Plastics film with an aluminium phosphate coating
AssigneeImperial Chemical Industries PLC
InventorsJames Derek Birchall, John Edward Cassidy
Life of this patent
Estimating the term…
Abstract
An organic, plastics film having a coating on at least one surface of said film of an aluminium phosphate, the aluminium phosphate being produced from halogen-containing complex aluminium phosphates.
Claims7
A glass like coated, organic, plastics film having a coating on at least one surface of said film of aluminium phosphate derived from a solution of a halogen-containing complex phosphate of aluminium containing at least one chemically bound molecule of a hydroxy compound R-OH wherein R is a hydrogen atom or an organic group.
A process for providing an organic, plastics film with a coating of aluminium phosphate comprising applying to at least one surface of the film a coating composition comprising a solution of a halogen-containing complex phosphate of aluminium containing at least one chemically bound molecule of a hydroxy compound R-OH wherein R is a hydrogen atom or an organic group and drying the coating by heating to a temperature of at least 80.degree. C to give a glass-like adherent coating.
Dependencies are inferred from the claim text.