DE1013871B - Process for the production of nitrogen-containing, water-insoluble polymers - Google Patents

Process for the production of nitrogen-containing, water-insoluble polymers

Info

Publication number
DE1013871B
DE1013871B DEW16610A DEW0016610A DE1013871B DE 1013871 B DE1013871 B DE 1013871B DE W16610 A DEW16610 A DE W16610A DE W0016610 A DEW0016610 A DE W0016610A DE 1013871 B DE1013871 B DE 1013871B
Authority
DE
Germany
Prior art keywords
water
nitrogen
production
insoluble polymers
insoluble
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
DEW16610A
Other languages
German (de)
Inventor
Dr Habil Karl Meinel
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Priority to DEW16610A priority Critical patent/DE1013871B/en
Priority to FR1083991D priority patent/FR1083991A/en
Priority to GB3085053A priority patent/GB771478A/en
Publication of DE1013871B publication Critical patent/DE1013871B/en
Pending legal-status Critical Current

Links

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
    • C08F8/00—Chemical modification by after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHES mmm< PATENTAMTGERMAN mmm < PATENT OFFICE

kl. 39 c 25/01kl. 39 c 25/01

INTERNAT. KL. C 08 fINTERNAT. KL. C 08 f

AUSLEGESCHRIFT 1013 871EXPLAINING PAPER 1013 871 ANME LDETAG:ANME LDETAG:

B EKANNTMACHUNG DER ANMELDUNG UND AUSGABE DER AUSLEGESCHRIFT:NOTIFICATION OF REGISTRATION AND ISSUE OF THE EDITING PAPER:

W16610 IVb /39 c 8. NOVEMBER 1952 W 16610 IVb / 39 c NOVEMBER 8, 1952

14. AUGUST 1957AUGUST 14, 1957

Polyacrylamide oder Mischpolymerisate derselben mit Polyacrylnitril haben wegen ihrer Wasserlöslichkeit wenig Eingang in die Technik gefunden. Der Gebrauchswert derselben wird jedoch erheblich erhöht, wenn sie wasserunlöslich gemacht werden können.Polyacrylamides or copolymers of the same with polyacrylonitrile have found little use in technology because of their solubility in water. Of the However, their utility value is considerably increased if they can be made water-insoluble.

Dies gelingt gemäß der Erfindung, wenn die obengenannten Polymerisate erhitzt werden, bis sie wasserunlöslich sind, und gegebenenfalls mit Aldehyden nachbehandelt werden. Die Wasserlöslichkeit vermindert sich schon bei Temperaturen über 100°, z. B. bei 150°, wobei etwa 30 Minuten erhitzt werden muß. In erheblich kürzerer Zeit, z. B. in einigen Minuten, wird die Wasserunlöslichkeit bei 200° erzielt. Man kann das Erhitzen auch zweckmäßig so1 vornehmen, daß man die Temperatur der Polymerisate allmählich ansteigen läßt oder indem man das Material auf mehreren Temperaturstufen länger verweilen läßt. Dabei ist es zweckmäßig, in Abwesenheit von Sauerstoff oder in Gegenwart von nicht oxydierenden Gasen zu arbeiten, um Verfärbungen zu vermeiden. Man kann die Erhitzung auch in indifferenten Flüssigkeiten vornehmen. Je reiner das Ausgangsmaterial ist, um so weniger treten Formveränderungen wie Aufblähen u. dgl. ein. Die erhaltenen Produkte können nachträglich noch mit Aldehyden, z. B. mit Formaldehyd, behandelt werden.According to the invention, this is achieved if the abovementioned polymers are heated until they are insoluble in water and, if appropriate, are aftertreated with aldehydes. The water solubility already decreases at temperatures above 100 °, e.g. B. at 150 °, which must be heated for about 30 minutes. In significantly less time, e.g. B. in a few minutes, the water insolubility is achieved at 200 °. One can make so 1 that is allowed to gradually increase the temperature of the polymers or by allowing the material to stay longer multiple temperature stages, the heating also appropriate. It is advisable to work in the absence of oxygen or in the presence of non-oxidizing gases in order to avoid discoloration. The heating can also be carried out in inert liquids. The purer the starting material, the less changes in shape such as puffing and the like occur. The products obtained can subsequently be treated with aldehydes, e.g. B. be treated with formaldehyde.

Die gemäß der Erfindung erhaltenen Erzeugnisse können vor allem in für plastische Massen bekannter Weise zu Formungen, Fäden, Filmen u. dgl. und auf Lacke verarbeitet werden.The products obtained according to the invention can be used especially in those known for plastic masses Way to form shapes, threads, films and the like. And on lacquers.

Beispiel 1example 1

Wasserlösliche Polyacrylamide oder ein Mischpolymerisat mit Polyacrylnitril etwa im Verhältnis 1 : 9 werden unter Ausschluß von Luft entweder 30 Minuten auf 150° oder einige Minuten auf 220° erhitzt. Das erhaltene Produkt ist wasserunlöslich. Das gleiche Ergebnis wird erhalten, wenn die Erhitzung in siedendem Äthylhexanol vorgenommen wird.Water-soluble polyacrylamides or a copolymer with polyacrylonitrile in a ratio of about 1: 9, with the exclusion of air, either 30 minutes heated to 150 ° or a few minutes to 220 °. The product obtained is insoluble in water. The same The result is obtained when the heating is carried out in boiling ethylhexanol.

