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Brevet Année : 2019

HYDROGEL COMPOSITIONS

Résumé

A crosslinkable composition comprises: A1) at least one multifunctional isocyanate-terminated urethane prepolymer comprising between 1 and 16 isocyanate functionalities on average, 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

Domaines

Chimie
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Dates et versions

hal-04338980 , version 1 (12-12-2023)

Identifiants

  • HAL Id : hal-04338980 , version 1

Citer

Fanny Coumes, Jean-Francois Stumbe, Sophie Bistac-Brogly, Jean-Francois Rumigny, Romain Jagu. HYDROGEL COMPOSITIONS. France, Patent n° : 20210369911. 2019. ⟨hal-04338980⟩
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