Poly:succinimide, poly:aspartic acid and maleamic acid prepn. without extraneous additives

Continuous prepn. of polymers (I) with recurring succinyl units comprises: (i) mixing (A) maleic anhydride (II) or its deriv. with (B) NH3 (source) or amides of carbonic acid; (ii) conversion to a low mol. -contg. maleic acid derivs. (III) in a first exothermic reaction stage; and (iii) polymerisati...

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Hauptverfasser:	PIRKL, HANS-GEORG, 50679 KOELN, DE, MENZEL, THOMAS., 40732 HILDEN, DE, JOVCIC, DORDE, 51399 BURSCHEID, DE, LIESENFELDER, ULRICH., 50670 KOELN, DE, LEIBERICH, RICARDA., 51069 KOELN, DE, GROTH, TORSTEN. DR., 51061 KOELN, DE, JOENTGEN, WINFRIED. DR., 50769 KOELN, DE, MUELLER, NIKOLAUS. DR., 40789 MONHEIM, DE, WAGNER, PAUL-VERFAHRENS DR., 40597 DUESSELDORF, DE, TRAENCKNER, HANS-JOACHIM. DR., 51375 LEVERKUSEN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON DETERGENT COMPOSITIONS DETERGENTS DYES FATTY ACIDS THEREFROM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	Continuous prepn. of polymers (I) with recurring succinyl units comprises: (i) mixing (A) maleic anhydride (II) or its deriv. with (B) NH3 (source) or amides of carbonic acid; (ii) conversion to a low mol. -contg. maleic acid derivs. (III) in a first exothermic reaction stage; and (iii) polymerisation of (III) in a second stage. The novel features are that: (a) stage (i) is carried out adiabatically and the heat of reaction is used to bring the reaction mixt. to the polymerisation temp. and (b) (III) is at least partly polymerised to (I) in stage (iii). Also claimed is a process for continuous prepn. of maleamic acid (IV) by mixing (II) (deriv.) with NH3 (source) rapidly in less than 2 seconds and reaction in a reactor in which the dwell and temp. ensure (almost) no polymerisation. (A) is (II), its derivs. maleic acid and/or fumaric acid; and (B) is NH3, NH4HCO3, (NH4)2CO3 or ammonia salts and amides or carbonic acid. e.g. urea, isourea (ammonium cyanate) carbamic acid and/or ammonium carbamide. Other monomers may be added continuously to (A, B) e.g. alcohols, opt. unsatd. di- and poly-carboxylic acids, unsatd. monocarboxylic acids etc..