| 摘要 |
A vehicle seat component (14, 14a, 14') and its method for making same with a seating portion (20) molded from either expanded polyethylene or expanded polypropylene to have a density in the range of 0.3 to 2.8 pounds per cubic foot with a softness to provide seating comfort. A seat support (22) of the seat component is molded from expanded polypropylene and has a density in the range of 5 to 10 pounds per cubic foot so as to provide structural support. The seating portion (14, 14a) can be molded from either expanded pellets (28) or extruded and expanded tubes (34) of either polyethylene or polypropylene, while the seat support (22) is molded from expanded polypropylene pellets (30). The seat component (14') may have a cover (36') molded to the seating portion (20), and both the moldings may be sequentially in the same mold (44).
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