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1. (WO2020002495) GENERIC METHOD FOR STRUCTURING HYDROGELS
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2020/002495 International Application No.: PCT/EP2019/067137
Publication Date: 02.01.2020 International Filing Date: 27.06.2019
IPC:
C08J 3/075 (2006.01) ,C08J 3/28 (2006.01)
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
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
28
Treatment by wave energy or particle radiation
Applicants:
ALVÉOLE [FR/FR]; 68 Boulevard de Port-Royal 75005 Paris, FR
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE [FR/FR]; 3, rue Michel Ange 75016 PARIS, FR
UNIVERSITÉ DE BORDEAUX [FR/FR]; 35 Place Pey Berland 33000 Bordeaux, FR
Inventors:
STUDER, Vincent; FR
PASTUREL, Aurélien; FR
Agent:
OSHA LIANG; 2, rue de la Paix 75002 PARIS, FR
Priority Data:
185581227.06.2018FR
Title (EN) GENERIC METHOD FOR STRUCTURING HYDROGELS
(FR) METHODE GENERIQUE POUR LA STRUCTURATION D'HYDROGELS
Abstract:
(EN) A subtractive method for structuring a hydrogel, comprising the following steps: producing a hydrogel layer containing benzophenone (3) on a substrate (6), the hydrogel not having any photocleavable group; bringing the hydrogel layer into contact with an oxygen tank (4); selectively illuminating the hydrogel layer with a light (5) capable of activating the benzophenone in order to convert the illuminated zone of the hydrogel layer into a liquid; and eliminating the liquid.
(FR) Procédé soustractif pour la structuration d'un hydrogel comprenant les étapes suivantes: réaliser sur un substrat (6) une couche d'hydrogel contenant une benzophénone (3), l'hydrogel ne possédant pas de groupement photo - clivable; mettre en contact la couche d'hydrogel avec un réservoir d'oxygène (4); éclairer sélectivement la c ouche d'hydrogel avec une lumière (5) capable d'activer la benzophénone, pour transformer la zone éclairée de la couche d'hydrogel en un liquide; et éliminer le liquide.
front page image
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: French (FR)
Filing Language: French (FR)