DE1569541A1 - Process for the production of porous polymers in a water-in-oil emulsion - Google Patents

Process for the production of porous polymers in a water-in-oil emulsion

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Publication number
DE1569541A1
DE1569541A1 DE19631569541 DE1569541A DE1569541A1 DE 1569541 A1 DE1569541 A1 DE 1569541A1 DE 19631569541 DE19631569541 DE 19631569541 DE 1569541 A DE1569541 A DE 1569541A DE 1569541 A1 DE1569541 A1 DE 1569541A1
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DE
Germany
Prior art keywords
water
oil emulsion
production
initiators
soluble
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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
DE19631569541
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German (de)
Inventor
Dr Med Guenther Will
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of DE1569541A1 publication Critical patent/DE1569541A1/en
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    • 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
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C08J9/283Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum a discontinuous liquid phase emulsified in a continuous macromolecular phase

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Description

Verfahren zur herstellung von porösen Polymerisaten in einer Wasser-in-Öl-Emulsion.Process for the production of porous polymers in a water-in-oil emulsion.

Es ist bekannt poröse Polymerisate durch Polymerisation einer polymerisierbaren Flüssigkeit zu erhalten, indem man Wasser oder Gemische aus Wasser und Lösungsmitteln mit der monomeren Phase dispergiert und dieses System unter Verwendung von Polymerisationsinitiatoren und Beschleunigern der Polymerisation unterwirft. Das hierbei in den Polymerisat eingeschlossene Wasse r kann während und/oder nach der Polymerisation ausgetrieben werden.It is known porous polymers by polymerizing a polymerizable Obtain liquid by adding water or mixtures of water and solvents dispersed with the monomeric phase and this system using polymerization initiators and accelerating polymerization. This in the polymer Trapped water can be driven off during and / or after the polymerization will.

Derartige Verfahren sind beispielsweise in der deutschen Auslegeschrift 1 150 524 und der belgischen Patentschrift 622 034 beschrieben.Such methods are, for example, in the German Auslegeschrift 1 150 524 and Belgian patent specification 622 034.

Auf eine Reihe der bei diesen Polymerisationen verwendeten Initiatoren wirkt Wasser stark phlegmatisierend, so daß die exotherme Reaktion gedämpft wird. Durch diese Phiegmatisierung ist man geneigt den Zusatz der Initiatoren zu erhöhen, wodurch Jedoch eine Verkürzung der pot-life-Zeit eintritt und die Einstellung der Polymerisation auf einen kontinuierlichen Ablauf erschwert wird.A number of the initiators used in these polymerizations Water has a strong phlegmatizing effect, so that the exothermic reaction is dampened. This phlegmatization tends to increase the addition of initiators, However, this results in a shortening of the pot-life time and the cessation of the Polymerization on a continuous process is made more difficult.

Weiterhin wird die Polymerisation einer Wasser-in-Öl-Emulsion, die ungesättigte Polyester enthält in Gegenwart ton monomere und wasserlöslichen Initiatoren so stark beschleunigt daß eine Verarbeitung sehr erschwert, wenn nicht sogar unmöglich wird.Furthermore, the polymerization of a water-in-oil emulsion, the Unsaturated polyester contains in the presence of clay monomeric and water-soluble initiators accelerated so much that processing is very difficult, if not impossible will.

Die Eombination monomer- und tasserldslicher Katalysatorsysteme ist im allgemeinen jedoch mit erheblichen Vorteilen verbunden, so daß man stets der versucht hat durch geeignete Verfahrensi-ßnahmen die Nachteile dieser Systeme auszuschalten.The combination of monomeric and cuprous catalyst systems is in general, however, associated with considerable advantages, so that you always have the tried to eliminate the disadvantages of these systems by means of suitable procedural measures.

Das Verfahren gemäß der Erfindung ist dadurch gekennzeichnet, daß man die Wasser-in-Öl-Eaulsion nach der Formgebung unter dem Einfluß monomerlöslicher Initiatoren und/oder Beschleuniger und gegebenenfalls Wärme vorpolymerisiert und nach der vollständigen oder teilweisen Entformung im Wasserbad in Gegenwart wasserlöslicher Initiatoren und/oder Beschleuniger und gegebenenfalls Wärme auspolymerisiert.The method according to the invention is characterized in that the water-in-oil emulsion after the Shaping under the influence monomer-soluble initiators and / or accelerators and optionally heat prepolymerized and after complete or partial demolding in a water bath in the presence water-soluble initiators and / or accelerators and optionally heat polymerized out.

Hierbei diffundieren die in dem Wasserbad gelösten Katalysatoren und/oder Bsschleunigor in die vorpolymerisigerte teilweise oder vollständig entformte Wasser-in-Öl-Emulsion ein. Durch Beheizen des Wasserbades kann die Polymerisation noch zusätzlich beschleunigt werden.Here, the catalysts and / or dissolved in the water bath diffuse Accelerator in the prepolymerized partially or completely demolded water-in-oil emulsion a. The polymerization can be further accelerated by heating the water bath will.

Man erreicht auf diese Weise ein schnelleres passieren der FormEinrichtung und ist auf diese Weise in der tage, den weiteren Polymerisationsverlauf im Wasserbad mit der Konzentration der Initiatoren und/oder Beschleuniger und der Temperatur des Wasserbades zu steuern.In this way, the mold device can be passed more quickly In this way, the further course of the polymerization in the water bath is in the day with the concentration of the initiators and / or accelerators and the temperature to control the water bath.

