CH517354A - Methacrylate and/or polybutene materials - for protecting cables against corrosion - Google Patents
Methacrylate and/or polybutene materials - for protecting cables against corrosionInfo
- Publication number
- CH517354A CH517354A CH957567A CH957567A CH517354A CH 517354 A CH517354 A CH 517354A CH 957567 A CH957567 A CH 957567A CH 957567 A CH957567 A CH 957567A CH 517354 A CH517354 A CH 517354A
- Authority
- CH
- Switzerland
- Prior art keywords
- corrosion protection
- against corrosion
- protection compound
- methacrylic acid
- pref
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/28—Non-macromolecular organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
Materials for protecting cables against corrosion, which are placed between the metal cover and an outer plastic cover of the cables, in order to protect the metal cover, consist of (a) 40-90% wt. pref. 65% wt. of a higher ester of methacrylic acid; (b) 0.5-7% wt. pref. 5% wt. of an additive for preventing cold flow; and (c) 10-60% wt. pref. ca. 30% wt. filler. The layer (b) affords excellent protection against corrosion of the metal layer, and ensures a water-tight cable. The material bonds well to the outer plastic covering. Use of active fillers improves the strength of the material without reducing the effectiveness of (b).
Description
Korrosionsschutzmasse für Kabel
Die vorliegende Erfindung betrifft eine Korrosions schutzmasse für Kabel mit einem Metallmantel und einem darüber liegenden Kunststoffmantel, wobei die
Korrosionsschutzmasse zwischen dem Metallmantel und dem Kunststoffmantel angeordnet ist.
Die Korrosionsschutzmasse soll bewirken, ,dass Längswas & rdichtigkeit zwischen dem vorzugsweise ge wellten Metallmantel und dem vorzugsweise aus Poly äthylen bestehenden Kunststoffmantel vorhanden ist, was bedeutet, dass die Korrosionsschutzmasse sowohl an dem Metallmantel als auch am Kunststoffmantel gut haften sollte.
Die bekannten Korrosionschutzmassen bestehen aus einer Bitumenmischung, was zur Folge hat, dass bei Verlegung der Kabel bei tiefen Temperaturen, ungefähr bei 40 C, die dann erstarrte Bitumenmischung bricht, wobei sich diese Brüche 1auf Iden darüber- liegenden Kunststoffmantel ausdehenen können, so dass Kunststoffmantel und Korrosionsschutzmasse den Metallmantel nicht mehr vor Feuchtigkeit schützen kön- nen.
Andere bekannte Korrosionsschutzmassen, beispiels weise aus einer Mischung von Transformatorenöl, Polyisobutylen und Polyvinyläther besitzen wohl eine gute Kältefestigkeit, jedoch weisen sie eine schlechte Kunststoffverträglichkeit, insbesorldere gegenüber Poly äthylen, auf, weshalb auch diese Korrosionsschutzmassen nur in wenigen Fällen Verwendung gefunden haben.
Die Erfindung bezweckt eine Korrosionssdb;utzmasse zu schaffen, die eine gute Kältefestigkeit besitzt, d. h. bei ungefähr -50 0C noch so beschaffen ist, dass beim Verlegen des Kabels in wider Masse keine Brüche auftre- ten können, und die auch bei höheren Temperaturen, ungefähr bis +70 C, noch eine solche Viskosität aufweist, dass sich Ider Metallmantel innerhalb des
Kunststoffmantels nicht verlagert. Darüber hinaus soll Idie Masse gegenüber dem Kunststoffmantel eine gute Kunststoffverträglichkeit besitzen.
Die erfindungsgemässe Korrosionsschutzmasse ist dadurch gekennzeichnet, dass sie 40 bis 90% eines höheren Methacrylsäureesters und/oder eines Polybutens und 10 bis 60 % Füllstoffe enthält.
Vorüeilhaft enthält die Masse ausserdem 0,5 bis 7 % andere synthetische Wachse, z. B. Paraffin, oder natürli che Wachse. Die Herstellung der Korrosionsschutzmasse kann so geschehen, dass nach Erwärmung des
Methacrylsäureesters und/oder Polybutens auf 100 bis
170 C die anderen synthetischen Wachse oder natürli chen Wachse unter Rühren in der erwärmten Masse gelöst wird und anschliessend die Füllstoffe zugegeben werden.
Nahezu unmittelbar nach dem Aufspülen der Korro sionsschutzmasse auf den MetalImantel kann dann der Kunststofffnantel aufgespritzt werden.
Vorzugsweise besteht die Korrosionsschutzmasse aus einer Mischung von annähernd 65 % Methacrylsäure ester und/oder eines Polybutens, annähernd 5 % anderer Wachse und annähernd 30 % Füllstoffe.
Als Methacrylsäureester kann beispielsweise Me thacrylsäureoctylester, Methacrylsäurenonylester oder Methacrylsäuredecylester verwendet werden.
Die Füllstoffe können aus Kreide, Kaolin, Talkum, Aerosil oder Faserstoffen bestehen. Besonders vorteil haft ist dabei die Verwendung von aktiven Füllstoffen die die Festigkeit der Masse stark erhöhen, ohne die Kälteeigenschaften wesentlich zu verschlechtern.
