| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive sheet in which adhesiveness, high-temperature cohesiveness, and warpage resistance are realized at high levels; and to provide a water-dispersed acrylic pressure-sensitive adhesive composition suitable for forming the sheet. <P>SOLUTION: The water-dispersed pressure-sensitive adhesive composition contains 0.5 to 15 parts by mass of a water-dispersed acrylic copolymer (polymer H) with a Tg of 30°C to 120°C in relation to 100 parts by mass of a water-dispersed acrylic copolymer (polymer L) with a Tg of -70°C to -50°C. The polymer L is obtained by polymerization of a monomer starting material comprising 60 mass% or more of an alkyl (meth)acrylate with a 8-12C alkyl group; and 0.5 to 10 mass% of a radical polymerizable monomer with a carboxy group. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