Es ist aber auch möglich mit den monomerlöslichen Initiatoren bereits in der Emulsion wasserlösliche Initiatoren und/oder Beschleuniger sit der wäsrigen Phase oinsuführen.But it is also possible with the monomer-soluble initiators already Initiators and / or accelerators which are water-soluble in the emulsion are aqueous Introduce phase.

Als Initiatoren und Beschleuniger werden die bekannten Verbindungen in den üblichen den gewümnschten Polymerisationsablauf angepaßten Konzentrationen eingeBetstX Das Verfahren gemäß der Erfindung bringt besondere Vorteile fUr die Herstellung von Polymerisatbahnen und -folien geringerer Stärke bis etwa 01 mm . Es kann aber auch fiir die Herstellung von Formstücken eingesetzt wer den bei denen ein rascher For@wechael und eine vorszitige Entformung erwünscht ist.The known compounds are used as initiators and accelerators in the usual concentrations adapted to the desired course of the polymerization eingBetstX The method according to the invention has particular advantages for the Production of polymer sheets and foils with a thickness of up to approx. 01 mm. However, it can also be used for the production of fittings a quick for @ wechael and a preliminary demolding is desired.

Beimpielsweise werden in 1000g eines Polyester-Gießharzes mit einem Styrolgehalt von 35% und einer Säurezahl von 25 12,5% Benzoylperoxyd und 15g eines polymeren Emulgators aus Styrol Acrylsäure Acrylnitril mit einer Säurezahl Ton 8 bis 12 gelöst und durch Zugabe von 500g Wasser bei laufendem RUhren eine Wasser-in-l-Emulsion hergestellt.For example, in 1000g of a polyester casting resin with a Styrene content of 35% and an acid number of 25, 12.5% benzoyl peroxide and 15g of one polymeric emulsifier from styrene acrylic acid acrylonitrile with a Acid number tone 8 to 12 dissolved and by adding 500g of water while stirring produced a water-in-1 emulsion.

In die fertige Emulsion werden 2g Dimethylparatoluidin eingerührt, Die Gießmasse wird in ein Faservlies eingestrichen und zwischen zwei Folien gepresst. Nach 10 Minuten wird die Folie Ton dem gelierten Material gezogen und der vorpolymerisierte Formteil im Wasserbad, daß als wasserlöslichen Beschläuniger 0,1% Forinaldehydnatriumsulfoxylat enthält bei 3500 ausgehärtet. Nach der Aushärtung wird das Wasser durch Trocknen entfernt; man erhält ein vollständig durchgchärtetes und geruchfreies poröses Material. 2g dimethylparatoluidine are stirred into the finished emulsion, The casting compound is coated in a fiber fleece and pressed between two foils. After 10 minutes, the film is pulled from the gelled material and the prepolymerized one Molding in a water bath that 0.1% foraldehyde sodium sulfoxylate as a water-soluble accelerator contains cured at 3500. After hardening, the water is dried through removed; a completely hardened and odor-free porous material is obtained.

Claims (1)

Patentanspruch Verfahren zur Herstellung von Polymerisaten in einer Wasser-in-Öl-Emulsion unter Formgebung dadurch gekennzeichnet, daß man die Wasser-in-Öl-Emulsion nach der Formgebung unter dem Einfluß von monomerlöslichen undioder wasserlöslichen Initiatoren und/oder Beschleuniger und gegebenenfalls Wärme vorpolymerisiert und nach der vollständigen oder teilweisen Entformung in Wasser, in Gegenwart wasserlöslicher Initiatoren und/oder Beschleuniger und gegebenenfalls Wärme auspolymerisiert. Process for the production of polymers in one Shaping water-in-oil emulsion, characterized in that the water-in-oil emulsion after shaping under the influence of monomer-soluble and / or water-soluble Initiators and / or accelerators and optionally heat prepolymerized and after complete or partial demolding in water, in the presence of water-soluble Polymerized initiators and / or accelerators and, if appropriate, heat.
DE19631569541 1963-11-14 1963-11-14 Process for the production of porous polymers in a water-in-oil emulsion Pending DE1569541A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0035624 1963-11-14

Publications (1)

Publication Number Publication Date
DE1569541A1 true DE1569541A1 (en) 1970-04-02

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Application Number Title Priority Date Filing Date
DE19631569541 Pending DE1569541A1 (en) 1963-11-14 1963-11-14 Process for the production of porous polymers in a water-in-oil emulsion

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DE (1) DE1569541A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503156A2 (en) * 1991-02-13 1992-09-16 Schock & Co. GmbH Process of manufacture of a moulded polymer article based on a water expanded polyacrylic resin
US5331016A (en) * 1991-02-13 1994-07-19 Schock & Co., Gmbh Plastic moldings made of water-expanded polymer resin
WO2001038403A1 (en) * 1999-11-19 2001-05-31 Nippon Shokubai Co., Ltd. Method for production of porous cross-linked polymer material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503156A2 (en) * 1991-02-13 1992-09-16 Schock & Co. GmbH Process of manufacture of a moulded polymer article based on a water expanded polyacrylic resin
EP0503156A3 (en) * 1991-02-13 1992-12-02 Schock & Co. Gmbh Moulded polymer article on the basis of water-expanded polymer resin
US5254599A (en) * 1991-02-13 1993-10-19 Schock & Co. Gmbh Plastic moldings made of water-expanded polymer resin
US5331016A (en) * 1991-02-13 1994-07-19 Schock & Co., Gmbh Plastic moldings made of water-expanded polymer resin
WO2001038403A1 (en) * 1999-11-19 2001-05-31 Nippon Shokubai Co., Ltd. Method for production of porous cross-linked polymer material
US6274638B1 (en) 1999-11-19 2001-08-14 Nippon Shokubai Co., Ltd. Method for production of porous cross-linked polymer material

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