Nitto-Denko Corporation

Daisuke Shimokawa

Yukio Arimitsu

Shigeki Kawabe

Masaaki Sato

Minoru Yagi

Tomoko Doi

Takamasa Hirayama

Mitsuru Nozue

Kota Nakao

Kazuki Soejima

Provided is a gas adsorption sheet for a secondary battery, which contains gas adsorbent particles excellent in gas adsorption property, and allows the gas adsorption performance of the gas adsorbent particles to be sufficiently exhibited. According to one embodiment of the present invention, there is provided a gas adsorption sheet for a secondary battery, including: a heat-resistant base material; and a gas adsorption layer arranged on at least one surface of the heat-resistant base material, wherein the gas adsorption layer contains: a binder resin; and gas adsorbent particles each of which is formed of an inorganic porous material having pores, and is capable of adsorbing a gas.

Gas adsorption sheet for secondary batteries

A pressure-sensitive adhesive tape for a battery outer packaging including: a base material; and a pressure-sensitive adhesive layer arranged on one surface of the base material, where a value calculated from an expression 'a loss modulus of elasticity (G&#x2033;) of the pressure-sensitive adhesive tape for a battery outer packaging at 70&#xb0; C.&#xd7;a thickness (mm) of the pressure-sensitive adhesive layer/a thickness (mm) of the pressure-sensitive adhesive tape for a battery outer packaging' is 8&#xd7;10Pa or more; a value calculated from an expression 'a storage modulus of elasticity (G') of the pressure-sensitive adhesive tape for a battery outer packaging at 23&#xb0; C. &#xd7;the thickness (mm) of the pressure-sensitive adhesive layer/the thickness (mm) of the pressure-sensitive adhesive tape for a battery outer packaging' is 3&#xd7;10Pa or less; and a pressure-sensitive adhesive strength of the pressure-sensitive adhesive tape for a battery outer packaging to a stainless-steel plate at 23&#xb0; C. is 2 N/10 mm or more.

Pressure-sensitive adhesive tape for battery outer packaging

The invention relates to a heat-peelable pressure-sensitive adhesive sheet for cutting a laminated ceramic sheet, which is used for temporary fixing at cutting of the laminated ceramic sheet, the heat-peelable pressure-sensitive adhesive sheet including a base material and, formed on at least one surface of the base material, a heat-expandable pressure-sensitive adhesive layer containing a pressure-sensitive adhesive and a foaming agent, in which the heat-expandable pressure-sensitive adhesive layer has a gel fraction of 50% by weight or more, and the heat-expandable pressure-sensitive adhesive layer has a glass transition temperature of &#x2212;40&#xb0; C. to 30&#xb0; C.

Heat-peelable pressure-sensitive adhesive sheet for cutting laminated ceramic sheet and method for cut-processing laminated ceramic sheet

A method of thermal adherend release, wherein a part of adherends adherent to a heat-peelable pressure-sensitive adhesive sheet having a heat-expandable layer containing a foaming agent are selectively released from the pressure-sensitive adhesive sheet by partly heating the heat-peelable pressure-sensitive adhesive sheet, wherein the method comprises previously heating a sticking site of an adherend to be released at a temperature at which the heat-expandable layer of the heat-peelable pressure-sensitive adhesive sheet does not expand and then heating the sticking site of the adherend in the heat-peelable pressure-sensitive adhesive sheet at a temperature at which the heat-expandable layer expands to thereby selectively releasing the adherend.

Method of thermal adherend release and apparatus for thermal adherend release

Disclosed is a heat-peelable pressure-sensitive adhesive sheet that can prevent the deformation of a pressure-sensitive adhesive layer caused by pressurization, further reduce chipping in grinding and cutting processes, be easily peeled off from a processed article after processing, and can be easily applied to an adhered at ordinary temperature. The heat-peelable pressure-sensitive adhesive sheet includes a substrate, and a heat-expandable pressure-sensitive adhesive layer arranged on or above at least one side of the substrate, the heat-expandable pressure-sensitive adhesive layer containing a foaming agent and having a shear modulus (23&#xb0; C.) in an unfoamed state of 7&#xd7;10Pa or more. The adhesive sheet further includes a pressure-sensitive adhesive layer being arranged on or above heat-expandable pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer has a shear modulus (23&#xb0; C.) of less than 7&#xd7;10Pa and a thickness of 0.01 to 10 &#x3bc;m.

Growing community of inventors

Ibaraki, Japan

Daisuke Shimokawa