Coating composition for a subbing layer on a polyester film for light sensitive material

The present invention discloses a subbing coating composition for polyester films comprising: I a polymer A having attached to its backbone carboxyl groups and/or groups which form carboxyl groups upon hydrolysis and a polymer B having attached to its backbone -SO3X and/or -PO3XY groups, wherein X a...

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Bibliographische Detailangaben
Hauptverfasser: MOORE, CATHY R, DONALD, ROBIN M, KREJCI, JAMES J, HEBERGER, JOHN M
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The present invention discloses a subbing coating composition for polyester films comprising: I a polymer A having attached to its backbone carboxyl groups and/or groups which form carboxyl groups upon hydrolysis and a polymer B having attached to its backbone -SO3X and/or -PO3XY groups, wherein X and Y are identical or different and denote an alkali metal, ammonium or hydrogen or II a polymer A' having attached to its backbone carboxyl groups and/or groups which form carboxyl groups upon hydrolysis, and -SO3X and/or -PO3XY groups, wherein X and Y are identical or different and denote an alkali metal, ammonium or hydrogen and III an organic compound C having at least two free hydroxy groups, wherein the coating composition does not comprise addition polymerizable compounds.