초록 ▼

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, whe

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.

대표청구항 ▼

Polyester base film having on at least one surface thereof a subbing coating, which subbing coating comprises a product of reacting, at a temperature in the range 100°C. to 300°C., components I and III or components II and III of a composition which does not comprise addition polymerizable compounds

Polyester base film having on at least one surface thereof a subbing coating, which subbing coating comprises a product of reacting, at a temperature in the range 100°C. to 300°C., components I and III or components II and III of a composition which does not comprise addition polymerizable compounds or an aziridine, wherein components I, II and III are as follows: 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, organic quaternary ammonium, or hydrogen; 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, organic quaternary ammonium or hydrogen; III. an organic compound C having at least two free hydroxy groups.