http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0649437-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c98ff0c57865a6578f7a1146165309f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_45e289beaf557bbdf37a08e7daf67b73 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N59-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K8-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61Q15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B37-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K8-736 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N59-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B37-08 |
| filingDate | 1994-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1998-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc57801cb5f16b458af5cf15d9b23b0b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_138fcd2e2e7ddeae0d19f2a487d7de3a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab509a9da1fbe850c15e4a2d8c4c38cd |
| publicationDate | 1998-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0649437-B1 |
| titleOfInvention | Process for the preparation of iodinated biopolymers having disinfectant and cicatrizing activity, and the iodinated biopolymers obtainable thereby |
| abstract | PCT No. PCT/IT94/00052 Sec. 371 Date Jan. 3, 1995 Sec. 102(e) Date Jan. 3, 1995 PCT Filed Apr. 28, 1994 PCT Pub. No. WO94/26788 PCT Pub. Date Nov. 24, 1994Process for the preparation of complexes of iodine with chitosan or derivatives thereof, and the iodinated compounds thus obtainable. Said compounds take form of powders, which may contain over 60% of iodine in its elementary form. In a dry state the iodine bound to the chitosan or derivatives thereof does not sublimate. If the percentage content of iodine does not exceed 50 % (by weight), said powders can be dissolved in aqueous solvents of an acid type, such as, for example, diluted acetic acid or glutamic acid. Said solutions are compatible with addition of surfactants, preferably of a non-ionic type, which improve the solubility of the chitosan-iodine complex. Solutions with identical characteristics can, alternatively, be prepared by solubilizing, heating if necessary the iodine in a suitable surfactant, preferably non-ionic, and adding this solution under rapid stirring to the chitosan derivatives thereof, dissolved in water, optionally in the presence of acids or salts. Alternatively, the chitosan or derivatives thereof in a dry state can be added to the solution of iodine in surfactant which rapidly absorbs onto the solid, forming the chitosan-iodine complexes. This material suspended in water or in acid solutions, preferably acetic acid or glutamic acid, solubilizes rapidly. The complexes of iodine with chitosan or derivatives thereof, in the form of aspersable powders, solutions or ointments, thanks to their disinfectant and cicatrizing properties, can be used in the field of surgery post-operative treatment and more generally speaking as products for topical use for medication of wounds and disinfectation of the skin. Another area of interest in which the complexes can be used as an active principle is the field of cosmetics. |
| priorityDate | 1993-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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