US 5,607,777 A · Coating composition for a subbing layer on a polyester film for light sensitive material

Abstract

The present invention discloses a subbing coating composition for polyester films comprising: I 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 --SO.sub.3 X and/or --PO.sub.3 XY 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 --SO.sub.3 X and/or --PO.sub.3 XY 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.

Claims19

Dependent claims

A subbing coating consisting essentially of components I and III or components II and III, wherein 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 --SO.sub.3 X and/or --PO.sub.3 XY 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 --SO.sub.3 X and/or --PO.sub.3 XY 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,
wherein the subbing does not comprise addition polymerizable compounds.

2 more elements

An aziridine-free subbing coating, which subbing coating comprises components I and III or components II and III, 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 --SO.sub.3 X and/or --PO.sub.3 XY 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 --SO.sub.3 X and/or --PO.sub.3 XY 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,
wherein the subbing coating does not comprise addition polymerizable compounds.

1 more element

A subbing coating comprising a product of reacting, at a temperature in the range 100.degree. C. to 300.degree. 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 lII 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 --SO.sub.3 X and/or --PO.sub.3 XY 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 --SO.sub.3 X and/or --PO.sub.3 XY 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.

Dependencies are inferred from the claim text.

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

Life of this patent

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

Life of this patent

Abstract

Claims19