Coating process
AssigneeBluescope Steel Limited
InventorsShane A. MacLaughlin, Binbin Xi
Life of this patent
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Abstract
A process for coating a product by ion exchange including: a) providing a product that contains a surface segregating species (SSS) having a low surface energy component and an ionic component wherein the SSS has segregated to an outer surface of the product to form an activated surface; and b) treating the activated surface of the product with a liquid containing a surface modifying agent comprising one or more polyionic species, wherein the polyionic species is attracted to and deposits on the activated surface through a process of ion exchange.
Claims11
A coated product comprising:
- a metal substrate,
- a polymer component deposited on the metal substrate,
- a surface segregating species as an electroactive additive within the polymer component, wherein the surface segregating species comprises an ionic component and a low surface energy component, wherein at least a portion of the surface segregating species has segregated to an outer surface of the polymer component, and
- a coating layer on the outer surface of the polymer component,
- wherein the coating layer comprises a surface modifying agent comprising a polyionic species that is bound to the ionic component of the surface segregating species.
A coated product comprising:
- a steel substrate;
- a paint layer on the steel substrate, wherein the paint layer comprises a polymer component and a surface segregating species as an electroactive additive within the polymer component, wherein the surface segregating species comprises an ionic component and a low surface energy component, wherein at least a portion of the surface segregating species has segregated to an outer surface of the paint layer, and
- a coating layer deposited on the outer surface of the paint layer,
- wherein the coating layer comprises a surface modifying agent comprising a polyionic species that is bound to the ionic component of the surface segregating species.
Dependencies are inferred from the claim text.