| abstract |
PROBLEM TO BE SOLVED: To provide a hot melt adhesive for rubber bonding capable of reliably bonding a rubber and an adherend (rubber, plastic, metal, etc.) with high adhesive strength without using an organic solvent. In an adhesive composed of a hot-melt adhesive resin, the ratio of functional groups (amino group, carboxyl group, double bond group, epoxy group, etc.) per kg of the adhesive is 10 mmol or more. Such an adhesive may be composed of at least one hot-melt adhesive resin selected from hot-melt adhesive polyamide-based resins and hot-melt adhesive polyester-based resins. In order to adjust the functional group concentration, Furthermore, a compound having a functional group (a compound having an epoxy group, a compound having a carbon-carbon double bond, or the like) may be included. [Selection figure] None |