Pressure-sensitive adhesive composition for patterned pressure-sensitive adhesive tape, patterned pressure-sensitive adhesive tape, and production method thereof

A patterned pressure-sensitive adhesive tape comprising:

• a support;
• and
• a pressure-sensitive adhesive layer,
• wherein:
• the pressure-sensitive adhesive layer is formed by a pressure-sensitive adhesive composition for a patterned pressure-sensitive adhesive tape, wherein an elongational viscosity of the pressure-sensitive adhesive composition for the patterned pressure-sensitive adhesive tape measured at 30° C. is 1,000 mPa·s or greater and 650,000 mPa·s or less,
• the pressure-sensitive adhesive layer has two or more pressure-sensitive adhesive portions and a non-pressure-sensitive adhesive portion region having no pressure-sensitive adhesive portions between the two or more pressure-sensitive adhesive portions,
• the non-pressure-sensitive adhesive portion region is patterned to lead to an outer periphery of a sheet plane,
• the outer periphery comprises an edge positioned in an width direction of the patterned pressure-sensitive adhesive tape, and an edge positioned in a flow direction of the patterned pressure-sensitive adhesive tape, and
• a thickness of the pressure-sensitive adhesive portions is in a range of from 1 μm to 20 μm.