MULTILAYER ARTICLE WITH ADHESION-PROMOTING LAYER AND METHOD OF MAKING

摘要

Multilayer articles (including imaging elements) have improved adhesion between a polymeric support and film-forming polymer-containing layers disposed thereon. This improved adhesion is provided by including in the adhesion-promoting layer next to the support two or more polymers specific properties. At least one of the polymers adhers the layer to the support, and at least one other polymer is compatible or of the same class as the film-forming polymer in the upper layer. This adhesion-promoting layer can be provided as a very thin "carrier" layer during coating operations so that desired sensitometric effects and functional properties are obtained. Preferred imaging elements having such adhesion-promoting layers are photothermographic films.