TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Group: The ethylenically unsaturated bond is chosen from vinyl group optionally having acryl group optionally having 1-10C hydrocarbon substituent, and 1-10C hydrocarbon substituent.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The polymer of adhesive layer (C) contains compound (a) having alkoxysilyl group and ethylenically unsaturated bond, and compound (b) having tertiary amino group and ethylenically unsaturated bond. The adhesive layer (C) further contains a copolymer containing compound (c) having tertiary amino group and ethylenically unsaturated bond, and compound (d) having alkoxysilyl group and ethylenically unsaturated bond, and a polymer having an oxazoline group. The polymer of adhesive layer (C) further has secondary amino group. The polymer having primary and secondary amino group is polyethyleneimine or polyallylamine. The polymer having oxazoline group contains compound having oxazoline group and ethylenically unsaturated bond. The content of oxazoline group is 0.1-10 mmol with respect to 1 g of the polymer. The resin layer (B) is an electrodischarge-treated layer containing resin having carboxyl group, phenolic hydroxyl group, ester bond, imide bond, or carbonic acid bond. At least one layer of the resin layer (B) contains polyester, polyunsaturated carboxylic ester, aromatic polyimide, or aromatic polycarbonate. The polyvinyl acetal layer (A) is a polyvinyl butyral layer containing plasticizer. Preferred Process: The method further involves coating a coating liquid containing compound (a), compound (b) and polymerization initiator on surface of polyvinyl acetal layer (A) or resin layer (B), and forming adhesive layer (C) after drying the coating liquid, or during drying by polymerizing the compound (b) or compound (a) or drying by copolymerizing the compound (a), and compound (b) or adding polymer containing compound (a) and compound (b) on a laminate of polyvinyl acetal layer (A) and resin layer (B), or adding copolymer containing compound (c) and compound (d) on laminate of polyvinyl acetal layer (A) and resin layer (B). The method alternately involves coating a coating liquid containing polymer having primary amino group and/or secondary amino group to surface of polyvinyl acetal layer (A) or resin layer (B) and drying, to form adhesive layer (C), adding polymer having primary amino group and/or secondary amino group on laminate of polyvinyl acetal layer (A) and resin layer (B), coating a coating liquid containing polymer having oxazoline group to the surface of polyvinyl acetal layer (A) or resin layer (B) and drying to form adhesive layer (C), or adding polymer having oxazoline group on laminate of polyvinyl acetal layer (A) and resin layer (B).