METHOD FOR PREPARING 1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE POLYMER Russian patent published in 2004 - IPC

Abstract RU 2223976 C2

FIELD: organic chemistry, chemical technology, polymers. SUBSTANCE: invention relates for preparing 1,2-dihydro-2,2,4-trimethylquinoline polymer. Polymer is prepared by condensation of aniline with acetone excess at 100-120 C, under pressure, in anhydrous medium, in the presence of hydrochloric acid that is mixed firstly with aniline and water is distilled off in the presence of nonpolar solvent. Condensation is carried out in the content of chloride ions 2.3-3.5 wt.-% up to the residual aniline concentration 8-15 wt.-%. Polymerization is carried out at 90-95 C in the presence of hydrochloric acid. Prepared product is neutralized, extracted with nonpolar solvent and polymer and monomer fraction are separated from the solvent. Invention provides retaining high quality of product. Polymer is used in rubber-technical industry as a stabilizing agent against thermooxidative, atmosphere and ozone ageing of caoutchouc-base rubber. EFFECT: simplified process, enhanced safety and ecology. 3 cl, 1 tbl, 40 ex

Similar patents RU2223976C2

Title	Year	Author	Number
METHOD FOR PRODUCTION OF 1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE POLYMER	2003	Selivanov N.V. Maslov N.S. Zharikov L.K. Tikhonova G.G.	RU2245346C1
METHOD OF PREPARING 1,2-DIHYDRO-2,2,4-TRIMETHYL QUINOLINE POLYMER	1997	Zheltukhin I.A. Zharikov L.K. Tikhonova G.G. Kapitonov O.B.	RU2132338C1
METHOD FOR PREPARING 1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE POLYMER	2002	Tikhonova G.G. Zharikov L.K. Ekaterinina L.A. Legudeva V.I. Khitrov N.V.	RU2255943C2
METHOD OF PREPARING 1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE	1998	Zharikov L.K. Tikhonova G.G. Trofimov V.N.	RU2157387C2
METHOD OF PRODUCING OLIGOMER 1,2-DIHYDRO-2,2,4 -TRIMETHYLQUINOLINE	1991	Shkuro V.G. Shkuro A.G. Militsin I.A. Zharikov L.K. Chikurov V.V. Tikhonova G.G. Kapitonov O.B. Sibirtsev B.A. Nenashev A.O. Kavun S.M. Kozlov V.M.	RU2009148C1
METHOD FOR PRODUCTION OF OLIGOMERIC 1,2-DIHYDRO-2,2,4-TRYMETHYL QUINOLINE	0	Shkuro Valentin Grigorevich Shkuro Anatolij Grigorevich Militsin Igor Anatolevich Zharikov Lev Klavdianovich Chikurov Vladimir Vasilevich Tikhonova Galina Grigorevna Kapitonov Oleg Borislavovich Sibirtsev Boris Aleksandrovich Nikiforov Nikolaj Evgenevich Zheltukhin Igor Ageevich	SU1826974A3
METHOD FOR PRODUCING POLYMER OF 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE	0	Panfilov Valerij Yakovlevich Zharikov Lev Klavdianovich Chikurov Vladimir Vasilevich Shkuro Valentin Grigorevich Militsin Igor Anatolevich	SU1776663A1
PROCESS FOR PRODUCING RUBBER STOCK STABILIZER INCLUDING POLYMERIC 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE AND 6-ETHOXY-2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE	0	Zorin Vladimir Petrovich Stepanskij Mark Lvovich Bondarev Nikolaj Alekseevich Kolesnikov Sergej Efimovich	SU952843A1
METHOD OF SYNTHESIS OF POLYMERIZED 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE	1992	Panfilov V.Ja. Zharikov L.K. Chikurov V.V. Shkuro V.G. Militsin I.A.	RU2065456C1
METHOD FOR PRODUCING MIXTURE OF METHYL-BENZYLATED PHENOLS	2023	Niyazov Nikolai Arkadievich Gainullin Khaidar Khamitovich Khabibullina Gulnur Airatovna	RU2802029C1

RU 2 223 976 C2

Authors

Zharikov L.K.

Tikhonova G.G.

Gordeladze A.A.

Nikiforov N.E.

Matveeva T.V.

Dates

2004-02-20—Published

2002-04-08—Filed