SU419529A1 - - Google Patents
Info
- Publication number
- SU419529A1 SU419529A1 SU1636836A SU1636836A SU419529A1 SU 419529 A1 SU419529 A1 SU 419529A1 SU 1636836 A SU1636836 A SU 1636836A SU 1636836 A SU1636836 A SU 1636836A SU 419529 A1 SU419529 A1 SU 419529A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chitosan
- solution
- derivatives
- lactone
- water
- Prior art date
Links
- 229920001661 Chitosan Polymers 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 2
- 239000012736 aqueous medium Substances 0.000 claims description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 150000002596 lactones Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- DSLZVSRJTYRBFB-LLEIAEIESA-N D-glucaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O DSLZVSRJTYRBFB-LLEIAEIESA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1636836A SU419529A1 (enrdf_load_stackoverflow) | 1971-03-26 | 1971-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1636836A SU419529A1 (enrdf_load_stackoverflow) | 1971-03-26 | 1971-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU419529A1 true SU419529A1 (enrdf_load_stackoverflow) | 1974-03-15 |
Family
ID=20469669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1636836A SU419529A1 (enrdf_load_stackoverflow) | 1971-03-26 | 1971-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU419529A1 (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436731A (en) | 1981-04-06 | 1984-03-13 | Etablissement Texcontor | Semi-synthetic chitin derivative, the process for its preparation, and therapeutic compositions which contain it as active principle |
| EP0563013A3 (enrdf_load_stackoverflow) * | 1992-03-27 | 1994-04-20 | Ciba Geigy Ag | |
| US5708152A (en) * | 1992-03-27 | 1998-01-13 | Ciba Specialty Chemicals Corporation | N-substituted chitosan derivatives in a process for their preparation |
-
1971
- 1971-03-26 SU SU1636836A patent/SU419529A1/ru active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436731A (en) | 1981-04-06 | 1984-03-13 | Etablissement Texcontor | Semi-synthetic chitin derivative, the process for its preparation, and therapeutic compositions which contain it as active principle |
| EP0563013A3 (enrdf_load_stackoverflow) * | 1992-03-27 | 1994-04-20 | Ciba Geigy Ag | |
| US5708152A (en) * | 1992-03-27 | 1998-01-13 | Ciba Specialty Chemicals Corporation | N-substituted chitosan derivatives in a process for their preparation |
| US5977330A (en) * | 1992-03-27 | 1999-11-02 | Ciba Specialty Chemicals Corporation | Crosslinked N-substituted chitosan derivatives |
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