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DE627037C - Process for the production of copolymers - Google Patents

Process for the production of copolymers

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Publication number
DE627037C
DE627037C DEI49594D DEI0049594D DE627037C DE 627037 C DE627037 C DE 627037C DE I49594 D DEI49594 D DE I49594D DE I0049594 D DEI0049594 D DE I0049594D DE 627037 C DE627037 C DE 627037C
Authority
DE
Germany
Prior art keywords
copolymers
production
acrylic acid
homologues
mixtures
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
DEI49594D
Other languages
German (de)
Inventor
Dr Carl Wulff
Dr Eugen Dorrer
Dr Heinrich Hopff
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 DEI49594D priority Critical patent/DE627037C/en
Application granted granted Critical
Publication of DE627037C publication Critical patent/DE627037C/en
Expired legal-status Critical Current

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Description

Verfahren zur Herstellung von Mischpolymerisaten Es wurde gefunden, daß man technisch besonders wertvolle Mischpolymerisate durch Polymerisation von Mischungen aus Styrol oder dessen Homologen bzw. Derivaten und Estern der Acrylsäure oder deren Homologen mit aliphatischen Alkoholen mit mindestens 4. Kohlenstoffatomen erhält, wenn man Mischungen verwendet, die auf ioo Teile Styrolkörper nur etwa a bis io, vorzugsweise etwa 5TeileAcrylsäureester@enthalten. DieBolymerisation dieser Mischungen kann nach an sich bekannten Verfahren erfolgen, beispielsweise in Substanz oder wässeriger Emulsion in kontinuierlicher oder diskontinuierlicher Arbeitsweise.Process for the production of copolymers It has been found that one industrially particularly valuable copolymers by polymerizing Mixtures of styrene or its homologues or derivatives and esters of acrylic acid or their homologues with aliphatic alcohols with at least 4th carbon atoms obtained when using mixtures which contain only about a to 10, preferably about 5 parts of acrylic acid ester @. The polymerization of these Mixtures can be carried out by processes known per se, for example in bulk or aqueous emulsion in continuous or discontinuous operation.

Als Homologe bzw. Derivate des Styrols kommen beispielsweise in Frage Methylstyrole und Chlorstyrole. Geeignete Ester der Acrylsäure sind beispielsweise der Acrylsäuren-butylester, -isobutylester, -amylester, -octylester usw. i auch die entsprechenden Ester der a-Methylacrylsäure kommen beispielsweise als Ausgangsmaterial in Betracht.Possible homologues or derivatives of styrene are, for example Methyl styrenes and chlorostyrenes. Suitable esters of acrylic acid are, for example the acrylic acid butyl ester, isobutyl ester, amyl ester, octyl ester, etc. i also the corresponding esters of α-methylacrylic acid are used, for example, as starting material into consideration.

Die erhaltenen Mischpolymerisate besitzen gegenüber den aus Styrol allein hergestellten Polymerisaten den Vorzug der größeren Elastizität bei Zimmertemperatur und den der höheren - Zähigkeit bei erhöhten Temp:ergturen. Letzteres ist beispielsweise für das Verarbeiten der Mischpolymexis'ate nach dem Spritzverfahren von großer Wichtigkeit. Gegenüber den Mischpolymerisaten aus Styrol und größeren Mengen Acrylsäurebutylestex besitzen die gemäß der Erfindung erhältlichen speziellen Mischpolymerisate insbesondere den Vorzug der größeren Härte. Die neuen Mischpolymerisate kommen z. B. für die Herstellung von Spritzmassen in Frage und liefern hierbei Formkörper, bei denen Spannungsrisse nicht auftreten.The copolymers obtained have compared to those made of styrene Polymers produced alone have the advantage of greater elasticity at room temperature and that of the higher - toughness at increased temp: ergturen. The latter is for example of great importance for processing the mixed polymers by the injection molding process. Compared to the copolymers made of styrene and larger amounts of butyl acrylate the special copolymers obtainable according to the invention have in particular the advantage of greater hardness. The new copolymers come z. B. for the Production of injection molding compounds in question and hereby deliver moldings in which Stress cracks do not occur.

Claims (1)

PATENTANSPRUCIi Verfahren zur Herstellung von Mischpolymerisaten aus Mischungen von S.tyrol oder dessen Homologen bzw. Derivaten mit Estern der Acrylsäure oder deren Homologen und aliphatischen Alkoholen mit mindestens ¢ Kohlenstoffatomen, dadurch gekennzeichnet, daß man Mischungen verwendet, die auf ioo Teile Styrol nur .etwa a bis i o, vorzugsweise etwa 5 Teile des Acrylsäureesters enthalten.PATENT CLAIMS Process for the production of copolymers from Mixtures of S.tyrol or its homologues or derivatives with esters of acrylic acid or their homologues and aliphatic alcohols with at least ¢ carbon atoms, characterized in that mixtures are used which are based on 100 parts of styrene only . About a to i o, preferably about 5 parts of the acrylic acid ester.
DEI49594D 1934-04-28 1934-04-28 Process for the production of copolymers Expired DE627037C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI49594D DE627037C (en) 1934-04-28 1934-04-28 Process for the production of copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI49594D DE627037C (en) 1934-04-28 1934-04-28 Process for the production of copolymers

Publications (1)

Publication Number Publication Date
DE627037C true DE627037C (en) 1936-03-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI49594D Expired DE627037C (en) 1934-04-28 1934-04-28 Process for the production of copolymers

Country Status (1)

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DE (1) DE627037C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446049A (en) * 1943-02-13 1948-07-27 American Cyanamid Co Copolymers of isopropenyl toluene and acrylate and processes of producing same
DE1006158B (en) * 1953-09-03 1957-04-11 Bayer Ag Process for the production of gasoline-soluble or gasoline-compatible, film-forming polymers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446049A (en) * 1943-02-13 1948-07-27 American Cyanamid Co Copolymers of isopropenyl toluene and acrylate and processes of producing same
DE1006158B (en) * 1953-09-03 1957-04-11 Bayer Ag Process for the production of gasoline-soluble or gasoline-compatible, film-forming polymers

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