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DE1096595B - Process for the conversion of polymers from unsaturated hydrocarbons with 2 to 6 carbon atoms or copolymers from predominant amounts of these hydrocarbons with small amounts of other unsaturated compounds which can be polymerized under the same conditions in the form of flakes or flakes - Google Patents

Process for the conversion of polymers from unsaturated hydrocarbons with 2 to 6 carbon atoms or copolymers from predominant amounts of these hydrocarbons with small amounts of other unsaturated compounds which can be polymerized under the same conditions in the form of flakes or flakes

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Publication number
DE1096595B
DE1096595B DEB42674A DEB0042674A DE1096595B DE 1096595 B DE1096595 B DE 1096595B DE B42674 A DEB42674 A DE B42674A DE B0042674 A DEB0042674 A DE B0042674A DE 1096595 B DE1096595 B DE 1096595B
Authority
DE
Germany
Prior art keywords
flakes
hydrocarbons
polymers
unsaturated
amounts
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.)
Pending
Application number
DEB42674A
Other languages
German (de)
Inventor
Dr Fritz Hanusch
August Seckel
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB42674A priority Critical patent/DE1096595B/en
Publication of DE1096595B publication Critical patent/DE1096595B/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/12Powdering or granulating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/16Nitrogen-containing compounds
    • C08K5/20Carboxylic acid amides

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

Verfahren zur Uberführung von Polymerisaten aus ungesättigten Kohlenwasserstoffen mit 2 bis 6 Kohlenstoffatomen oder Mischpolymerisaten aus überwiegenden Mengen dieser Kohlenwasserstoffe mit geringen Mengen anderer unter gleichen Bedingungen polymerisierbarer, ungesättigter Verbindungen in die Form von Flocken oder Schuppen Es wurde gefunden, daß man Polymerisate aus ungesättigten Kohlenwasserstoffen mit 2 bis 6 Kohlenstoffatomen oder Mischpolymerisaten aus überwiegenden Mengen dieser Kohlenwasserstoffe mit geringen Mengen anderer unter gleichen Bedingungen polymerisierbarer, ungesättigter Verbindungen in die Form von Flocken oder Schuppen bringen kann, wenn man in die in einem Kneter durch Reibungswärme weichgemachten Polymerisate 0,1 bis 301, eines oxalkylierten Fettsäureamids, das sich von einer Fettsäure mit einer Kohlenstoffatomanzahl zwischen 12 und 22 ableitet, mechanisch einarbeitet. Process for the conversion of polymers from unsaturated hydrocarbons with 2 to 6 carbon atoms or copolymers from predominant amounts of these Hydrocarbons with small amounts of other polymerizable under the same conditions, unsaturated compounds in the form of flakes or scales It has been found that one polymers of unsaturated hydrocarbons having 2 to 6 carbon atoms or copolymers made from predominant amounts of these hydrocarbons with small amounts Amounts of other unsaturated compounds which can be polymerized under the same conditions in the form of flakes or scales if you put them in a kneader Polymerisate 0.1 to 301 plasticized by frictional heat, an alkoxylated one Fatty acid amide, which is different from a fatty acid with a number of carbon atoms between 12 and 22 derives, mechanically incorporated.

Geeignete Polymerisate sind z.B. solche des Äthylens, Propylens, Butylens und Isobutylens, ferner des Butadiens und Isoprens und Dimethylbutadiens sowie Mischpolymerisate aus mehreren dieser Stoffe wie auch aus überwiegenden Mengen der genannten Kohlenwasserstoffe und geringeren Mengen anderer unter den gleichen Bedingungen polymerisierbarer, ungesättigter Verbindungen, wie Styrol, Acrylnitril, Acrylester, Methacrylester oder Vinylester. Suitable polymers are e.g. those of ethylene, propylene, Butylene and isobutylene, also butadiene and isoprene and dimethylbutadiene as well as copolymers from several of these substances as well as from predominant quantities of said hydrocarbons and lesser amounts of others among the same Conditions of polymerizable, unsaturated compounds such as styrene, acrylonitrile, Acrylic ester, methacrylic ester or vinyl ester.

Bei diesen Polymerisaten besteht häufig der Wunsch, sie in Flocken- oder Schuppenform überzuführen. Ferner macht es häufig Schwierigkeiten, derartige Polymere vor ihrer Verarbeitung auf Formkörper gleichmäßig zu färben oder mit Füllstoffen zu versetzen. Versetzt man die in üblicher Weise thermisch plastifizierten Polymerisate, die in diesem Zustand meist zähflüssige bis zähe, zusammenhängende Massen darstellen, mit den erforderlichen Farbstoffen, vorzugsweise Pigmenten, oder Füllstoffen oder eventuell auch anderen Zusatzstoffen, so bereitet es Schwierigkeiten, sie aus den verwendeten Apparaten, vorzugsweise Knetapparaten, auszutragen. With these polymers there is often a desire to use them in flake or shed form. Furthermore, it often makes difficulties such To color polymers evenly before processing them on moldings or with fillers to move. If the conventionally thermally plasticized polymers are added, which in this state usually represent viscous to viscous, coherent masses, with the necessary dyes, preferably pigments, or fillers or possibly also other additives, so it is difficult to get them out of the Apparatus used, preferably kneading apparatus, to be discharged.

