COMPOSITION FOR FORMING RELEASING LAYER

摘要

The present invention provides a composition for forming a releasing layer that enables easy separation of a layer or layers from the releasing layer, said layer or layers being formed on top of the releasing layer, while preventing separation at the interface with a glass substrate by maintaining good adhesion to the glass substrate on which the releasing layer is provided. The present invention provides a composition for forming a releasing layer, which contains an organic solvent and a polyamic acid containing 50% by mole or more of a monomer unit represented by formula (1) and having a weight average molecular weight of 10,000 or more. In formula (1), X1 represents a tetravalent organic group; and Y1 represents a divalent group represented by formula (P).