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 flakesInfo
- 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
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
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
Landscapes
- 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)
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 |
Family
ID=6966802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB42674A Pending 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 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1096595B (en) |
Cited By (2)
| 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)
| 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 |
-
1956
- 1956-12-01 DE DEB42674A patent/DE1096595B/en active Pending
Patent Citations (3)
| 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)
| 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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