Sie werden im übrigen auch nur in einer unbequem zu handhabenden und weiterzuverarbeitenden Form dabei erhalten.They are also only inconvenient to use and inconvenient received form to be further processed.

Gemäß der Erfindung werden diese Schwierigkeiten behoben. Setzt man den in einem Kneter durch Reibungswärme erweichten Polymerisaten eine geringe Menge eines oxalkylierten Fettsäureamids, beispielsweise etwa 0,1 bis 3ovo, zu, so teilt sich die Schmelze oder der zähflüssige Teig alsbald in grobe, unregelmäßig geformte Flocken oder Schuppen auf. Die Energieaufnahme des Kneters fällt dabei stark ab. Die Flocken oder Schuppen können leicht aus dem Kneter entnommen und unmittelbar verpackt und versandt werden. Sie sind in dieser Form leicht zu handhaben, transportierbar und auf Formkörper verarbeitbar. Wenn man die oxalkylierten Fettsäureamide den Polymerisaten zusetzt, bevor diese in dem Kneter durch die Reibungswärme plastifiziert worden sind, also beispielsweise vor Beginn der Knetung zusetzt, so tritt praktisch kein Kneteffekt und keine Plastifizierung ein, sondern im Falle, daß man beispielsweise die Polymerisate in körniger Form verwendet hat, bleiben die Körner intakt, und die Knetflügel wirken lediglich wie Mischer. Die Temperatur im Kneter steigt nicht, und die Energieaufnahme des Kneters ist sehr genng. According to the invention, these difficulties are overcome. If you set a small amount of the polymers softened by frictional heat in a kneader an alkoxylated fatty acid amide, for example about 0.1 to 3ovo, so allocates The melt or the viscous dough soon turns into coarse, irregularly shaped Flakes or flakes. The energy consumption of the kneader drops sharply. The flakes or flakes can easily be removed from the kneader and taken immediately packed and shipped. They are easy to handle and transport in this form and processable on moldings. If you the alkoxylated fatty acid amides the polymers before they have been plasticized in the kneader by the frictional heat are, for example, clogged before the start of kneading, practically nothing occurs Kneading effect and no plasticization, but in the event that one, for example has used the polymers in granular form, the grains remain intact, and the Kneading blades only act like mixers. The temperature in the mixer does not rise, and the energy consumption of the kneader is very low.

Die den plastifizierten Polymerisaten zuzusetzenden oxalkylierten Fettsäureamide leiten sich von Fettsäuren mit 12 bis 22 Kohlenstoffatomen ab. Geeignete Fettsäuren hierfür sind beispielsweise Palmitin-, Stearin- und Arachinsäure, ferner ungesättigte Fettsäuren, z. B. Olein-und Ricinolsäure. Die oxalkylierten Amide ungesättigter Fettsäuren eignen sich besonders gut. Man verwendet diese Fettsäureamide in Mengen von etwa 0,1 bis 301,, vorzugsweise 0,5 bis 1 O/o. The alkoxylated ones to be added to the plasticized polymers Fatty acid amides are derived from fatty acids with 12 to 22 carbon atoms. Suitable Fatty acids for this purpose are, for example, palmitic, stearic and arachidic acid, as well unsaturated fatty acids, e.g. B. oleic and ricinoleic acid. The alkoxylated amides are more unsaturated Fatty acids are particularly good. These fatty acid amides are used in quantities from about 0.1 to 301, preferably 0.5 to 10 / o.

Beispiel 1 In einem »Werner & Pfleiderer«-Kneter (Bauart GK 5) werden 5,5 kg Polyäthylen von einem durchschnittlichen Molekulargewicht von 50 000 etwa 5 Minuten lang intensiv geknetet. Dem dabei erhaltenen einheitlichen teigartigen Kneterinhalt setzt man unter weiterem Kneten 27,5 g oxäthyliertes Ölsäureamid (Ölsäureäthanolamid) zu. Die Energieaufnahme des Kneters sinkt stark ab, und die zähe Masse zerteilt sich in unregelmäßig ausgebildete Flocken oder Schuppen von 1 bis 5 cm Größe. Example 1 In a »Werner & Pfleiderer« kneader (type GK 5) 5.5 kg of polyethylene with an average molecular weight of 50,000 are used Kneaded intensely for about 5 minutes. The resulting uniform dough-like The contents of the kneader are set with further kneading 27.5 g of oxethylated oleic acid amide (oleic acid ethanolamide) to. The energy consumption of the kneader drops sharply, and the tough The mass divides into irregularly shaped flakes or scales from 1 to 5 cm size.

Vergleichsweise wird Ölsäureamid an Stelle von Ölsäureäthanolamid unter sonst - gleichen - Bedingungen gleichmäßig in der zähen Masse v:on Polyäthylen verteilt. For comparison, oleic acid amide is used in place of oleic acid ethanolamide under otherwise - identical - conditions uniform in the viscous mass of polyethylene distributed.

