Sekisui Plastics Co., Ltd.

Sekisui Kaseihin Kogyo Kabushiki Kaisha

Nissin Food Products Co., Ltd.

Toru Yoshimi

Masahiro Tsubone

Yasuo Imai

Hiroshi Hasegawa

Masaru Chiba

Hirotomo Iwasaki

Kazumasa Morioka

Toshinobu Kogi

Yasuhiro Ono

Yoshinori Kajimoto

Akio Tsujita

Process and apparatus for manufacturing a foamed resin container with a

There is provided a process for manufacturing a heat-resistant molded foam product which comprises:

Process for manufacturing a heat-resistant molded foam product

A foamed laminate sheet suitable for thermoforming and a double-side vacuum forming process using the same are disclosed, said foamed laminate sheet being composed of a foamed interlayer comprising a polyolefin resin as a main resinous component and from 0.5 to 35 parts by weight of an inorganic filler per 100 parts by weight of the polyolefin resin, said foamed interlayer having a density of from 0.18 to 0.98 g/cm.sup.3, and a polyolefin film laminated on both sides of said foamed interlayer. The foamed laminate sheet exhibits excellent formability, and formings obtained therefrom have excellent heat resistance, oil resistance, heat insulating properties, and strength, with outstanding use in a microwave oven or as a retort food container.

Polyolefin resin foamed laminate sheet and double-side vacuum forming of

A method and apparatus for manufacturing a cup formed of a thermoplastic resin foamed sheet material and having a lip, the side wall and bottom of the cup being integrally formed, the lip extending outwardly from the mouth portion of the cup and being bent at its end radially inwardly towards the side wall. The method includes forming a rim extending outward from the mouth portion of the cup and having a downwardly extending end, providing a bending furrow on the outer periphery of the side wall at a level below the rim, and bending the rim, as it is heated, at the bending furrow. The apparatus comprises a mandrel block adapted to hold cups and rotatable and axially slidable, a hot blade or cutting blade movable toward the mandrel block and adapted to form a bending furrow for bending the rim, and a lip forming tool having a lip forming groove adapted to be heated.

Method and apparatus for manufacturing cups having a lip

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Ibaraki, Japan

Toru Yoshimi