| 摘要 |
PROBLEM TO BE SOLVED: To obtain an adhesive which can exhibit excellent stability and adhesive performances even after long-term aging by compounding a polyisocyanate prepolymer having an acrylic unsaturation and free isocyanate functionality, a sulfonyl isocyanate, and catalyst having an ether group and a morpholine group. SOLUTION: The polyisocyanate prepolymer is obtained by reacting a polyisocyanate with a monomer having acrylic functionality and hydroxy or amine functionality. The sulfonyl isocyanate is contained to give storage stability to the adhesive and is desirably p-toluenesulfonyl isocyanate or benzylsulfonyl isocyanate. The catalyst which can be destrably used is exemplified by 2,2'- dimorpholinoethyl ether or di(2,6-dimethylmorpholinoethyl) ether.
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