Mitsui Petrochemical Industries, Ltd.

Nippon Paper Industries Co., Ltd.

Jujo Paper Co., Ltd.

Eiichi Kato

Eiji Takahashi

Hiroshi Ueda

Hiroji Niimi

Masayuki Sakai

Hiroshi Kondo

Takashi Hiraoka

Masaharu Inaba

Masaki Kohsaka

Masataka Okamoto

A packaging laminate material comprises a paper substrate and a polyester resin layer provided on at least the innermost surface side of the substrate, wherein the polyester resin comprises dicarboxylic acid units comprising terephthalic acid and adipic acid and dihydroxy compound units comprising ethylene glycol and a second different dihydroxy compound. The polyester may also contain polyfunctional units derived from a polycarboxylic acid having a valence of 3 or more and/or derived from a polyglycol having a valence of 3 or more. The packaging laminate has a high heat-sealing strength, a small decrease in the heat-sealing strength even after the laminate is subjected to a hot water treatment or a hot hydrogen peroxide treatment, and is excellent in scent (odor) retention properties.

Packaging laminate material

Electroconductive base sheet for electrostatic according which comprises an electroconductive layer containing both a metal oxide semiconductor of this invention and at least one substance selected from the group consisting of a reducing saccharide, a derivative thereof, ascorbic acid, an optical isomer of ascorbic acid and a reducing ascorbic acid derivative of this invention. The electroconductive base sheet provides a superior electroconductivity.

Electroconductive base sheet for electrostatic recording

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Tokyo, Japan

Eiichi Kato