EP 3861042 A1 20210811 - HYDROGEL COMPOSITIONS
Title (en)
HYDROGEL COMPOSITIONS
Title (de)
HYDROGELZUSAMMENSETZUNGEN
Title (fr)
COMPOSITIONS D'HYDROGELS
Publication
Application
Priority
- FR 1859124 A 20181002
- FR 2019052302 W 20190930
Abstract (en)
[origin: WO2020070422A1] The invention concerns a crosslinkable composition comprising: A1) at least one multifunctional isocyanate-terminated urethane prepolymer comprising between 1 and 16 isocyanate functionalities on average, the average functionality being strictly greater than 1, the prepolymer being a product of the reaction of a diisocyanate, a triisocyanate or a polyisocyanate with a functionality strictly greater than 3, with a polyol comprising 1 to 8 hydroxyl groups; and/or A2) at least one mono, di or polyisocyanate and/or an oligoglycerol; with B) at least one macropolyol chosen from: B1) oligoglycerols with an average degree of polymerisation less than or equal to 7, B2) glycerol dendrimers, B3) linear, branched or hyperbranched polyglycerols with a degree of polymerisation greater than or equal to 8, B4) mixtures of hyperbranched polyglycerols and linear, branched or hyperbranched oligoglycerols, with a degree of polymerisation of between 2 and 7, optionally functionalised; and optionally: C) at least one polyol comprising at least two hydroxyl groups; D) at least one mono, di ou polyisocyanate; E) optionally at least one monofunctional alcohol, a mixture of monofunctional alcohols or a monohydroxylated polyether made from ethylene glycol and/or ethylene glycol/propylene glycol, or a mixture of monohydroxylated polyether and monofunctional alcohols; F) at least one catalyst or a combination of catalysts; G) at least one additive chosen from antioxidants, oxygen permeability enhancers, water retention agents, lubricants, compatibilising agents, viscosity modifiers, colouring agents, opacifying agents, antimicrobial agents, therapeutic agents and anti-biofilm bacterial agents; and/or H) at least one agent chosen from UV filters, UV absorbers and blue light filters.
IPC 8 full level
C08G 18/48 (2006.01); C08G 18/10 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C08G 65/00 (2006.01); C08G 65/22 (2006.01); C08L 75/04 (2006.01); C09D 175/04 (2006.01); G02B 1/00 (2006.01); C08G 101/00 (2006.01)
CPC (source: EP US)
A61K 9/06 (2013.01 - US); A61K 47/10 (2013.01 - US); A61K 47/34 (2013.01 - US); A61L 27/18 (2013.01 - US); A61L 27/52 (2013.01 - US); C08G 18/10 (2013.01 - EP); C08G 18/4829 (2013.01 - EP); C08G 18/4862 (2013.01 - EP); C08G 18/73 (2013.01 - EP); C08G 18/755 (2013.01 - EP); C08G 65/33348 (2013.01 - EP); C08L 75/04 (2013.01 - EP); C09D 175/04 (2013.01 - EP); G02B 1/043 (2013.01 - EP); A61L 2430/16 (2013.01 - US); C08G 2110/0091 (2021.01 - EP); C08G 2210/00 (2013.01 - EP); C08G 2650/54 (2013.01 - EP)
Citation (search report)
See references of WO 2020070422A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3086664 A1 20200403; FR 3086664 B1 20211015; EP 3861042 A1 20210811; US 2021369911 A1 20211202; WO 2020070422 A1 20200409
DOCDB simple family (application)
FR 1859124 A 20181002; EP 19795284 A 20190930; FR 2019052302 W 20190930; US 201917282121 A 20190930