CA2203632A1 - A chitosan polymer having a specific degree of acetylation - Google Patents
A chitosan polymer having a specific degree of acetylationInfo
- Publication number
- CA2203632A1 CA2203632A1 CA 2203632 CA2203632A CA2203632A1 CA 2203632 A1 CA2203632 A1 CA 2203632A1 CA 2203632 CA2203632 CA 2203632 CA 2203632 A CA2203632 A CA 2203632A CA 2203632 A1 CA2203632 A1 CA 2203632A1
- Authority
- CA
- Canada
- Prior art keywords
- chitosan
- acetylation
- chitosans
- degree
- molecular weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Nutrition Science (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Inorganic Chemistry (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9403905-4 | 1994-11-14 | ||
SE9403905A SE9403905D0 (sv) | 1994-11-14 | 1994-11-14 | New formulations |
PCT/SE1995/001342 WO1996020730A1 (en) | 1994-11-14 | 1995-11-13 | A chitosan polymer having a specific degree of acetylation |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2203632A1 true CA2203632A1 (en) | 1996-07-11 |
Family
ID=20395954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2203632 Abandoned CA2203632A1 (en) | 1994-11-14 | 1995-11-13 | A chitosan polymer having a specific degree of acetylation |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0792330A1 (ja) |
JP (1) | JPH10509207A (ja) |
AU (1) | AU710769B2 (ja) |
CA (1) | CA2203632A1 (ja) |
FI (1) | FI972056A (ja) |
IS (1) | IS4469A (ja) |
NO (1) | NO972172D0 (ja) |
SE (1) | SE9403905D0 (ja) |
WO (1) | WO1996020730A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6716970B2 (en) | 2000-04-21 | 2004-04-06 | Adjuvant Pharmaceuticals, Llc | Water soluble, randomly substituted partial N-partial O-acetylated chitosan, preserving compositions containing chitosan, and processes for making thereof |
US20020018732A1 (en) * | 2000-04-21 | 2002-02-14 | Hung William M. | Preserving compositions containing chitosan and processes for making water soluble O-acetylated chitosan and chitosan |
GB0315632D0 (en) | 2003-07-04 | 2003-08-13 | West Pharm Serv Drug Res Ltd | Pharmaceutical formulations |
US7125967B2 (en) | 2003-10-08 | 2006-10-24 | Adjuvant Pharmaceuticals, Llc | Water-soluble chitosan having low endotoxin concentration and methods for making and using the same |
US20060287278A1 (en) * | 2005-06-21 | 2006-12-21 | Zhenze Hu | Method for improving water solubility of chitosan |
FR3016882A1 (fr) | 2014-01-30 | 2015-07-31 | Sofradim Production | Procede de preparation de chitosane a haut degre d’acetylation |
EP3034612A1 (en) * | 2014-12-16 | 2016-06-22 | Greenaltech, S.L. | Chitin and chitosan producing methods |
EP3372234B1 (en) * | 2015-11-04 | 2021-09-29 | Stelic Institute & Co., Inc. | Complex comprising rnai molecule and n-acetylated chitosan |
WO2024054707A2 (en) | 2022-09-08 | 2024-03-14 | Luna Labs Usa, Llc | Layer-by-layer delivery of active agents |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873092A (en) * | 1987-05-21 | 1989-10-10 | Murata Kikai Kabushiki Kaisha | Slow-releasing preparation |
GB8904370D0 (en) * | 1989-02-25 | 1989-04-12 | Cosmas Damian Ltd | Liquid delivery compositions |
-
1994
- 1994-11-14 SE SE9403905A patent/SE9403905D0/xx unknown
-
1995
- 1995-11-13 JP JP8517163A patent/JPH10509207A/ja not_active Ceased
- 1995-11-13 WO PCT/SE1995/001342 patent/WO1996020730A1/en not_active Application Discontinuation
- 1995-11-13 AU AU39433/95A patent/AU710769B2/en not_active Ceased
- 1995-11-13 EP EP95937278A patent/EP0792330A1/en not_active Withdrawn
- 1995-11-13 CA CA 2203632 patent/CA2203632A1/en not_active Abandoned
-
1997
- 1997-04-22 IS IS4469A patent/IS4469A/is unknown
- 1997-05-12 NO NO972172A patent/NO972172D0/no not_active Application Discontinuation
- 1997-05-14 FI FI972056A patent/FI972056A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
JPH10509207A (ja) | 1998-09-08 |
FI972056A0 (fi) | 1997-05-14 |
IS4469A (is) | 1997-04-22 |
SE9403905D0 (sv) | 1994-11-14 |
FI972056A (fi) | 1997-05-14 |
WO1996020730A1 (en) | 1996-07-11 |
NO972172L (no) | 1997-05-12 |
AU710769B2 (en) | 1999-09-30 |
EP0792330A1 (en) | 1997-09-03 |
NO972172D0 (no) | 1997-05-12 |
AU3943395A (en) | 1996-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Dead |