DE526304C - Process for the manufacture of rubbery products - Google Patents

Process for the manufacture of rubbery products

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Publication number
DE526304C
DE526304C DEI33847D DEI0033847D DE526304C DE 526304 C DE526304 C DE 526304C DE I33847 D DEI33847 D DE I33847D DE I0033847 D DEI0033847 D DE I0033847D DE 526304 C DE526304 C DE 526304C
Authority
DE
Germany
Prior art keywords
parts
weight
manufacture
yield
emulsion
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.)
Expired
Application number
DEI33847D
Other languages
German (de)
Inventor
Dr Albert Koch
Dr Hans Lecher
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI33847D priority Critical patent/DE526304C/en
Application granted granted Critical
Publication of DE526304C publication Critical patent/DE526304C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

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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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Description

Verfahren zur Herstellung kautschukartiger Produkte Es sind verschiedene Verfahren bekannt, Diolefine, z. B. Butadien- (r # 3) oder rsopren, in Emulsion zu kautschukähnlichen 1-'rodukten zii polymerisieren.Methods of Making Rubbery Products There are several Process known, diolefins, e.g. B. butadiene (r # 3) or rsoprene, in emulsion polymerize to rubber-like 1-'products zii.

Es wurde nun gefunden, (laß man die Ausbeute an Polyrnerisat verbessern und die Po-IN-inerisationsdaner verkürzen kann, wenn man solche Emulsionen vor der Polvinerisation homogenisiert. Dadurch werden die ernulgierten größeren Kohlenwasserstoffteilchen verkleinert, die Grenzflächen also vergrößert und die Emulsionen stabilisiert.It has now been found (let the polymer yield be improved and the Po-IN inerisationsdaner can shorten if you have such emulsions before the Polvinerization homogenized. This causes the emulsified larger hydrocarbon particles reduced, i.e. the interfaces enlarged and the emulsions stabilized.

Das Homogenisieren kann nach üblichen Methoden erfolgen, z. B. indem man (las Genienge durch enge C)fnungen preßt oller indein man sich einer der bekannten maschinellen Vorrichtungen bedient.The homogenization can be carried out by customary methods, e.g. B. by one (read Genienge through narrow openings) presses oller into one of the known ones machine devices operated.

Beispiel r 75 Vohnnteile Isopren werden in roo Voluniteilen roprozentiger Natriumoleatl<isung unter Schütteln oder Rühren emulgiert. Die Emulsion wird durch Platten aus gefrittetem Glas gepreßt, wobei die emulgierten Kohlenwasserstoffteilchen wesentlich verkleinert werden. Die homogenisierte Emulsion wird dann unter schwacher Bewegung bei 6o° C polymerisiert. Nach zwei Tagen erhält man ein latexähnliches Produkt, (las bei der Koagulation eine kautschukartige Masse in einer Ausbeute von 9o bis 95 °/" liefert. Die Ausbeute ist besser als bei gleichem Ansatz. ohne Homogenisieren, die Polymerisationsdauer kürzer. Der nicht in Kautschuk übergegangene Kohlenwasserstoff ist unverändertes Isopren. Beispiel e Aus <o Gewichtsteilen Butadien-(i #3), ioo Gewichtsteilen einer ioprozentigen t@atriunioleatlösnng und 2 Gewiclitsteileil '(, il Natronlauge wird in üblicher Weise eine Emillsioll hergestellt. Nach Honiogenisiernng derselben in einer Hoi11ogeilirtei'illasclliile, wie sie in1 Patent 163 372 beschrieben ist, wird (sie jetzt stabile und gleichmäßige Emulsion im Druckgefäß etwa zwei Tage auf 6o° erhitzt. Nach dieser Zeit hat sich in quantitativer Ausbeute eine latexähnliclie Masse gebildet, die durch Ansäuern koaguliert werden kann.Example 75% by volume of isoprene are emulsified in 100 parts by volume of 100% sodium oleate solution with shaking or stirring. The emulsion is pressed through plates of fritted glass, the emulsified hydrocarbon particles being substantially reduced in size. The homogenized emulsion is then polymerized at 60 ° C. with gentle agitation. After two days, a latex-like product is obtained (which gives a rubber-like mass in a yield of 90 to 95% during coagulation. The yield is better than with the same batch. Without homogenization, the polymerization time is shorter Hydrocarbon is unchanged isoprene. EXAMPLE e From 0 parts by weight of butadiene- (i # 3), 100 parts by weight of a 10% t @ atrioleate solution and 2 parts by weight of sodium hydroxide solution, an emulsion is made in the usual way as it is in1 Patent 163 372 described, it is (they are heated now stable and uniform emulsion in the pressure vessel for about two days at 6o °. After this time, a latexähnliclie mass was formed in quantitative yield, which can be coagulated by acidification.

