METHOD OF SYNTHESIS OF N-ITACONOYLCHITOSAN Russian patent published in 1998 - IPC

Abstract RU 2123500 C1

FIELD: organic chemistry and technology. SUBSTANCE: method involves addition of dry itaconic anhydride to chitosan solution in acetate buffer at pH 3.5-5.8 and stirring at the room temperature for 0.5-1 h. Synthesized N-itaconoylchitosan has an acylation degree 80%, not less. Method ensures to obtain water-soluble end product which can be used in leather and textile branches. EFFECT: improved method of synthesis. 1 cl, 2 ex

Similar patents RU2123500C1

Title	Year	Author	Number
SKIN TANNAGE PROCESS	1998	Chernetskij V.N. Arkhipov P.P. Lavrent'Eva T.A. Gurova N.P.	RU2129163C1
METHOD FOR PRODUCTION OF HYDROGEL-FORMING AGENT OF CHITOSAN	1996	Chernetskij Vladimir Nikolaevich L'Vov Vjacheslav Leonidovich Nifant'Ev Nikolaj Ehduardovich	RU2099352C1
METHOD FOR PRODUCTION OF WATER SOLUBLE DERIVATIVES OF CHITOSAN	1996	Chernetskij Vladimir Nikolaevich Nifant'Ev Nikolaj Ehduardovich	RU2099351C1
METHOD OF SULFATED CHITOSAN PREPARING	1992	Gamzazade A.I. Nasibov S.M.	RU2048475C1
METHOD OF PREPARING A COSMETIC AGENT FOR SKIN CARE	1997	Khachatrjan Ashot Papikovich Khachatrjan Robert Grishaevich	RU2122397C1
METHOD OF PREPARING CHITOSONIUM GLUTAMATE (VERSIONS)	1997	Chernetskij Vladimir Nikolaevich Nifant'Ev Nikolaj Ehduardovich	RU2124524C1
METHOD OF PRODUCING CHITOSAN DERIVATIVE, HAVING AMPHIPHILIC PROPERTIES	2013	Nazarov Konstantin Sergeevich Lytkin Roman Viktorovich Kadagidze Ehrast Bessarionovich Ul'Janov Aleksej Sergeevich	RU2548003C1
METHOD OF PREPARING CARBOXYL-CONTAINING CHITOSAN DERIVATIVES	0	Mrachkovskaya Tatyana Alekseevna Gamzazade Arif Ismailovich Rogozhin Sergej Vasilevich	SU802290A1
METHOD FOR PRODUCTION OF INSULIN DRUG OF DURABLE ACTION	2002	Lazarev Aleksej Pavlovich Pojarkova Svetlana Alekseevna Lutsiv Vladimir Romanovich Mel'Nik Valerij Nikolaevich Rybachuk Valentina Nikolaevna Stadnik Viktor Ivanovich Vlasenko Nikolaj Nikolaevich Soljanik Ljudmila Pavlovna Sologub Pavel Pavlovich Prudiev Dmitrij Pavlovich Lesik Igor' Pavlovich	RU2252782C2
IONIC MOLECULAR CONJUGATES OF N-ACYLATED DERIVATIVES OF POLY-(2-AMINO-2-DEOXY-D- GLUCOSE) AND POLYPEPTIDES	1996	Shalabaj V. Shalabaj Stiven A. Dzhehkson Frehnsis Ignatious Zhak-P'Er Moro	RU2172323C2

RU 2 123 500 C1

Authors

Chernetskij Vladimir Nikolaevich

Arkhipov Pavel Pavlovich

Dates

1998-12-20—Published

1997-07-04—Filed