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.)
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Kao Corp
Original Assignee
Kao Corp
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Publication date
Application filed by Kao CorpfiledCriticalKao Corp
Priority to ES539216ApriorityCriticalpatent/ES8602042A3/en
Publication of ES539216A0publicationCriticalpatent/ES539216A0/en
Publication of ES8602042A3publicationCriticalpatent/ES8602042A3/en
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(AREA)
Abstract
The process comprises dispersion and suspension of aq. acrylate soln. obtd. through neutralisation of acrylic acid with alkali metal hydroxide, minimum 40 per cent by weight concn., containing polymerisation initiator of free radical type, soluble in water. The solvent used is aliphatic hydrocarbon such as n-hexane in the presence of a nonionic surfactant, such as sorbitan monoester, HLB index 3-6. The prod. is in powder form and water-absorbent.
ES539216A1984-12-281984-12-28Preparation of alkali metal acrylate polymer
ExpiredES8602042A3
(en)