DE1032530B - Process for the production of plastic elastomers with rebound elasticity based on organopolysiloxane - Google Patents

Process for the production of plastic elastomers with rebound elasticity based on organopolysiloxane

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Publication number
DE1032530B
DE1032530B DEJ12134A DEJ0012134A DE1032530B DE 1032530 B DE1032530 B DE 1032530B DE J12134 A DEJ12134 A DE J12134A DE J0012134 A DEJ0012134 A DE J0012134A DE 1032530 B DE1032530 B DE 1032530B
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DE
Germany
Prior art keywords
organopolysiloxane
boron compound
production
polyvinyl chloride
polymerized
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
DEJ12134A
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German (de)
Inventor
Helmut Jedlicka
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DEJ12134A priority Critical patent/DE1032530B/en
Publication of DE1032530B publication Critical patent/DE1032530B/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
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/14Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms

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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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Verfahren zur Herstellung von plastischen, Rückprallelastizität aufweisenden Elastomeren auf Organopolysiloxangrundlage Die USA.-Patentschrift 2 541 851 heschreibt ein Verfahren zur Herstellung von plastischen, Rückprallelastizität aufweisenden Elastomeren auf Organopolysiloxangrundlage, und zwar von sogenanntem Hüpfkitt (bouncing putties) . Hierbei wird ein Methylsilikon zusammen mit einer Borverbindung, z. B. Borsäure, dadurch Erwärmen auspolymerisiert, bis ein festes oder gelartiges elastisches Produkt erreicht ist, das dann mit einem feinen anorganischen Füllstoff, z. B. Titandioxyd und etwas Zinkhydroxyd, Eisenchlorid, his zum Erreichen des plastischen Zustandes geknetet wird. Die erzielten Produkte, die je nach Zusammensetzung und Verarbeitung teigig klebrig fensterkittartig, gelartig. gummiartig oder krümelig anfallen, hesitzen alle die Eigenschaft der Riicl;prallelastizität. Ein Stoß wird um so elastischer zurückgeworfen, je härter und je kiirzer die Stoßeinwirkung war. In der Ruhe zeigen die Produkte, die zwischen Silikonöl und Silikongummi liegen. ein Fließen wie sehr zähe Ole. Sie können ein Gefäß wie eine Flüssigkeit ausfüllen ein Klumpen fließt mit der Zeit zu einer .Scheil)e aus. Process for the production of plastic, rebound resilience exhibiting Organopolysiloxane-Based Elastomers U.S. Patent 2,541,851 writes a process for the production of plastic, rebound resilience exhibiting Organopolysiloxane-based elastomers made from so-called bouncing putty putties). Here, a methyl silicone is used together with a boron compound, e.g. B. Boric acid, as a result of which it is heated, polymerizes until it becomes solid or gel-like, elastic Product is achieved, which is then filled with a fine inorganic filler, e.g. B. titanium dioxide and some zinc hydroxide, ferric chloride, until it has reached the plastic state is kneaded. The products obtained, depending on the composition and processing doughy sticky putty-like, gel-like. Are gummy or crumbly, sit down all the property of Riicl; resilience. A shock becomes all the more elastic thrown back, the harder and the shorter the impact. Show in peace the products that lie between silicone oil and silicone rubber. a flowing how much tough oils. You can fill a vessel like a liquid flowing a lump with time to a .scheil) e.

