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Pub. No.:    WO/1997/039781    International Application No.:    PCT/GB1997/001098
Publication Date: 30.10.1997 International Filing Date: 21.04.1997
Chapter 2 Demand Filed:    13.11.1997    
A61L 15/28 (2006.01), A61L 15/60 (2006.01), A61L 26/00 (2006.01)
Applicants: INNOVATIVE TECHNOLOGIES LIMITED [GB/GB]; Road Three, Winsford Industrial Estate, Winsford, Cheshire CW7 3PD (GB) (For All Designated States Except US).
QIN, Yimin [CN/GB]; (GB) (For US Only).
GILDING, Keith, Dennis [GB/GB]; (GB) (For US Only)
Inventors: QIN, Yimin; (GB).
GILDING, Keith, Dennis; (GB)
Agent: ATKINSON, Peter, Birch; Marks & Clerk, Sussex House, 83-85 Mosley Street, Manchester M2 3LG (GB)
Priority Data:
9608222.7 20.04.1996 GB
Abstract: front page image
(EN)A method of producing a dehydrated hydrogel comprises dispersing fibres into an aqueous solution of a hydrogel precursor material incorporating a plasticiser, the fibres incorporating cations which are capable of cross-linking said precursor material to form a hydrogel, and freeze drying the mixture thus produced to provide a dehydrated hydrogel which incorporates said fibres, the dehydrated hydrogel being cross-linked by said cations.
(FR)La présente invention concerne un procédé de production d'un hydrogel déshydraté. Ce procédé consiste d'abord à disperser des fibres dans une solution aqueuse d'une matière précurseur de l'hydrogel et incluant un émollient, les fibres incluant des cations capables de réticuler la matière précurseur considérée pour former un hydrogel. Le procédé consiste ensuite à lyophiliser le mélange ainsi obtenu pour produire un hydrogel déshydraté qui inclue les fibres considérées, l'hydrogel déshydraté étant réticulé par les cations considérés.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU.
African Regional Intellectual Property Organization (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)