Foamed resin molded article
AssigneeSekisui Chemical Co., Ltd.
InventorsDaiki Hisashuku, Tamotsu Matsunaga, Hiroaki Hanaki
Life of this patent
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Abstract
A foamed resin molded article (1) including: a foamed resin layer (30) comprising a first resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit and an aromatic vinyl monomer unit, and a blowing agent; and a non-foamed resin layer (50) covering the foamed resin layer (30), wherein: the non-foamed resin layer (50) comprises a second resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit, and an aromatic vinyl monomer unit; and the amount of the rubber component in the non-foamed resin layer (50), determined by pyrolysis-gas chromatography/mass spectrometry (PGC/MS), is 1% by mass or more and 30% by mass or less, based on the total mass of the second resin.
Claims3
A foamed resin molded article comprising:
- a foamed resin layer comprising a first resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit and an aromatic vinyl monomer unit, and a blowing agent, and
- a non-foamed resin layer covering the foamed resin layer,
- wherein:
- the non-foamed resin layer comprises a second resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit, and an aromatic vinyl monomer unit,
- an amount of the rubber component in the non-foamed resin layer, determined by pyrolysis-gas chromatography/mass spectrometry (PGC/MS), is 5% by mass or more and 15% by mass or less, based on a total mass of the second resin;
- each of the first resin and the second resin is an acrylonitrile-butadiene-styrene copolymer (ABS resin);
- the foamed resin molded article is a joint having a bent flow path inside;
- and
- the foamed resin molded article does not break in an expansion/contraction fatigue resistance test under the conditions that a stress F of 700 kg weight is applied once per second for at least 1,000 times.
Dependencies are inferred from the claim text.