Nitto-Denko Corporation

Yoshimasa Nishida

Takafumi Suzuki

Yoshikazu Soeda

Kenta Jozuka

Hiromitsu Morishita

Masayoshi Natsume

Shuuji Sugimoto

Naoki Nakayama

Yoshikazu Tsuzuki

This invention provides a PSA sheet that allows prevention or reduction of damage such as fracture with efficient stretch removability. A stretchable PSA sheet is provided, comprising a PSA layer and a film-like substrate supporting the PSA layer. The PSA sheet has a long section. The long section has a tapered segment that extends, tapering to a first end of the length direction and the film-like substrate has a minimum cross-sectional area larger than 0.30 mmin the tapered segment.

Stretchable pressure-sensitive adhesive sheet

A method for producing a patterned pressure-sensitive adhesive body includes a pattern forming step of cutting a pressure-sensitive adhesive layer in a pressure-sensitive adhesive film including a first release film and the pressure-sensitive adhesive layer laminated on one surface of the first release film so as to form a first slit in a pattern shape and an outer frame forming step of cutting the first release film and the pressure-sensitive adhesive layer so as to form a second slit in an outer frame shape surrounding the pattern shape. The second slit has a discontinuous portion in a cutting direction.

Patterned pressure-sensitive adhesive body and producing method thereof

Growing community of inventors

Ibaraki, Japan

Yoshimasa Nishida