.~ Including interfacial reaction product of adjacent layers
DEFINITION
Classification: 428/420
(under subclass 411.1) Product comprising three layers in which the inner layer is disclosed as the inter-reaction product of the other layers.
SEE OR SEARCH CLASS
148, Metal Treatment,
240+, for processes of reactive coating of a metal substrate wherein an external agent combines with a component in the metal substrate to form a coating thereon containing a component of the metal substrate.