be applied to the surface of the granules with about 2% powder note that the macroscopic segregation is prevented. The mixed & Material looks practically dry.
Da im dargestellten Ausführungsbeispiel das so vorbereitete Material unmittelbar anschließend, also ohne Zwischenlagerung, weiterverarbeitet werden kann, wird das Granulat über den Rüssel 5 dem Extrudertrichter 6 zugeführt und von dort über die Schnecke eingezogen. Der-Extru; der 7, entsprechend dem vorliegenden Material ausgebildet, sorgt zunächst für die Aufschmelzung des bereits gemischten Materials und anschließend für die Aufpfropfung des Silans, bevor im Kopf 8 die Ausformung über dem durchlaufenden Leiter 9 erfolgt Anschließend kann die Vernetzung der Isolierung in bekannter Weise unter Feuchtigkeitseinwirkung durchgeführt werden.Since in the illustrated embodiment the material prepared in this way can be further processed immediately afterwards, i.e. without intermediate storage, the granulate is fed to the extruder funnel 6 via the trunk 5 and from there pulled in over the auger. The-extru; 7, according to the present material formed, first ensures that the already mixed material is melted and then for the grafting of the silane before the molding in the head 8 The insulation can then be crosslinked via the continuous conductor 9 be carried out in a known manner under the action of moisture.
Wie bereits ausgeführt, können für den gleichen Zweck neben Polyäthylen auch andere Basismaterialien verwendet werden. Es ist eine Frage des Einsatzes und der dadurch bedingten Forderung nach bestimmten Eigenschaften, die für den einen oder anderen Werkstoff sprechen.As already stated, in addition to polyethylene can be used for the same purpose other base materials can also be used. It's a matter of commitment and the resulting demand for certain properties that are for the one or talk about another material.
Es sei deshalb noch auf folgende Mischungsbeispiele verwiesen, die nach dem Verfahren nach der Erfindung vorteilhaft für die Extrusion oder Zwischenlagerung vorbereitet werden können: II. Mischungsbeispiel TPR-Kautschuk 100 Teile Peroxid oder -verschnitt 0,2 Vinyltrimethoxisilan 1,4 Katalysator 0>06 Alterungsschutzmittel 0,35 Polypropylenpulver 1,0 III. Mischungsbeispiel EP-Kautschuk 100 Teile Polypropylen 40 Vinyltrimethoxisilan 1,0 Peroxide 0,21 Katalysator 0,05 Alterungsschutzmittel 0,2 #1D-Polyäthylen (0,94 g/m3) in Pulverform 0,8 LeerseiteReference is therefore made to the following mixture examples, which according to the method according to the invention advantageous for extrusion or intermediate storage can be prepared: II. Mixing example TPR rubber 100 parts peroxide or blend 0.2 vinyltrimethoxysilane 1.4 catalyst 0> 06 anti-aging agent 0.35 polypropylene powder 1.0 III. Mixture example EP rubber 100 parts of polypropylene 40 Vinyltrimethoxysilane 1.0 Peroxides 0.21 Catalyst 0.05 Anti-aging agent 0.2 # 1D polyethylene (0.94 g / m3) in powder form 0.8 Blank page
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803035709 DE3035709A1 (en) | 1978-07-21 | 1980-09-22 | Extrudable moisture-crosslinkable mixt. prepn. - by grafting thermoplastic, elastomer or thermoplastic elastomer particles with silane and coating with powdered polymer(s) |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2832120A DE2832120C3 (en) | 1978-07-21 | 1978-07-21 | Process for the production of extrudable mixtures based on thermoplastic or elastomeric substances or thermoplastic rubbers which can be crosslinked by grafting silanes onto the molecules of the base materials under the action of moisture |
| DE19803035709 DE3035709A1 (en) | 1978-07-21 | 1980-09-22 | Extrudable moisture-crosslinkable mixt. prepn. - by grafting thermoplastic, elastomer or thermoplastic elastomer particles with silane and coating with powdered polymer(s) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3035709A1 true DE3035709A1 (en) | 1982-04-29 |
Family
ID=25775115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803035709 Withdrawn DE3035709A1 (en) | 1978-07-21 | 1980-09-22 | Extrudable moisture-crosslinkable mixt. prepn. - by grafting thermoplastic, elastomer or thermoplastic elastomer particles with silane and coating with powdered polymer(s) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3035709A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134941A1 (en) * | 1983-07-28 | 1985-03-27 | Hüls Troisdorf Aktiengesellschaft | Process for producing semi-manufactured articles, particularly polypropylene mouldings |
| EP0412518A2 (en) * | 1989-08-08 | 1991-02-13 | Union Carbide Chemicals And Plastics Company, Inc. | Thermoplastic olefins |
| DE4113063A1 (en) * | 1991-04-22 | 1992-10-29 | Continental Ag | Thermoplastic elastomers and process for their preparation |
| EP1148518A1 (en) * | 2000-04-17 | 2001-10-24 | Nexans | A process for producing cross-linked polyethylene coated conducting wires |
| EP0695320B2 (en) † | 1993-04-23 | 2001-12-12 | Bernhard Rustige GmbH und Co. Kommanditgesellschaft | Method for the extrusion of a cross-linked polymer |
| WO2006010291A1 (en) * | 2004-07-30 | 2006-02-02 | Pep Ag | Method for mixing a plastic granulate with an additive and mixing device for carrying out said method and device provided with said mixing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3669722A (en) * | 1969-06-25 | 1972-06-13 | Copolymer Rubber & Chem Corp | Free flowing pellets of uncured elastomeric material |
