DE1006148B - Synthetic resin press mixes - Google Patents

Synthetic resin press mixes

Info

Publication number
DE1006148B
DE1006148B DEF12313A DEF0012313A DE1006148B DE 1006148 B DE1006148 B DE 1006148B DE F12313 A DEF12313 A DE F12313A DE F0012313 A DEF0012313 A DE F0012313A DE 1006148 B DE1006148 B DE 1006148B
Authority
DE
Germany
Prior art keywords
synthetic resin
resin press
resins
press mixes
mixes
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
DEF12313A
Other languages
German (de)
Inventor
Dr Karl Dietz
Dr Annie Buhmann
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Priority to DEF12313A priority Critical patent/DE1006148B/en
Publication of DE1006148B publication Critical patent/DE1006148B/en
Pending legal-status Critical Current

Links

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
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/205Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C08J3/212Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase and solid additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Description

Kunstharz-Preßmischungen Zusatz zur Patentanmeldung F 7033 IV b /39 b In der Hauptpatentanmeldung F 7033 IVb/39b wurden Kunstharzpreßmischungen vorgeschlagen, die aus Xylenolaldehydharz, einem Chlorhydrin oder Trimethylphosphat und bzw. oder Triäthylphosphat, Füllstoffen und gegebenenfalls noch anderen Preßharzen und bzw. oder thermoplastischen Harzen und bzw. oder bekannten Säuren oder anderen neutralen Härtern bestehen. Synthetic resin press mixes addendum to patent application F 7033 IV b / 39 b In the main patent application F 7033 IVb / 39b, synthetic resin molding compounds were proposed, those of xylenol aldehyde resin, a chlorohydrin or trimethyl phosphate and / or Triethyl phosphate, fillers and possibly other molding resins and / or or thermoplastic resins and / or known acids or other neutral Hardeners exist.

Es wurde gefunden, daß die Herstellung der Preßformkörper technisch auf noch vorteilhaftere Weise sowohl mit Xylenol-Harz als auch mit anderen Kunstharzen bzw. Kunststoffen durchgeführt werden kann, wenn man das Kunstharzmaterial in Form einer wäßrigen Emulsion anwendet. Dabei geht man so vor, daß man die wäßrige Kunstharzemulsion bzw. -dispersion zunächst mit den Füllstoffen unter eventuellem Zusatz von Härtemitteln und anderen Zusatzstoffen in einem Mischapparat und dann über einen Walzenstuhl durchmischt und teilweise entwässert. Bei dem Verpressen dieser Mischungen, z. B. auf der Schneckenpresse, zeigt sich, daß solche Mischungen außerordentlich leicht und vor allen Dingen mit großer Temperaturunabhängigkeit, also sowohl bei niederen als bei hohen Temperaturen, verpreßt werden können. t'berraschenderweise übt der aus der wäßrigen Emulsion stammende Wasseranteil keinerlei schädlichen Einfluß auf den Preßvorgang und auf die gepreßten Formlinge aus. Man kann auf diese Weise völlig porenfreie und dichte Preßkörper herstellen, besonders dann, wenn man durch eine Vorbehandlung in einen mechanischen Mischapparat und bzw. oder auf einem Walzenstuhl, gegebenenfalls unter leichtem Erwärmen, die Höhe des Wassergehalts in der Preßmasse entsprechend einrichtet. It has been found that the production of the molded bodies is technical more advantageously with both xylenol resin and other synthetic resins or plastics can be done when you put the resin material in shape an aqueous emulsion applies. The procedure here is to use the aqueous synthetic resin emulsion or dispersion first with the fillers with possible addition of hardeners and other additives in a mixer and then through a roller mill mixed and partially drained. When pressing these mixtures, e.g. B. on the screw press, it turns out that such mixtures are extremely easy and above all with great temperature independence, i.e. both at low temperatures than at high temperatures, can be pressed. Surprisingly, he practices water content originating from the aqueous emulsion does not have any harmful influence the pressing process and on the pressed moldings. One can totally do this Produce pore-free and tight compacts, especially if you go through a Pretreatment in a mechanical mixer and / or on a roller mill, possibly with gentle heating, the level of the water content in the molding compound set up accordingly.

Für diese Verarbeitungsweise eignen sich die Emulsionen bzw. Dispersionen von allen Kunstharzen, z. B. Emulsion von Phenol-Aldehyd-Harzen, Xylenol-Aldehyd-Harzen, Phenol-Furan-Aldehyd-Harzen, Xylenol-Furan-Aldehyd-Harzen, Harnstoff-Formaldehyd Harzen und Dispersionen von Polymerisationskunststoffen, wie Polyvinylacetat, Polyvinylchlorid, Polystyrol, Polyisobutylen, Polytetrafluoräthylen, Polymonochlortrifluoräthylen und Mischpolymerisate. Unter der Bezeichnung »Furan« werden hierbei Abkömmlinge dieser Verbindung, und zwar das Furfurol und der Furfurylalkohol verstanden. The emulsions or dispersions are suitable for this type of processing of all synthetic resins, e.g. B. Emulsion of phenol-aldehyde resins, xylenol-aldehyde resins, Phenol-furan-aldehyde resins, xylenol-furan-aldehyde resins, urea-formaldehyde Resins and dispersions of polymerisation plastics, such as polyvinyl acetate, polyvinyl chloride, Polystyrene, polyisobutylene, polytetrafluoroethylene, polymonochlorotrifluoroethylene and copolymers. The term »furan« is used here for descendants this compound, namely furfurol and furfuryl alcohol.