Bei spiel3 5o Gewichtsteile Butadiene-(i # 3), So Gewichtsteile Benzol und 2 Gewichtsteile ',I, n Natronlauge werden in üblicher Weise mit Zoo Gewichtsteilen einer 5prozentigen wäßrigen Lösung von \?atriunlste.irat zu einer T?,nulsion verarbeitet, diese, wie oben he- schrieben, homogenisiert und durch dreitägiges Erhitzen auf 0o° polymerisiert. Man erhält so eine latexähnliche Masse, welche koagu- liert und durch Destillation oder Extraktion von Benzol befreit wird. Die Ausbeute an Polvinerisat ist quantitativ; ohne Homogeni- sieren erhält man bei gleichen Polymeri- sationsansätzen eine Ausbeute von h tichstens 70 °i 41. Beispiel Eine Mischung von 5oGewichtsteilen Buta- dicne-(I - 3) und 3o Gewichtsteilen ? - 3-Di- nietlivlbutadien-(i - 3) werden mit i 5o Ge- wichtsteilen einer foprozentigen wäßrigenLci- #un n von Natriumoleat und 4. Gewichtsteilen n Natronlauge emulgiert, wie in Beispiel 2 lioinogenisiert und ein bis zwei 'Page bei etwa 6o° polvincrisiert. Die Ausbeute an Po- ist anniiliei-nd quantitativ. Beispiels 5o Gewichtsteile Dinietli%,lliutadien-(i-3), 75 Gewichtsteile einer i opi-ozeiitil;en . atrium- oleatltisung und 3 Gewichtsteile 'j, n NaOFi werden in einer Schüttelmaschine mit sehr hoher Schwingungsfrequenz (300o pro Mi- nute; »Rüttler« der Eisengießerei und Ma- schinenfabrik Carl Schenck, Darmstadt) emul- giert und gleichzeitig lioinogenis.iert. 'Nach Erwärmen dieser Emulsion auf Oo° während einer Dauer von zwei his drei Tagen polyme- risiert cler gesamte Kohlenwasserstoff'. For example, 50 parts by weight of butadiene- (i # 3), So parts by weight of benzene and 2 parts by weight of 1, n sodium hydroxide solution are processed in the usual way with zoo parts by weight of a 5 percent aqueous solution of atriunlste.irat to a t?, Nulsion as above wrote, homogenized and through three days Heating to 0o ° polymerized. You get such a latex-like mass, which coagulates lated and by distillation or extraction is freed from benzene. The yield at Polvinerisat is quantitative; without homogenous one obtains with the same polymer tion approaches a yield of at least 70 ° i 41. example A mixture of 5o parts by weight of buta- dicne- (I - 3) and 3o parts by weight? - 3-Tue- nietlivlbutadiene- (i - 3) are combined with i 50 parts of a fo percent aqueous liquor #un n of sodium oleate and 4. parts by weight n sodium hydroxide solution emulsified, as in example 2 lioinogenized and one or two pages at Polvinized about 60 °. The yield of Po- is anniiliei-nd quantitative. Example 50 parts by weight of Dinietli%, lliutadiene- (i-3), 75 parts by weight of an opi-ozeiitil; en. atrium oleatltisung and 3 parts by weight 'j, n NaOFi be in a shaker with very high vibration frequency (300o per mini groove; "Vibrators" of the iron foundry and machine factory Carl Schenck, Darmstadt) emul- greed and lioinogenized at the same time. 'To Heat this emulsion to Oo ° during a duration of two to three days. rises all the hydrocarbons.

Claims (1)

PATFNTANSPRUCI-I: Verfäliren zur Ilerstellung kautschuk- artiger Produkte durch Polymerisation von emulgierten Diolefinen, dadurch ge- kennzeichnet, daß die I?niulsionen vor der Pol3!inei-isation lionionenisiert werden.
PATFNTANSPRUCI-I: Distortion for the production of rubber like products by polymerization of emulsified diolefins, thereby indicates that the emulsions before the Pol3! Inei-isation can be lionionized.
DEI33847D 1928-03-17 1928-03-17 Process for the manufacture of rubbery products Expired DE526304C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI33847D DE526304C (en) 1928-03-17 1928-03-17 Process for the manufacture of rubbery products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI33847D DE526304C (en) 1928-03-17 1928-03-17 Process for the manufacture of rubbery products

Publications (1)

Publication Number Publication Date
DE526304C true DE526304C (en) 1931-06-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI33847D Expired DE526304C (en) 1928-03-17 1928-03-17 Process for the manufacture of rubbery products

Country Status (1)

Country Link
DE (1) DE526304C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972982C (en) * 1947-01-30 1959-11-12 Heresite & Chemical Company Process for the copolymerization of butadiene with a polymerizable substance from the styrene and acrylonitrile group

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972982C (en) * 1947-01-30 1959-11-12 Heresite & Chemical Company Process for the copolymerization of butadiene with a polymerizable substance from the styrene and acrylonitrile group

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