Foam-molded article and manufacturing method thereof

Details Foam-molded article and manufacturing method thereof Foam-molded article and manufacturing method thereof

2007-01-30

2007-01-30

Kuhns, Allan R. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

C264S050000, C264S053000, C264S514000, C264S515000

Reexamination Certificate

active

10782941

ABSTRACT:
Provided is a method for manufacturing a foam-molded article by molding between molds a parison with a foam layer formed by extruding an expandable molten resin composition, obtained by melt-kneading a polyethylene resin and a physical foaming agent, to an area of low pressure from a die, wherein the polyethylene resin is selected from those having a melt flow rate of 0.1 to 25 g/10 minutes and a melt tension of not less than 1.5 cN, and wherein the apparent density of the foam layer in the foam-molded article is about 0.04 to 0.3 g/cm3.

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patent: WO 98/53986 (1998-12-01), None
patent: WO 99/32544 (1999-07-01), None

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