| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for bonding adherends by which spray coating can be easily performed with a simple device, and the working efficiency can be improved, which method comprises coating the surfaces of adherends with a two-package curable solventless adhesive comprising a specified base and a curing agent, superposing them on each other, and bonding them together under pressure. SOLUTION: The base is a mixture of a urethane prepolymer derived from an organic polyisocyanate compound and a polyalkylene ether polyol having an oxyethylene chain content of 20-100 wt.% and a diluent comprising a compound represented by formula I and a compound represented by formula II. In the formulae, X1 is a group derived by removing the carboxy group or groups from an aliphatic, aromatic, or like mono- or poly-carboxylic acid; R is a 2-25C alkyl or the like; X2 is a group derived by removing the carboxy group from an aliphatic, aromatic, or like monocarboxylic acid; Z is a group derived by removing the hydroxy groups from a polyol; m is an integer of 1-6; and n is an integer of 2-8. The curing agent is a mixture comprising water, a water-soluble polyol, and, optionally, a catalyst.
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