Es sind zwar schon Kunststoffmischungen bekannt, die zur Weiterverarbeitung die Kunststoffe im dispergierten Zustand enthalten. Bei den Kunstharzpreßmischungen gemäß der Erfindung handelt es sich jedoch nicht um gewöhnliche Kunstharzmischungen, sondern um solche zur Herstellung von Preßkörpern. There are already plastic mixtures known that are used for further processing which contain plastics in the dispersed state. With the synthetic resin molding compounds according to the invention, however, it is not a matter of ordinary synthetic resin mixtures, but about those for the production of pressed bodies.

Die erfindungsgemäß vorgeschlagenen Kunstharz-bzw. Kunststoffmischungen werden also auf einer Presse und unter hohem Druck verformt. Demgegenüber handelt es sich bei den bekannten Kunststoffmischungen, die die Kunststoffe im dispergierten Zustand enthalten, um Dispersionen, die nach dem Streichverfahren verarbeitet werden. Hieraus konnte aber nicht abgeleitet werden, daß die sehr druckempfindlichen Kunststoffemuls ionen und -dispersionen sich nach dem Preßverfahren verarbeiten lassen, ohne zu zerfallen.The synthetic resin or synthetic resin proposed according to the invention. Plastic mixtures so be on a Press and deformed under high pressure. In contrast, acts it is the known plastic mixtures that dispersed the plastics in the State included to dispersions that are processed by the coating process. But it could not be deduced from this that the very pressure-sensitive plastic emuls Ions and dispersions can be processed by the pressing process without disintegrate.

Beispiel Eine Mischung aus 100 Gewichtsteilen einer 500/eigen Xylenol-Aldehyd-Harzemulsion, welche einen Gehalt von je 5 ovo an Glykolchlorhydrin und Epichlorhydrin, berechnet auf den Harzanteil, enthält, wird mit 200 Gewichtsteilen Flockengraphit oder Kunstgraphitmehl in einem Mischer nach Werner & Pfleiderer gemischt und auf einem Walzenstuhl weiterbehandelt, bis etwa die Hälfte des Wassergehaltes der Kunstharzemuls ion weggetrocknet fest. Diese Mischung wird in einer Schneckenpresse bei Temperaturen zwischen 30 und 1100 zu Rohren verpreßt. Example A mixture of 100 parts by weight of a 500 / own xylenol-aldehyde resin emulsion, which calculated a content of 5 ovo each of glycol chlorohydrin and epichlorohydrin on the resin content, is mixed with 200 parts by weight of flake graphite or artificial graphite flour mixed in a Werner & Pfleiderer mixer and on a roller mill treated further until about half of the water content of the synthetic resin emulsion has dried off fixed. This mixture is in a screw press at temperatures between 30 and crimped 1100 to form pipes.

Claims (1)

PATENTANSPRUCH: Weitere Ausbildung der Kunstharz - Preßmischungen gemäß Hauptpatentanmeldung F 7033 IVb/39b, dadurch gekennzeichnet, daß sie die Kunstharze bzw. Kunststoffe in Form ihrer konzentrierten wäßrigen Emulsion bzw. Dispersion enthalten. PATENT CLAIM: Further training of synthetic resin press mixes according to main patent application F 7033 IVb / 39b, characterized in that they use the synthetic resins or plastics in the form of their concentrated aqueous emulsion or dispersion contain. In Betracht gezogene Druckschriften: »BASF Kunststoffe«, 1951, S. 106; »Chemilsche Industrie«, 1951, S. 644; deutsche Patentanmeldung p 28751 IVc /39 b D (Patent 897 155). Publications considered: "BASF Kunststoffe", 1951, p. 106; "Chemilsche Industrie", 1951, p. 644; German patent application p 28751 IVc / 39 b D (Patent 897 155).
DEF12313A 1953-07-09 1953-07-09 Synthetic resin press mixes Pending DE1006148B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF12313A DE1006148B (en) 1953-07-09 1953-07-09 Synthetic resin press mixes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF12313A DE1006148B (en) 1953-07-09 1953-07-09 Synthetic resin press mixes

Publications (1)

Publication Number Publication Date
DE1006148B true DE1006148B (en) 1957-04-11

Family

ID=7086980

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF12313A Pending DE1006148B (en) 1953-07-09 1953-07-09 Synthetic resin press mixes

Country Status (1)

Country Link
DE (1) DE1006148B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152255B (en) * 1958-12-18 1963-08-01 Ciba Geigy Process for the production of pressed parts from molding compounds which contain epoxies

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE897155C (en) * 1944-10-24 1953-11-19 Carborundum Co Process for the manufacture of abrasives

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE897155C (en) * 1944-10-24 1953-11-19 Carborundum Co Process for the manufacture of abrasives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152255B (en) * 1958-12-18 1963-08-01 Ciba Geigy Process for the production of pressed parts from molding compounds which contain epoxies

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