Published February 2, 1978 | Version v1
Patent Open

Method for the fabrication of water-soluble sodium acrylate polymers by means of high-energy ionizing radiation

Creators

Description

The fabrication method of high-molecular sodium acrylate polymers by means of radiation of aqueous solutions that contain 25-40% by weight of sodium acrylate with high-energy ionizing radiation is being improved. The dose rate should range between 5000 and 50.000 rad/h, with maximally 200.000 rad/h. The pH value is at least 8. The water containing gel thus obtained serves to thicken aqueous solutions and as flocculating agent. The method is described in detail. (UWI)

Availability note (English)

MF available from INIS under the Report Number; Available from Deutsches Patentamt, Muenchen, Germany, F.R.

Abstract (German)

Das Verfahren zur Herstellung von hochmolekularen Natriumacrylatpolymeren durch Bestrahlung waessriger Loesungen, die 25-40 Gew% an Natriumacrylat enthalten, mit energiereicher ionisierender Strahlung, wird verbessert. Die Dosisrate soll zwischen 5000 bis 50000rad/h liegen, maximal bei 200.000 rad/h. Der pH-Wert betraegt mindestens 8. Das so gewonnene wasserhaltige Gel dient zur Verdickung waessriger Loesungen und als Flockungsmittel. Das Verfahren ist ausfuehrlich beschrieben. (UWI)

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Additional details

Additional titles

Original title (German)
Verfahren zur Herstellung von wasserloeslichen Natriumacrylat-Polymeren mittels energiereicher ionisierender Strahlung

Publishing Information

Imprint Pagination
5 p.
IPC:
Int. Cl. C08F 120/06; C08F 2/46.
IPC
Int. Cl. C08F 120/06; C08F 2/46.
Patent number
DE patent document 1961099/C/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
12588491
Subject category
S07: ISOTOPES AND RADIATION SOURCES; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
ACRYLIC ACID; CHEMICAL RADIATION EFFECTS; DOSE RATES; FABRICATION; POLYACRYLATES; POLYMERIZATION; RADIATION CHEMISTRY
Descriptors DEC
CARBOXYLIC ACIDS; CHEMICAL REACTIONS; CHEMISTRY; ESTERS; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POLYVINYLS; RADIATION EFFECTS