Die erfindungsgemässe Korrosionsschutzmasse hat noch den Vorteil, dass slie auf den Metalirnantei aufge- spült werden kann; es ist kein Extruder oder dergleichen zum Aufbringen der Masse auf den Metallmantel nötig.
Corrosion protection compound for cables
The present invention relates to a corrosion protection compound for cables with a metal jacket and an overlying plastic jacket, wherein the
Corrosion protection compound is arranged between the metal jacket and the plastic jacket.
The anti-corrosion compound is intended to ensure that there is longitudinal watertightness between the preferably corrugated metal jacket and the plastic jacket, which is preferably made of polyethylene, which means that the corrosion protection compound should adhere well to both the metal jacket and the plastic jacket.
The known anti-corrosion compounds consist of a bitumen mixture, which means that when the cables are laid at low temperatures, around 40 ° C, the then solidified bitumen mixture breaks, with these cracks being able to expand onto the plastic jacket lying above, so that plastic jacket and Corrosion protection compound can no longer protect the metal jacket from moisture.
Other known anti-corrosion compounds, for example from a mixture of transformer oil, polyisobutylene and polyvinyl ether, have good cold resistance, but they are poorly compatible with plastics, especially compared to polyethylene, which is why these anti-corrosion compounds have only been used in a few cases.
The aim of the invention is to provide a corrosion protection compound which has good resistance to cold, i.e. H. at around -50 ° C is still such that when the cable is laid against mass, no breaks can occur, and even at higher temperatures, around +70 C, it still has such a viscosity that the metal jacket is within the
Plastic jacket not shifted. In addition, the compound should have good plastic compatibility compared to the plastic jacket.
The corrosion protection compound according to the invention is characterized in that it contains 40 to 90% of a higher methacrylic acid ester and / or a polybutene and 10 to 60% of fillers.
Advantageously, the compound also contains 0.5 to 7% other synthetic waxes, e.g. B. paraffin, or natural waxes. The anti-corrosion compound can be produced in such a way that after the
Methacrylic acid ester and / or polybutene to 100 to
170 C, the other synthetic waxes or natural waxes are dissolved in the heated mass with stirring and then the fillers are added.
Almost immediately after the corrosion protection compound has been rinsed onto the metal jacket, the plastic jacket can then be sprayed on.
The anti-corrosive compound preferably consists of a mixture of approximately 65% methacrylic acid ester and / or a polybutene, approximately 5% other waxes and approximately 30% fillers.
As methacrylic acid esters, for example methacrylic acid octyl ester, methacrylic acid onyl ester or methacrylic acid decyl ester can be used.
The fillers can consist of chalk, kaolin, talc, aerosil or fibers. It is particularly advantageous to use active fillers which greatly increase the strength of the mass without significantly impairing the low-temperature properties.
The corrosion protection compound according to the invention also has the advantage that it can be washed onto the metal part; no extruder or the like is necessary to apply the mass to the metal jacket.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH0059935 | 1966-07-13 | ||
| DEK0062365 | 1967-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH517354A true CH517354A (en) | 1971-12-31 |
Family
ID=25980468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH957567A CH517354A (en) | 1966-07-13 | 1967-07-06 | Methacrylate and/or polybutene materials - for protecting cables against corrosion |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT269966B (en) |
| BE (1) | BE700735A (en) |
| CH (1) | CH517354A (en) |
| DE (2) | DE1640324C3 (en) |
| DK (1) | DK117580B (en) |
| GB (1) | GB1145980A (en) |
| NL (2) | NL6709566A (en) |
| SE (1) | SE329195B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2314563A1 (en) * | 1975-06-12 | 1977-01-07 | Naphtachimie Sa | COMPOSITIONS FOR THE LONGITUDINAL INSULATION OF CONDUCTIVE CABLES |
| DE2742614C2 (en) * | 1977-09-22 | 1983-12-22 | kabelmetal electro GmbH, 3000 Hannover | Overhead cable |
-
0
- NL NL132039D patent/NL132039C/xx active
-
1966
- 1966-07-13 DE DE1640324A patent/DE1640324C3/en not_active Expired
-
1967
- 1967-05-24 DE DE1640694A patent/DE1640694B2/en active Granted
- 1967-06-21 AT AT578967A patent/AT269966B/en active
- 1967-06-28 SE SE09483/67*A patent/SE329195B/xx unknown
- 1967-06-30 BE BE700735D patent/BE700735A/xx unknown
- 1967-07-06 CH CH957567A patent/CH517354A/en not_active IP Right Cessation
- 1967-07-10 NL NL6709566A patent/NL6709566A/xx unknown
- 1967-07-12 DK DK359667AA patent/DK117580B/en unknown
- 1967-07-13 GB GB32223/67A patent/GB1145980A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6709566A (en) | 1968-01-15 |
| DE1640324C3 (en) | 1973-11-29 |
| AT269966B (en) | 1969-04-10 |
| SE329195B (en) | 1970-10-05 |
| DE1640694A1 (en) | 1971-01-14 |
| DE1640324B2 (en) | 1973-05-17 |
| DK117580B (en) | 1970-05-11 |
| NL132039C (en) | 1900-01-01 |
| DE1640324A1 (en) | 1970-10-01 |
| DE1640694C3 (en) | 1974-10-17 |
| DE1640694B2 (en) | 1974-03-14 |
| BE700735A (en) | 1967-12-01 |
| GB1145980A (en) | 1969-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |