Molded foam
AssigneeKyoraku Co., Ltd.
InventorsMasaaki Onodera, Takeru Sano
Life of this patent
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Abstract
A molded foam that can be easily taken out of split mold blocks is provided. According to an aspect of the present disclosure, a molded foam is obtained by clamping, with split mold blocks, foamed resin obtained by melting and kneading a polyethylene-based resin, wherein the molded foam has a MFR (190° C., g/10 min) of less than 0.8, or the polyethylene-based resin has a MFR (190° C., g/10 min) of not more than 1.0.
Claims6
A blow molded foam molded from a foamed resin made of a polyethylene-based resin, the blow molded foam being an automobile duct configured to circulate cool or warm aft supplied from an air conditioning unit,
- wherein the blow molded foam has a MFR (190° C., g/10 min) of not less than 0.17 and not more than 0.40, and wherein a surface roughness Rmax of the blow molded foam is 200 μm or less,
- wherein the polyethylene-based resin has a MFR (190° C., g/10 min) of not less than 0.34 and not more than 1.0,
- wherein the polyethylene-based resin consists of:
- a high-density polyethylene-based resin of between 50 parts by mass and 90 parts by mass, wherein the high-density polyethylene-based resin has a density 0.949 g/cm3, a MFR of 0.3 g/10 min, and
- a low-density polyethylene-based resin of between 10 parts by mass and 50 parts by mass, wherein the low-density polyethylene-based resin has a density 0.919 g/cm3, a a MFR of 1.7 g/10 min.
Dependencies are inferred from the claim text.