Mitsui Chemicals, Inc.

Takahiro Maeda

Yoshiyuki Ogawa

Tetsuya Watanabe

Kentaro Suzuki

Hiroshi Maekawa

Mitsuru Sadamoto

Souta Itou

A laminate for a battery with a polypropylene adhesive layer and a metal substrate layer: (1) the adhesive includes 40-94 wt % of a propylene copolymer (A), 3-30 wt % of a butene-containing copolymer (B), 3-30 wt % of an ethylene-&#x3b1;-olefin copolymer (C) ((A), (B), and (C) is 100 wt %), (2) the copolymer (A) has a melting point of 130&#xb0; C. or more measured with a differential scanning calorimeter, and a total proportion of a structural unit derived from ethylene is 4-25 mol % relative to 100 mol % of a total structural units forming all the copolymers (A) contained in the adhesive, (3) the copolymer (B) includes less than 1 mol % of a structural unit derived from ethylene, and has a melting point of 100&#xb0; C. or less measured with a differential scanning calorimeter, and (4) the copolymer (C) includes 50-99 mol % of a structural unit derived from ethylene.

Laminate for battery

A method of producing a laminate comprising a heat treatment step under a temperature condition of 80-140&#xb0; C. for 5-120 minutes, wherein the laminate satisfies the following requirements: (1) an adhesive layer (I) with 97-70% by weight of a propylene copolymer (A) and 3-30% by weight of a copolymer (B) having a structural unit derived from butane (100% by weight); (2) the copolymer (A) has a melting point within a specific range and includes less than 1 mol % of structural unit from butane; (3) the copolymer (B) has a melting point within a specific range and includes 1 mol % or more of structural unit from butane; (4) the adhesive layer (I) has a polymer (C) with a structural unit from at least one graft monomer selected unsaturated carboxylic acids and derivatives thereof, and, (5) a substrate layer (II) includes a polyester resin.

Method of producing laminate

A gas generating device of present invention is generated a first gas at a first carbon electrode by applying a voltage between said first carbon electrode and a second electrode to electrolyzing an electrolytic solution. The first carbon electrode is an anode or a cathode. The first carbon electrode is provided with a plurality of fine gas flow channels which selectively pass said first gas generated on one surface of said first carbon electrode to the other surface without allowing said electrolytic solution to permeate therethrough.

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Dusseldorf, Germany

Takahiro Maeda