Method for producing foamed molded product

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9884439
APP PUB NO 20150336307A1
SERIAL NO

14819100

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Importance

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Abstract

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A method for producing a foamed molded product includes:

    using a molding apparatus including a plasticizing cylinder having a high pressure kneading zone and a pressure reduction zone; and a screw;controlling a pressure of the pressure reduction zone to be a first pressure in a state that communication between the high pressure kneading zone and the pressure reduction zone is shut off, the first pressure being not less than an atmospheric pressure and not more than a maximum pressure of the high pressure kneading zone which is reached in a case that a molten resin is brought in contact and kneaded with a physical foaming agent;controlling back pressure of the screw to be a second pressure which is not less than the first pressure; andmeasuring a predetermined amount of the molten resin from which the gasified physical foaming agent has been separated.

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Patent Owner(s)

  • MAXELL, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ano, Tetsuya Takatsuki, JP 9 40
Goto, Hideto Muko, JP 23 94
Ota, Hironori Ibaraki, JP 15 80
Yamamoto, Satoshi Settsu, JP 491 4079
Yusa, Atsushi Nagaokakyo, JP 75 425

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