In der deutschen Patentschrift 935 690 und Zusatzpatentschrift 948 073 wird die Verwendung dieses Silikonkittes als Mittel zur lösbaren Verbindung beii el>iger Materialien vorgeschlagen. In der deutschen Patentschrift 957 156 wird darüber hinaus gezeigt, daß durch ein nachträgliches Einkneten von Polyvinylchloridpulver in die hereits fertigen, anorganische Füllstoffe enthaltenden. nach dem Verfahren der USA.-Patentschrift 2 541 851 hergestellten Hiipfkitte (I)ouncing putties), sehr brauchbare Klelstoffe erhalten werden. l)as erfindungsgemäße Verfahren zur Herstellung plastischer. Riickprallelastizität aufweisender Elastoinert auf Organopolysiloxangrundlage hesteht nun darin. daß in Abänderung des Verfahrens zur Herstellung von Hüpfkitten nach der LtSA.-Patentschrift 2 541 851 an Stelle oder gleichzeitig neben den hekannten anorganischen Füllstoffen ein erheblicher Anteil, und zwar mindestens 50 Gewichtsprozent (herechnet auf die Menge des mit einer Borverbindung polymerisierten Methylsil ikons) Polyvinylcllloridpulver zugefügt und das Material darauf in üblicher Weise zum »Bouncing putty« verknetet wird, wodurch also das einen weiteren Arbeitsgang erfordernde nachträgliche Einkneten von Polyvinylchlori dpulver in die an sich fertigen, anorganische Füllstoffe enthaltenden »bouncing putties« vermieden werden kann. In German patent specification 935 690 and additional patent specification 948 073 is the use of this silicone putty as a means of releasable connection Suggested some materials. In German patent specification 957 156 it is also shown that by subsequently kneading in polyvinyl chloride powder in the here ready-made, containing inorganic fillers. after the procedure U.S. Pat. No. 2,541,851 made hilt putties (I) ouncing putties), very much useful Klelstoffe can be obtained. l) as the process according to the invention for production more plastic. Elastoinert based on organopolysiloxane and exhibiting rebound resilience is now in it. that in modification of the process for the production of bouncy kittens according to LtSA.-Patent 2,541,851 instead of or at the same time next to the known ones inorganic fillers a significant proportion, at least 50 percent by weight (calculated on the amount of methylsilicone polymerized with a boron compound) Polyvinyl chloride powder was added and the material was then used for bouncing in the usual way putty «is kneaded, which means that a subsequent work step is required Kneading polyvinylchloride powder into the inorganic fillers, which are ready-made containing "bouncing putties" can be avoided.

Ein besonderes Herstel lungsverfahren besteht darill. daß das mit der Borverhindung polymerisierte Silikoii zusammen mit feinem Polyvinylchloridpulver in einer Strangpresse mit Lochscheiben an der Austrittsdüse. vorteilhafterweise aber in ein Gerät mit Förderschnecke, rotierendem Messer und Lochscheibe, analog einem Fleischwolf, gegeben wird. Das herauskommende Material wird dabei nach Bedarf ein oder mehrmals erneut in die Maschine gegeben, his es die gewünschten plastisch elastischen Eigenschaften hesitzt. Gegebenenfalls wird dabei eine geringe Menge eines anorganischen Füllstoffes und etwas Zinkhydroxyd oder F,isenchlorid zugegehen. There is a special manufacturing process. that with the boron compound polymerized silicone together with fine polyvinyl chloride powder in an extruder with perforated disks at the outlet nozzle. advantageous but in one device with Conveyor screw, rotating knife and perforated disc, analog a meat grinder. The material coming out is used as needed put back into the machine one or more times until it has the desired plasticity elastic properties. If necessary, a small amount is used an inorganic filler and a little zinc hydroxide or F, isene chloride added.

Die Arl,eiten zeigen, daß die Zugahe des Polyvinylchlorids mit der bisherigen Verwendung anorganischer Füllstoffe nicht zu vergleichen ist. Auch mit einigen anderen pulverisierten thermoplastischen Kunstharzen wird kein vergleichbares Ergehnis erreicht. Das Polyvinylchlorid wird völlig in die Silikonsuhstanz aufgenommen. so daß entgegen allen bisherigen und den weiterhin untersuchten Pulvern eine erhehliche Menge zugesetzt werden kann, ohne daß sich die Eigenschaften der Rückprallelastizität aufweisenden Masse. wie die Plastizität und Rückprallelastizität, wesentlich ändern. Nur die Fließfähigkeit der Masse ändert sich mit der des Zusatzes, sie wird kleiner. The figures show that the addition of polyvinyl chloride with the previous use of inorganic fillers cannot be compared. Also with some other powdered thermoplastic resins will not do a comparable one Result achieved. The polyvinyl chloride is completely absorbed into the silicone base. so that, contrary to all previous powders and those that have been investigated further, a substantial one Amount can be added without affecting the resilience properties having mass. such as plasticity and rebound resilience, change significantly. Only the flowability of the mass changes with that of the additive, it becomes smaller.

Für die bisherigen Anwendungen dieser Silikon-»Hüpfkitte« (bouncing putties) ist dies erwünscht. Für Klebzwecke ergibt sich zudem durch den Polyvinylchloridzusatz eine Steigerung der Hafteigenschaften.For the previous applications of this silicone »bouncing putty« (bouncing putties) this is desirable. The addition of polyvinyl chloride is also used for adhesive purposes an increase in the adhesive properties.

