Toppan Printing Co., Ltd.

Sony Corporation

Showa Denko K.k.

Showa Highpower Co., Ltd.

Hiroshi Umeyama

Masayuki Taniguchi

Katsuhiko Kimura

Tatuo Furuse

Toshikazu Katoh

Takeshi Yamasaki

Tomomi Yukumoto

Yoshihiro Moteki

Mitsuhiro Imaizumi

Takeo Kato

Takashi Fujimaki

Keiko Nakamura

Noriaki Harigai

Katsuyuki Ohno

Takeo Tomatsuri

Kiichiro Hirose

Toshiro Kinoshita

Toshiaki Hino

Teruaki Iyori

Naomi Kotani

Yuusuke Terauchi

Noaki Masuda

Mitch Kohno

Hiroharu Nagahama

Thoru Watanabe

A retort cup includes a tubular barrel portion formed of a barrel portion forming blank having a paper layer and thermoplastic resin layers; and a bottom portion which seals one of the openings of the barrel portion. The bottom portion has a downwardly bent peripheral edge portion. The barrel portion has an attached barrel overlap portion where both end edges of the blank are overlapped with each other and sealed, a lower fold-back portion which is formed at a lower end of the barrel portion by folding back the blank inwardly, and an upper fold-back portion which is formed by folding back the ends of the fold-back blank inwardly. The lower end of the barrel portion, the upper fold-back portion, and the peripheral edge portion of the bottom portion are sealed together. The peripheral edge portion is inserted into the lower fold-back portion.

Retort cup

An optical disc () includes a substrate (), which is formed from either a resin-impregnated paper produced by impregnating a paper with a resin, or a resin-coated paper produced by coating a surface of a paper with a resin, and a recording layer (), wherein the resin contains at least one resin selected from the group consisting of polycarbonates, bisphenol A epoxy resins, copolymers of methyl methacrylate and styrene, and copolymers of acrylonitrile and styrene. Furthermore, a method of manufacturing an optical disc () includes: providing a recording layer sheet by forming tracks on a recording base material; and bonding the recording layer sheet to a resin-impregnated paper or a resin-coated paper, thereby providing a recording layer () formed from the recording layer sheet on the substrate ().

Optical disc and method of manufacturing same

Stretched blow molding articles are prepared by using an aliphatic polyester composition having a melting point of at least 70.degree. C. including: 97.5 to 75 parts by weight of an aliphatic polyester copolymer (A) having a Mn of at least 50,000 which is obtained by reacting 100 parts by weight of a polyester diol (a) with 0.1 to 5 parts by weight of diisocyanate, wherein the polyester diol (a) is obtained by conducting a polycondensation of 1 mol of an acid component consisting of 70 to 90 mol % of succinic acid and 10 to 30 mol % of adipic acid, with 1 to 1.1 mol of glycol; and 2.5 to 25 parts by weight of potybutylene succinate (B) with a linear structure, (C) with a branched long chain structure, or (D) with a branched longer chain structure, which have an Mn of at least 50,000 and are composed from some of succinic acid, 1,4-butanediol, polyfunctional comonomer and di- or poly-functional coupling agents.

Stretched blow molding articles

The improved resin composition including a polyolefin, a transition metal containing oxidation catalyst and 0-500 ppm of a radical inhibitor can be used to fabricate a sheet and a container that have good oxygen barrier quality on its own without being combined with expensive other resins that have oxygen barrier quality.

Polyolefinic composition having oxygen barrier property, as well as

The saponified product of an ethylene-vinyl acetate copolymer is mixed with an oxidation catalyst to provide a resin composition having improved oxygen barrier quality. For better formability, the composition may be mixed or laminated with another thermoplastic resin such as a polyester.

Resin composition having oxygen barrier quality

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Tokyo, Japan

Hiroshi Umeyama