Der teigige Zustand des Kunststoffs bleibt auch nach längerem Kneten zusammen mit Ölsäureamid erhalten.The doughy state of the plastic remains even after prolonged kneading obtained together with oleic acid amide.

Die Masse zerfällt nicht wie bei Zusatz von Ölsäureäthanolamid in Flocken oder Schuppen.The mass does not disintegrate as with the addition of oleic acid ethanolamide in Flakes or flakes.

Beispiel 2 2,2 kg eines Mischpolymerisates aus 82 Teilen Butadien und 18Teilen Acrylnitril werden in einem 2-l-Laborkneter bei gekühlten Schaufeln 15 Minuten geknetet. Example 2 2.2 kg of a copolymer composed of 82 parts of butadiene and 18 parts of acrylonitrile are mixed in a 2-liter laboratory kneader with the blades cooled Kneaded for 15 minutes.

Die Knetmasse erreicht hierbei eine Temperatur von 1500C. Nach Zugabe von 2,2 g Ölsäureäthanolamid löst sich die vorher zähplastische Masse in flockenartiger Form von den Schaufeln und kann leicht ausgefüllt werden.The putty reaches a temperature of 1500C. After adding 2.2 g of oleic acid ethanolamide dissolves the previously viscous mass in flake-like form Form from the shovels and can be easily filled in.

Claims (1)

PATENTANSPRUCH: Verfahren zur Überführung von Polymerisaten aus ungesättigten Kohlenwasserstoffen mit 2 bis 6 Kohlen-- stoffatomen oder Mischpolymerisaten aus überwiegenden Mengen dieser Kohlenwasserstoffe und geringen Mengen anderer unter gleichen Bedingungen polymerisierbarer, ungesättigter Verbindungen in die Form von Flocken oder Schuppen, dadurch gekennzeichnet, daß man in die in einem Kneter durch Reibungswärme weichgemachten Polymerisate 0,1 bis 301, eines oxalkylierten Fettsäureamids, das sich von einer Fettsäure mit einer Kohlenstoffatomanzaht zwischen 12 und 22 ableitet, mechanisch einarbeitet. PATENT CLAIM: Process for the transfer of polymers from unsaturated Hydrocarbons with 2 to 6 carbon atoms or copolymers predominant amounts of these hydrocarbons and small amounts of others below same conditions of polymerizable, unsaturated compounds in the form of Flakes or flakes, characterized in that they are in a kneader through Frictional heat plasticized polymers 0.1 to 301, an alkoxylated fatty acid amide, that differs from a fatty acid with a carbon atom number between 12 and 22 derives, mechanically incorporated. In Betracht gezogene Druckschriften: Britische Patentschrift Nr. 752 820; USA.-Patentschriften Nr. 2582327, 2770608. Documents considered: British Patent No. 752 820; U.S. Patent Nos. 2582327, 2770608.
DEB42674A 1956-12-01 1956-12-01 Process for the conversion of polymers from unsaturated hydrocarbons with 2 to 6 carbon atoms or copolymers from predominant amounts of these hydrocarbons with small amounts of other unsaturated compounds which can be polymerized under the same conditions in the form of flakes or flakes Pending DE1096595B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB42674A DE1096595B (en) 1956-12-01 1956-12-01 Process for the conversion of polymers from unsaturated hydrocarbons with 2 to 6 carbon atoms or copolymers from predominant amounts of these hydrocarbons with small amounts of other unsaturated compounds which can be polymerized under the same conditions in the form of flakes or flakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB42674A DE1096595B (en) 1956-12-01 1956-12-01 Process for the conversion of polymers from unsaturated hydrocarbons with 2 to 6 carbon atoms or copolymers from predominant amounts of these hydrocarbons with small amounts of other unsaturated compounds which can be polymerized under the same conditions in the form of flakes or flakes

Publications (1)

Publication Number Publication Date
DE1096595B true DE1096595B (en) 1961-01-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218723B (en) * 1960-07-22 1966-06-08 Monsanto Chemicals Antistatic additive to polyethylene
DE1219219B (en) 1959-07-15 1966-06-16 Geigy Ag J R Process for coloring thermoplastics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582327A (en) * 1949-07-23 1952-01-15 Union Carbide & Carbon Corp Process for powdering polyethylene
GB752820A (en) * 1953-08-26 1956-07-18 Du Pont Improvement in plastic composition
US2770608A (en) * 1954-10-12 1956-11-13 Du Pont Polyethylene composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582327A (en) * 1949-07-23 1952-01-15 Union Carbide & Carbon Corp Process for powdering polyethylene
GB752820A (en) * 1953-08-26 1956-07-18 Du Pont Improvement in plastic composition
US2770608A (en) * 1954-10-12 1956-11-13 Du Pont Polyethylene composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219219B (en) 1959-07-15 1966-06-16 Geigy Ag J R Process for coloring thermoplastics
DE1218723B (en) * 1960-07-22 1966-06-08 Monsanto Chemicals Antistatic additive to polyethylene

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