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1. (WO2019064231) HIGH MOLECULAR WEIGHT CHITOSAN, PROCESS FOR OBTAINING AND USES THEREOF
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/064231 International Application No.: PCT/IB2018/057514
Publication Date: 04.04.2019 International Filing Date: 27.09.2018
IPC:
C08B 37/08 (2006.01) ,C08L 5/08 (2006.01) ,A61L 27/52 (2006.01) ,A61L 31/04 (2006.01) ,C08J 3/075 (2006.01) ,A61K 9/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
37
Preparation of polysaccharides not provided for in groups C08B1/-C08B35/110; Derivatives thereof
08
Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
5
Compositions of polysaccharides or of their derivatives not provided for in group C08L1/ or C08L3/142
08
Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
27
Materials for prostheses or for coating prostheses
50
Materials characterised by their function or physical properties
52
Hydrogels or hydrocolloids
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31
Materials for other surgical articles
04
Macromolecular materials
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3
Processes of treating or compounding macromolecular substances
02
Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
03
in aqueous media
075
Macromolecular gels
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
Applicants:
ASSOCIATION FOR THE ADVANCEMENT OF TISSUE ENGINEERING AND CELL BASED TECHNOLOGIES & THERAPIES (A4TEC) - ASSOCIAÇÃO [PT/PT]; UNIV DO MINHO DEP-3B S RESEARCH GROUP CAMPOS DE GUALTAR 4710-057 BRAGA, PT
Inventors:
LÓPEZ CEBRAL, Rita; PT
QUINTEROS LOPES HENRIQUEZ DA SILVA, Tiago José; PT
ANTUNES CORREIA DE OLIVEIRA, Joaquim Miguel; PT
NOVOA CARBALLAL, Ramón; PT
GONÇALVES DOS REIS, Rui Luís; PT
Agent:
TEIXEIRA DE CARVALHO, Anabela; PT
Priority Data:
11030927.09.2017PT
Title (EN) HIGH MOLECULAR WEIGHT CHITOSAN, PROCESS FOR OBTAINING AND USES THEREOF
(FR) CHITOSANE DE POIDS MOLÉCULAIRE ÉLEVÉ, SON PROCÉDÉ D'OBTENTION ET SES UTILISATIONS
Abstract:
(EN) The present disclosure relates to a method for obtaining a high molecular weight chitosan with a lower acetylation degree and its use in human or veterinarian medicine. More specifically, to the obtaining of this biomaterial by means of a simpler process, with reduced energy costs, when compared with conventional procedures.
(FR) La présente invention concerne un procédé d'obtention d'un chitosane de poids moléculaire élevé ayant un degré d'acétylation inférieur et son utilisation en médecine humaine ou vétérinaire. L'invention concerne plus spécifiquement l'obtention de ce biomatériau au moyen d'un procédé plus simple, avec des coûts énergétiques réduits, comparé à des procédures classiques.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)