Damit wird durch das erfindungsgemäße Verfahren ein technischer Fortschritt und zudem eine beträchtliche wirtschaftliche Ersparnis erreicht. Der Polyvinylchloridzusatz kann hei Bedarf im Verhältnis 1:1 bis etwa 5:1 (Polyvinylchlorid zu Silikon) deni mit der 13Orverl)iIldullg polymerisierten Methylsilikon zugesetzt werden. Die Bestandteile werden bei Raumtemperatur oder nach Erwärmung bis zu etwa 600 C vermengt. The method according to the invention thus represents a technical advance and also achieved a considerable economic saving. The polyvinyl chloride additive can be used in a ratio of 1: 1 to about 5: 1 (polyvinyl chloride to silicone) if required methyl silicone polymerized with the 13Orverl) iIldullg can be added. The parts are mixed at room temperature or after heating up to about 600 C.

Claims (2)

PATENTANSPRVCHE: 1. Verfahren zur Herstellung von plastischen, Rückprallelastizität aufweisenden Elastomeren auf Organopolysiloxangrundlage aus mit einer Borverbindung polymerisi erten Methylsilikonen und Füllstoffen sowie gegebenenfalls Zusätzen von Zinkhydroxyd oder Eisenchlorid, dadurch gekennzeichnet, daß als Füll- und Streckmittel an Stelle oder neben den für die Herstellung von Hüpfkitten bekannten anorganischen Füllstoffen mindestens etwa 50 Gewichtsprozent Polyvinylchlorid, bezogen auf das mit der Borverbindung polymerisierte Methylsilikon, verwendet wird.PATENT CLAIM: 1. Process for producing plastic, rebound resilience comprising elastomers based on organopolysiloxane with a boron compound polymerized methyl silicones and fillers and, if necessary, additions of Zinc hydroxide or iron chloride, characterized in that as a filler and extender instead of or in addition to the inorganic ones known for the production of jumping kittens Fillers at least about 50 percent by weight polyvinyl chloride, based on the methyl silicone polymerized with the boron compound is used. 2. Ausführungsform des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß das mit der Borverbindung polymerisierte Methylsilikon zusammen mit feinem Polyvinylchloridpulver in einer Strangpresse mit Lochscheiben an der Austrittsdüse oder in einem Gerät mit Förderschnecke, rotierendem Messer und Lochscheibe, gegebenenfalls wiederholt, verknetet und verformt wird. 2. Embodiment of the method according to claim 1, characterized in that that the methyl silicone polymerized with the boron compound together with fine polyvinyl chloride powder in an extrusion press with perforated disks on the outlet nozzle or in a device with conveyor screw, rotating knife and perforated disc, repeated if necessary, is kneaded and deformed. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 541 851. References considered: U.S. Patent No. 2,541 851 Entgegengehaltene ältere Rechte: Deutsches Patent Nr 957 156. Cited earlier rights: German Patent No. 957 156.
DEJ12134A 1956-08-29 1956-08-29 Process for the production of plastic elastomers with rebound elasticity based on organopolysiloxane Pending DE1032530B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ12134A DE1032530B (en) 1956-08-29 1956-08-29 Process for the production of plastic elastomers with rebound elasticity based on organopolysiloxane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ12134A DE1032530B (en) 1956-08-29 1956-08-29 Process for the production of plastic elastomers with rebound elasticity based on organopolysiloxane

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DE1032530B true DE1032530B (en) 1958-06-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177176A (en) * 1961-10-02 1965-04-06 Gen Electric Adding silica prior to condensation of boron-polysiloxane
DE1230564B (en) * 1963-09-09 1966-12-15 Dow Corning Process for the production of oil-resistant organopolysiloxane elastomers
US8496884B2 (en) 2005-06-17 2013-07-30 Beckman Coulter, Inc. Stirring container and analyzer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541851A (en) * 1944-12-23 1951-02-13 Gen Electric Process for making puttylike elastic plastic, siloxane derivative composition containing zinc hydroxide
DE957156C (en) * 1956-02-09 1957-01-31 Helmut Jedlicka Adhesive for uniting any materials and process for its manufacture based on silicone putty

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541851A (en) * 1944-12-23 1951-02-13 Gen Electric Process for making puttylike elastic plastic, siloxane derivative composition containing zinc hydroxide
DE957156C (en) * 1956-02-09 1957-01-31 Helmut Jedlicka Adhesive for uniting any materials and process for its manufacture based on silicone putty

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177176A (en) * 1961-10-02 1965-04-06 Gen Electric Adding silica prior to condensation of boron-polysiloxane
DE1230564B (en) * 1963-09-09 1966-12-15 Dow Corning Process for the production of oil-resistant organopolysiloxane elastomers
US8496884B2 (en) 2005-06-17 2013-07-30 Beckman Coulter, Inc. Stirring container and analyzer

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