PRODUCTION OF COPOLYMER CONSISTING OF MONOALKYL MALEATE AND VINYL ALKYL ETHER

The process involves the free-radical copolymerisation of maleic anhydride and of vinyl alkyl ethers and the subsequent reaction of the copolymer with alkanol and is characterised in that the vinyl alkyl ether component is in excess in the reaction mixture in all phases of the polymerisation, the fr...

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Hauptverfasser: FUERUDEINANTO SHIYUTORAUPU, PAURU NEEGERE, FURANTSU FUROSHIYU, HANSUUHERUMUUTO GERUTSU, FURIIDORITSUHI FUOOGERU, HANSUUYURUGEN RAUBENHAIMAA
Format: Patent
Sprache:eng
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Zusammenfassung:The process involves the free-radical copolymerisation of maleic anhydride and of vinyl alkyl ethers and the subsequent reaction of the copolymer with alkanol and is characterised in that the vinyl alkyl ether component is in excess in the reaction mixture in all phases of the polymerisation, the free-radical copolymerisation is carried out in acetone, and the acetone is removed by distillation at temperatures of up to 70 DEG C during or after the ester formation.