Show metadata Hide metadata

(19)

(11)

2 479 590

(13)

(51)

IPC

C08B37/08(2006-01-01)

(21) (22)

Application

2011141448/13, 2011-10-12

(24)

Start date

2011-10-12

(22)

Actual filing date

2011-10-12

(45)

Published

2013-04-20

(72)

Inventor

Slivkin Aleksej IvanovichLapenko Viktor Lavren'EvichSlivkin Denis AlekseevichBykov Valerij AlekseevichBychuk Aleksandr Ivanovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet" VpoObshchestvo S Ogranichennoj Otvetstvennost'Ju Innovatsii"

METHOD TO PRODUCE WATER-SOLUBLE OLIGOMER HOMOLOGS OF CHITOSANS IN HETEROGENEOUS SYSTEM Russian patent published in 2013 - IPC C08B37/08

Abstract RU 2479590 C1

FIELD: biotechnologies.

SUBSTANCE: method includes depolymerisation of a high-molecular chitosan with hydrogen peroxide. The process of chitosan depolymerisation is carried out in a double-phase system. The solid phase is activated chitosan with Mav = 450-650 kDa and the average particle size of 0.05-0.20 mm. The liquid phase is a water solution of H₂O₂ with concentration of H₂O₂ in a reaction system equal to 1-7%. The reaction is carried out for 120-180 minutes at 70°C. Then phase separation of produced chitosan homologs is carried out by means of filtration via paper or textile surface of the produced reaction mixture. The produced filtrate contains water-soluble chitosan oligomers.

EFFECT: invention makes it possible to quantitatively control extent of conversion of an initial high-molecular chitosam into oligomer and low-molecular structures of its homologs.

1 tbl, 1 ex

Similar patents RU2479590C1

Title	Year	Author	Number
PHARMACOLOGICAL AGENT POSSESSING ANTITUBERCULOSIS ACTIVITY	2011	Lapenko Viktor Lavren'Evich Parkhisenko Jurij Aleksandrovich Slivkin Denis Alekseevich Bychuk Aleksandr Ivanovich Ehfron Galina Viktorovna Bulynin Viktor Viktorovich Slivkin Aleksej Ivanovich	RU2469711C1
METHOD FOR PRODUCING POLYMER CONJUGATE OF ISONICOTINIC ACID HYDRAZONE	2010	Kupreev Nikolaj Iosifovich Kuznetsov Vjacheslav Alekseevich Bolgov Aleksej Aleksandrovich Slivkin Aleksej Ivanovich	RU2454226C1
POLYMER COMPLEX OF CHITOSAN WITH PLATINUM TETRACHLORIDE	2009	Parkhisenko Jurij Aleksandrovich Slivkin Aleksej Ivanovich Lapenko Viktor Lavrent'Evich Khoviv Aleksandr Mikhajlovich Bychuk Aleksandr Ivanovich Bulynin Viktor Viktorovich Sizykh Aleksej Alekseevich	RU2426547C1
METHOD FOR PRODUCING LOW-MOLECULAR CHITOSAN	2010	Kupreev Nikolaj Iosifovich Bykovskij Dmitrij Vladimirovich Kuznetsov Vjacheslav Alekseevich Vael Shekhta Matvalli Ehl'Sajed Elazab	RU2417088C1
METHOD FOR PRODUCING LOW-MOLECULAR CHITOSAN AND CHITOSAN OLIGOMERS	2016	Shagdarova Balzhima Tsyrendorzhievna Lopatin Sergej Aleksandrovich Konovalova Mariya Vladimirovna Ilina Alla Viktorovna Albulov Aleksej Ivanovich Varlamov Valerij Petrovich	RU2627870C1
METHOD FOR PREPARING CHITOSAN SOLUBLE FORMS	2001	Komarov B.A. Albulov A.I.	RU2215749C2
METHOD OF PRODUCING LOW-MOLECULAR OLIGOMERIC CHITOSAN AND DERIVATIVES THEREOF	2018	Apryatina Kristina Viktorovna Gorshenin Mikhail Konstantinovich Smirnova Larisa Aleksandrovna	RU2703437C1
METHOD OF PRODUCING LOW-MOLECULAR CHITOSAN IN SALT-FREE MEDIUM VIA ENZYMATIC POLYMERISATION	2009	Kulikov Sergej Nikolaevich Tjurin Jurij Aleksandrovich Fassakhov Rustehm Salakhovich Il'Ina Alla Viktorovna Varlamov Valerij Petrovich Albulov Aleksej Ivanovich	RU2425844C2
ANTIPLATELET AGENT	2017	Varlamov Valerij Petrovich Drozd Natalya Nikolaevna Ilina Alla Viktorovna Shagdarova Balzhima Tsyrendorzhievna Logvinova Yuliya Sergeevna Khantimirova Lejsan Maratovna	RU2647366C1
COMPOSITIONS OF PARTIALLY DEACETYLATED CHITIN DERIVATIVES	2006	Dzhislejzon Jokhannes Ajnarsson Jon M. Chuen Khau Ng Barke Sven	RU2421467C2

RU 2 479 590 C1

Authors

Slivkin Aleksej Ivanovich

Lapenko Viktor Lavren'Evich

Slivkin Denis Alekseevich

Bykov Valerij Alekseevich

Bychuk Aleksandr Ivanovich

Dates

2013-04-20—Published

2011-10-12—Filed