PROCEDE DE PRODUCTION DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE POLYMERISEE

L'INVENTION CONCERNE UN PROCEDE DE PRODUCTION DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE POLYMERISEE.UN POLYMERE DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE CONTENANT AU MOINS 25 EN POIDS DU DIMERE EST PREPARE EFFICACEMENT PAR POLYMERISATION DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE (MONOMERE) EN PRE...

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1. Verfasser:	TAKASHI KOJIMA, EIZO OKINO ET RYOZO ISHIMOTO
Format:	Patent
Sprache:	fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS HETEROCYCLIC COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:	L'INVENTION CONCERNE UN PROCEDE DE PRODUCTION DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE POLYMERISEE.UN POLYMERE DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE CONTENANT AU MOINS 25 EN POIDS DU DIMERE EST PREPARE EFFICACEMENT PAR POLYMERISATION DE 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLEINE (MONOMERE) EN PRESENCE D'ACIDE CHLORHYDRIQUE DONT LA CONCENTRATION VA DE 15 A 25 EN POIDS, LA QUANTITE D'ACIDE CHLORHYDRIQUE ETANT DE 0,2 A 0,5 MOLE PAR MOLE DU TOTAL DU MONOMERE ET DES IMPURETES AMINEES QUE RENFERME LE MONOMERE.LE POLYMERE EST UTILE COMME ANTIOXYDANT POUR CAOUTCHOUC. 2,2,4-Trimethyl-1,2-dihydroquinoline polymer containing 25% by weight or more of the dimer is effectively prepared by the polymerization of 2,2,4-trimethyl-1,2-dihydroquinoline monomer in the presence of hydrochloric acid, the concentration of hydrochloric acid being from 15 to 25% by weight, and the amount of hydrochloric acid being 0.2 to 0.5 mole per mole of the total of the monomer and impurity amines contained in the monomer. The polymer is useful as an antioxidant for rubber.