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US 2019/0168174 A1Published application
Porous membranes
AssigneeSolvay Specialty Polymers Italy S.P.A.
InventorsEmanuele DI NICOLO', Silvia Rita PETRICCI, Pasquale CAMPANELLI, Lionel DE BEAUFFORT
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Abstract
The present invention relates to a porous membrane, process for the manufacture thereof and uses thereof.
Claims15
A porous membrane comprising at least one layer obtained from a composition (C), said composition (C) comprising:
- at least one F-TPU polymer, wherein said F-TPU polymer is a fluorinated polyurethane, polymer comprising recurring units derived from:
- optionally, at least one monomer (a), wherein monomer (a) is a diol selected from the group consisting of poly-ether type diols, poly-ester type diols, polybutadien-diols and polycarbonate-diols;
- at least one monomer (b), wherein monomer (b) is a hydroxy-terminated (per)fluoropolyether polymer;
- at least one monomer (c), wherein monomer (c) is an aromatic, aliphatic or cycloaliphatic diisocyanate;
- and
- at least one monomer (d), wherein monomer (d) is an aliphatic, cycloaliphatic or aromatic diol having from 1 to 14 carbon atoms;
- and
- optionally at least one further ingredient.
5 more elements
A liquid composition (CL) comprising at least one F-TPU polymer and at least one polar aprotic solvent, wherein said F-TPU polymer is a fluorinated polyurethane polymer comprising recurring units derived from:
- optionally, at least one monomer (a), wherein monomer (a) is a diol selected from the group consisting of poly-ether type diols, poly-ester type diols, polybutadien-diols and polycarbonate-diols;
- at least one monomer (b), wherein monomer (b) is a hydroxy-terminated (per)fluoropolyether polymer;
- at least one monomer (c), wherein monomer (c) is an aromatic, aliphatic or cycloaliphatic diisocyanate;
- and
- at least one monomer (d), wherein monomer (d) is an aliphatic, cycloaliphatic or aromatic diol having from 1 to 14 carbon atoms.
2 more elements
Dependencies are inferred from the claim text.