| DE2832120A1 (en) * | 1978-07-21 | 1980-01-31 | Kabel Metallwerke Ghh | Extrudable mixt. crosslinkable by moisture - obtd. by cold-mixing silane and powder additive with polymer, used esp. for cable jacket |
-
1980
- 1980-09-22 DE DE19803035709 patent/DE3035709A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3669722A (en) * | 1969-06-25 | 1972-06-13 | Copolymer Rubber & Chem Corp | Free flowing pellets of uncured elastomeric material |
| DE2832120A1 (en) * | 1978-07-21 | 1980-01-31 | Kabel Metallwerke Ghh | Extrudable mixt. crosslinkable by moisture - obtd. by cold-mixing silane and powder additive with polymer, used esp. for cable jacket |
| DE2832120C3 (en) * | 1978-07-21 | 1982-10-14 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Process for the production of extrudable mixtures based on thermoplastic or elastomeric substances or thermoplastic rubbers which can be crosslinked by grafting silanes onto the molecules of the base materials under the action of moisture |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134941A1 (en) * | 1983-07-28 | 1985-03-27 | Hüls Troisdorf Aktiengesellschaft | Process for producing semi-manufactured articles, particularly polypropylene mouldings |
| EP0412518A2 (en) * | 1989-08-08 | 1991-02-13 | Union Carbide Chemicals And Plastics Company, Inc. | Thermoplastic olefins |
| EP0412518A3 (en) * | 1989-08-08 | 1992-04-22 | Union Carbide Chemicals And Plastics Company, Inc. | Thermoplastic olefins |
| DE4113063A1 (en) * | 1991-04-22 | 1992-10-29 | Continental Ag | Thermoplastic elastomers and process for their preparation |
| EP0695320B2 (en) † | 1993-04-23 | 2001-12-12 | Bernhard Rustige GmbH und Co. Kommanditgesellschaft | Method for the extrusion of a cross-linked polymer |
| EP1148518A1 (en) * | 2000-04-17 | 2001-10-24 | Nexans | A process for producing cross-linked polyethylene coated conducting wires |
| US6645411B2 (en) | 2000-04-17 | 2003-11-11 | Nexans | Process for the production of conducting wires coated with cross-linked polyethylene |
| WO2006010291A1 (en) * | 2004-07-30 | 2006-02-02 | Pep Ag | Method for mixing a plastic granulate with an additive and mixing device for carrying out said method and device provided with said mixing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69029918T2 (en) | Feed solid silane crosslinking agent in an extruder | |
| DE2554525C2 (en) | Manufacture of extruded products | |
| DE69910612T3 (en) | METHOD FOR THE PRODUCTION OF PELLETIZED POLYOLEFIN | |
| DE2642927A1 (en) | METHOD OF MANUFACTURING EXTRUDED PRODUCTS | |
| DE10159952A1 (en) | Use of liquid or unsaturated organosilane / mixtures applied on carrier material for the production of moisture-crosslinked and filled cable compounds | |
| DE2711260A1 (en) | METHOD OF MANUFACTURING COATED ELECTRICAL CABLES | |
| DE2635957A1 (en) | PROCESS FOR THE PRODUCTION OF FILMS OR SHEETS MADE FROM A MIXTURE OF VEGETABLE FIBERS AND POLYOLEFINS | |
| DE68923096T2 (en) | Thermoplastic composition and method of making it. | |
| WO1994025509B1 (en) | Method and device for the extrusion of a cross-linked polymer | |
| EP0695320B1 (en) | Method for the extrusion of a cross-linked polymer | |
| DE69914175T2 (en) | Thermoplastic composition and method of making the same | |
| EP0211154B1 (en) | Impact-resistant cured objects made of ternary polyolefinic moulding compositions, and their preparation | |
| DE3035709A1 (en) | Extrudable moisture-crosslinkable mixt. prepn. - by grafting thermoplastic, elastomer or thermoplastic elastomer particles with silane and coating with powdered polymer(s) | |
| US4302410A (en) | Method producing a color coded, cellular thermoplastic resin coated wire and the materials necessary for the coating | |
| DE1495275A1 (en) | Process for the controlled thermal degradation of thermoplastics | |
| DE2832120C3 (en) | Process for the production of extrudable mixtures based on thermoplastic or elastomeric substances or thermoplastic rubbers which can be crosslinked by grafting silanes onto the molecules of the base materials under the action of moisture | |
| DE2125430A1 (en) | Production of ethylene / propylene rubbers in granulate form | |
| DE2736003C2 (en) | Process for the production of extrudable and moisture-crosslinkable rubber-like thermoplastics | |
| EP0938522A2 (en) | Method for producing a thermoplastic elastomer material | |
| DE2554944A1 (en) | Modified moisture-crosslinked thermoplastic rubbers - contain graftable cpds. e.g. silanes and/or are adducts formed with cpds. contg. e.g. silicon hydride gps. | |
| DE2856381A1 (en) | Prepn. of filled polyethylene compsn. crosslinking with silane - by diffusion of silane into dry granulate of filler and polymer | |
| DE2458776A1 (en) | Silane crosslinked thermoplastic or elastomeric compsn. - for cable jackets, by mixing, degassing and immediately shaping | |
| DE602004010999T2 (en) | A method of removing volatile components from a filled thermoplastic polymer | |
| DE2529260C2 (en) | ||
| DE3502993C2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AF | Is addition to no. |
Ref country code: DE Ref document number: 2832120 Format of ref document f/p: P |
|
| AF | Is addition to no. |
Ref country code: DE Ref document number: 2832120 Format of ref document f/p: P |
|
| 8127 | New person/name/address of the applicant |
Owner name: KABELMETAL ELECTRO GMBH, 3000 HANNOVER, DE |
|
| 8110 | Request for examination paragraph 44 | ||
| 8130 | Withdrawal |