Verfahrenprocedure

zur Herstellung stickstoffhaltiger, wasserunlöslicher Polymerisatefor the production of nitrogen-containing, water-insoluble polymers

Anmelder:Applicant:

Wacker-Chemie G. m. b. H., München 22, Prinzregentenstr. 22Wacker-Chemie G. m. B. H., Munich 22, Prinzregentenstr. 22nd

Dr. habil. Karl Meinel, Burghausen (Obb.), ist als Erfinder genannt wordenDr. habil. Karl Meinel, Burghausen (Obb.), Has been named as the inventor

Beispiel 2Example 2

Polyacrylamid oder ein Mischpolymerisat mit Polyacrylnitril, das in Wasser gequollen oder gelöst ist, wird einige Zeit unter Druck auf 200 bis 250° erhitzt. Man erhält ein in Wasser nur noch schwach quellbares Produkt.Polyacrylamide or a copolymer with polyacrylonitrile that has swollen or dissolved in water, is heated for some time under pressure to 200 to 250 °. Something that is only slightly swellable in water is obtained Product.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Verfahren zur Herstellung stickstoffhaltiger, wasserunlöslicher Polymerisate, dadurch gekennzeichnet, daß Polyacrylamide oder deren Mischpolymerisate mit Polyacrylnitril erhitzt werden, bis sie wasserunlöslich sind, und daß gegebenenfalls eine Nachbehandlung mit Aldehyden vorgenommen wird.Process for the production of nitrogen-containing, water-insoluble polymers, characterized in that that polyacrylamides or their copolymers are heated with polyacrylonitrile, until they are insoluble in water, and that, if necessary, an aftertreatment with aldehydes is carried out will. In Betracht gezogene Druckschriften: Deutsche Patentanmeldung B 7619 IVb/39c.Considered publications: German patent application B 7619 IVb / 39c.
DEW16610A 1952-11-08 1952-11-08 Process for the production of nitrogen-containing, water-insoluble polymers Pending DE1013871B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEW16610A DE1013871B (en) 1952-11-08 1952-11-08 Process for the production of nitrogen-containing, water-insoluble polymers
FR1083991D FR1083991A (en) 1952-11-08 1953-09-24 Nitrogen-containing polymerization or copolymerization products insoluble in water and their manufacture
GB3085053A GB771478A (en) 1952-11-08 1953-11-06 Process for the manufacture of water-insoluble nitrogen-containing polymerisation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW16610A DE1013871B (en) 1952-11-08 1952-11-08 Process for the production of nitrogen-containing, water-insoluble polymers

Publications (1)

Publication Number Publication Date
DE1013871B true DE1013871B (en) 1957-08-14

Family

ID=7595795

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW16610A Pending DE1013871B (en) 1952-11-08 1952-11-08 Process for the production of nitrogen-containing, water-insoluble polymers

Country Status (3)

Country Link
DE (1) DE1013871B (en)
FR (1) FR1083991A (en)
GB (1) GB771478A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124244B (en) * 1959-09-08 1962-02-22 Bayer Ag Process for the production of solid, water-soluble polyacrylamides with high molecular weights by precipitation polymerization

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124244B (en) * 1959-09-08 1962-02-22 Bayer Ag Process for the production of solid, water-soluble polyacrylamides with high molecular weights by precipitation polymerization

Also Published As

Publication number Publication date
GB771478A (en) 1957-04-03
FR1083991A (en) 1955-01-14

Similar Documents

Publication Publication Date Title
DE625017C (en) Process for the production of polymerization products from vinyl ethers
CH552675A (en) PROCESS FOR THE PRODUCTION OF OBJECTS FROM A NICKEL ALLOY WITH IMPROVED TENSILE STRENGTH AND EXTENSIBILITY PROPERTIES AND IMPROVED THERMAL RESISTANCE.
DE1013871B (en) Process for the production of nitrogen-containing, water-insoluble polymers
DE1170632B (en) Process for the production of molded articles and laminates based on phthalic acid diallyl esters
DE696147C (en) Process for deforming polyvinyl chloride
DE940734C (en) Process for the production of water-insoluble, nitrogen-containing polymers
US2537146A (en) Copolymers of acrylonitrile and isobutylene and methods of making the same
DE907461C (en) Process for the production of crosslinked polyamides
DE843468C (en) Process for the production of plastics from polyvinyl compounds
DE1283520B (en) Process for improving the properties of crosslinked ethylene polymers
DE605107C (en) Process for the production of molded articles
DE1183685B (en) Process for the production of stable and finely divided dispersions of prepolymers from allyl esters of polybasic carboxylic acids
DE687387C (en) Process for the production of rubber-like polymers from 2-chlorobutadiene which do not harden on storage
DE838822C (en) Process for the production of fine-pored molded bodies
DE1165861B (en) Process for the preparation of N-alkylated polymethacrylic acid imides
DE832497C (en) Process for the production of thermoplastic polyamides
ATE62699T1 (en) COPOLYMERS FROM N-VINYLAMIDES AND PERFLUORALKYL GROUP-CONTAINING ETHYLENICALLY UNSATURATED COMPOUNDS, A PROCESS FOR THEIR PRODUCTION AND THEIR USE.
DE922618C (en) Process for the production of low molecular weight saturated polyethylenes
DE659517C (en) Process for improving films made of polyvinyl chloride
DE2002538C3 (en) Manufacture an optionally crosslinked polymer with controllable physical properties
DE927536C (en) Process to facilitate the processability of vinyl polymers with a high chlorine content
DE812961C (en) Process for the production of plastic masses
DE749587C (en) Process for the production of polyacrylic acid amide
DE889223C (en) Cast wax, in particular for dental purposes
DE679944C (en) Process for the preparation of polymeric compounds