To provide a laminate foam sheet excellent in quietness, thermal moldability, and mechanical strength and a molded article thereof.SOLUTION: A laminate foam sheet includes a foam layer (A) containing a polypropylene resin and a first non-foam layer (B) containing a polypropylene resin on at least one surface of the foam layer. The foam layer (A) has an isolated cell rate of 70% or more, a density of 50-1,000 kg/m3, a rate of air bubbles (I) of 40% or more calculated by a specific method and contains substantially no inorganic filler. The first non-foam layer (B) contains an inorganic filler of 5-40 mass% to the total mass of the first non-foam layer (B).SELECTED DRAWING: None
【課題】静音性、熱成形性、及び機械的強度に優れる積層発泡シート、及びその成形体を提供すること。【解決手段】ポリプロピレン系樹脂を含む発泡層(A)と、前記発泡層の少なくとも一方の面に位置するポリプロピレン系樹脂を含む第一の非発泡層(B)とを有し、前記発泡層(A)は、独立気泡率が70%以上であり、実質的に無機フィラーを含有せず、密度が50〜1000kg/m3であり、特定の方法で算出される気泡(I)の割合が40%以上であり、前記第一の非発泡層(B)は、前記第一の非発泡層(B)の総質量に対し、無機フィラーを5〜40質量%含む、積層発泡シート。【選択図】なし
LAMINATE FOAM SHEET, AND MOLDED ARTICLE THEREOF
積層発泡シート、及びその成形体
2021-09-13
Patent
Electronic Resource
Japanese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B62D MOTOR VEHICLES , Motorfahrzeuge / C08J Verarbeitung , WORKING-UP |
METHOD OF MANUFACTURING FOAM MOLDED ARTICLE, AND FOAM MOLDED ARTICLE
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