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Fluorinated polyurethane composition
An aqueous composition comprising: (A) at least one functional fluorinated polymer [polymer (F)] selected from: a fluorinated ionizable polyurethane polymer [polymer (PUR)] comprising at least one fluorinated block comprising a (per)fluoropolyoxyalkylene chain [chain (ROF)] and at least one functional block comprising a hydrocarbon chain [chain (RH)] optionally comprising one or more aromatic or cycloaliphatic groups, said chain (RH) comprising at least one ionizable group, said blocks being linked by urethane moieties having formula (I) wherein E is a divalent hydrocarbon group, linear or branched, optionally comprising one or more cycloaliphatic or aromatic groups, and a fluorinated polymer [polymer (P)] comprising one or more perfluoroalkyl chains [chain (RF)] linked by one or more ester moieties having formula (II) and/or urethane moieties having formula (III) and/or urea moieties having formula (IV) (B) at least one functional hydrogenated polymer [polymer (H)] different from said polymer (F), said polymer (H) comprising at least one functional group; (C) at least one cross-linking agent; wherein the weight ratio of the polymer (F) to the polymer (H) is higher than 0.75.
Fluorinated polyurethane composition
An aqueous composition comprising: (A) at least one functional fluorinated polymer [polymer (F)] selected from: a fluorinated ionizable polyurethane polymer [polymer (PUR)] comprising at least one fluorinated block comprising a (per)fluoropolyoxyalkylene chain [chain (ROF)] and at least one functional block comprising a hydrocarbon chain [chain (RH)] optionally comprising one or more aromatic or cycloaliphatic groups, said chain (RH) comprising at least one ionizable group, said blocks being linked by urethane moieties having formula (I) wherein E is a divalent hydrocarbon group, linear or branched, optionally comprising one or more cycloaliphatic or aromatic groups, and a fluorinated polymer [polymer (P)] comprising one or more perfluoroalkyl chains [chain (RF)] linked by one or more ester moieties having formula (II) and/or urethane moieties having formula (III) and/or urea moieties having formula (IV) (B) at least one functional hydrogenated polymer [polymer (H)] different from said polymer (F), said polymer (H) comprising at least one functional group; (C) at least one cross-linking agent; wherein the weight ratio of the polymer (F) to the polymer (H) is higher than 0.75.
Fluorinated polyurethane composition
FORGIONE GERARDO (author) / ROVINETTI SARA (author) / BELTRAMIN MARCO (author)
2016-06-28
Patent
Electronic Resource
English
IPC:
E04D
ROOF COVERINGS
,
Dacheindeckungen
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesÃĪttigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
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