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US 12,668,016 B2Granted
Expansion molded body and method for producing molded body
AssigneeKyoraku Co., Ltd.
InventorsKengo Shimada, Yoshihiro Yamasaki, Yoshinori Ono, Tadatoshi Tanji
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Abstract
A foam the molded body with excellent flame retardancy. A foam molded body formed of a foam-molded resin composition containing a base resin and a flame retardant. An expansion ratio of the foam molded body is 1.1 to 9.0 times, the base resin contains polyolefin, and a blending amount of the flame retardant in the resin composition is 0.1 to 10% by mass.
Claims2
A foam blow molded body formed of a foam-molded resin composition containing a base resin, a flame retardant, and carbon black,
- wherein
- the foam blow molded body is hollow,
- the foam-molded resin composition is foamed by using a physical foaming agent and a chemical foaming agent,
- the physical foaming agent is carbon dioxide gas,
- an expansion ratio of the foam blow molded body is 4.0 times,
- the base resin contains 90 wt. % polypropylene and 10 wt. % polyethylene,
- a blending amount of the flame retardant in the resin composition is 1.0% by mass,
- the flame retardant is a hindered amine-based flame retardant, and
- a wall thickness of the foam blow molded body is 2.0 mm.
6 more elements
Dependencies are inferred from the claim text.