Making the building a bridge Characteristic

摘要

PROBLEM TO BE SOLVED: To provide an adhesive material having heat resistance and excellent re-releasability.;SOLUTION: The adhesive material comprises a wetting agent and water in a polymer matrix which is formed by copolymerizing a crosslinkable monomer with a water-soluble polymerizable monomer. The wetting agent comprises containing ≥50 wt.% of a polymer of a polyhydric alcohol monomer, the polyhydric alcohol monomer which constitutes the polymer containing at least the polyhydric alcohol with the hydric value of ≥3, the polymer having an average molecular weight of 150-4,000, and satisfying the following condition; [(the numbers of an ether group existing in the polymer+the numbers of a hydroxyl group existing in the polymer)/the numbers of a carbon atom existing in the polymer]≥1/3. The crosslinkable monomer of 0.02-1.5 wt.% on the basis of a total of the polymer matrix is contained therein.;COPYRIGHT: (C)2003,JPO