Patenton — panteon of patents

(19)

RU

(11)

2 191 782

(13)

C2

(51)

IPC

(21) (22)

Application

2000124136/04, 2000-09-21

(24)

Start date

2000-09-21

(22)

Actual filing date

2000-09-21

(45)

Published

2002-10-27

(72)

Inventor

Ponedel'Kina I.Ju.Khasanov A.G.Kunafin M.S.Mrikh O.V.Bashkatov S.A.Dzhemilev U.M.Timerbulatov V.M.Parfenova T.I.Sufijarova R.Sh.Kajumov F.A.Fajazov R.R.Sufijarov I.F.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF MODIFIED HYALURONIC ACID PREPARING Russian patent published in 2002 - IPC

Abstract RU 2191782 C2

FIELD: biotechnology, biochemistry. SUBSTANCE: invention describes method of preparing chemically modified hyaluronic acid that involves activation of carboxyl groups of hyaluronic acid with 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide and reaction of formed O-acylurea with 5-aminosalicylic acid aqueous suspension at initial temperature of reaction 40 C for 2-4 h and the following purification of polymeric amide by dialysis, with aluminium oxide and precipitation with ethyl alcohol. Depending on time of reaction carrying out hyaluronic acid is synthesized with different degree of substitution of carboxyl groups. Films made of modified polysaccharide can be used both biomaterial in abdominal surgery for protection of anastomosis in intestine resection and for and for impregnation of suture material (surgery threads), artificial prostheses and so on. EFFECT: improved method of preparing, valuable properties. 2 ex

Similar patents RU2191782C2

Title Year Author Number
METHOD FOR PROTECTING ANASTOMOSIS AT INTESTINAL RESCTIONS 2000
  • Kunafin M.S.
  • Khasanov A.G.
  • Mrikh O.V.
  • Ponedel'Kina I.Ju.
  • Bashkatov S.A.
  • Dzhemilev U.M.
  • Timerbulatov V.M.
  • Kajumov F.A.
  • Fajazov R.R.
  • Sufijarov I.F.
 RU2192256C2
HYALURONIC ACID DERIVATIVES OF LOWERED BIODEGRADABILITY 2007
  • Ponedel'Kina Irina Jur'Evna
  • Saitgalina Ehl'Vira Azamatovna
  • Lukina Elena Sergeevna
  • Odinokov Viktor Nikolaevich
  • Dzhemilev Usein Memetovich
 RU2350625C2
METHOD FOR PROPHYLAXIS OF REOCCLUSIONS IN CASE OF OPERATIONS CONDUCTED UPON THE MAIN VESSELS 1999
  • Karabanov Ju.R.
  • Kamalov A.R.
  • Ponedel'Kina I.Ju.
  • Bashkatov S.A.
  • Dzhemilev U.M.
  • Plechev V.V.
  • Gataullin N.G.
  • Latypov R.Sh.
  • Rakhmatullin A.S.
  • Izhbul'Din R.I.
  • Enikeev D.A.
  • Shchekin S.V.
 RU2185171C2
METHOD OF PREVENTING ASEPTIC INFLAMMATION DURING OPERATIONS ON GREAT VESSELS 1999
  • Karabanov Ju.R.
  • Kamalov A.R.
  • Ponedel'Kina I.Ju.
  • Bashkatov S.A.
  • Dzhemilev U.M.
  • Plechev V.V.
  • Gataullin N.G.
  • Puchkov A.A.
  • Rakhmatullin A.S.
  • Izhbul'Din R.I.
  • Enikeev D.A.
  • Shumkin A.M.
 RU2180846C2
CONJUGATE OF HYALURONIC ACID AND NOVOCAINE WITH AMPHOTERIC PROPERTIES 2011
  • Ponedel'Kina Irina Jur'Evna
  • Lukina Elena Sergeevna
  • Petrenko Elena Gennad'Evna
 RU2473351C2
METHOD OF SYNTHESIS OF 1- AND 2-CHLOROADAMANTANE FROM 1- AND 2-ADAMANTANOL 2000
  • Khusnutdinov R.I.
  • Latypov V.N.
  • Shchadneva N.A.
  • Bajguzina A.R.
  • Dzhemilev U.M.
 RU2178400C2
METHOD FOR OBTAINING PROSTHESES OF BLOOD VESSELS 2001
  • Ponedel'Kina I.Ju.
  • Sibagatullin N.G.
  • Bashkatov S.A.
  • Dzhemilev U.M.
  • Plechev V.V.
  • Gataullin N.G.
  • Abu Khashum Madzhid Makhmud
  • Sufijarova R.Sh.
  • Parfenova T.I.
 RU2241414C2
METHOD OF PREPARING 1-ADAMANTYLALKYL ETHERS 1998
  • Dzhemilev U.M.
  • Khusnutdinov R.I.
  • Shchadneva N.A.
  • Malikov A.I.
 RU2145593C1
PRODUCTION METHOD OF LOW-WATER-SOLUBLE HARD MATERIALS BASED ON CARBOXYL-CONTAINING POLYSACCHARIDES MODIFIED WITH AMINOSALICYLIC ACID 2007
  • Ponedel'Kina Irina Jur'Evna
  • Sufijarov Il'Dar Fanusovich
  • Lukina Elena Sergeevna
  • Saitgalina Ehl'Vira Azamatovna
  • Odinokov Viktor Nikolaevich
  • Dzhemilev Usein Memetovich
 RU2343932C1
WOOD POWDER HYDROPHOBIZATION METHOD 1999
  • Sangalov Ju.A.
  • Il'Jasova A.I.
  • Krasulina N.A.
  • Antonova N.E.
  • Latypov F.Sh.
 RU2158193C1

RU 2 191 782 C2

Authors

Ponedel'Kina I.Ju.

Khasanov A.G.

Kunafin M.S.

Mrikh O.V.

Bashkatov S.A.

Dzhemilev U.M.

Timerbulatov V.M.

Parfenova T.I.

Sufijarova R.Sh.

Kajumov F.A.

Fajazov R.R.

Sufijarov I.F.

Dates

2002-10-27—Published

2000-09-21—Filed

read Similar patents