The invention relates to a screen (1) comprising: an external shell (2) based on a moulded thermoplastic material; an internal sub-layer (3) based on resiliently compressible moulded polyurethane foam, said sub-layer being associated with the rear side of said shell by over-moulding, the shell being based on a sheet of thermoformed thermoplastic material, said shell having a thickness between 0.2 and 1 mm, said shell optionally being: either a two-layered shell, said shell having an external layer (4) based on polyolefin, said external layer being provided at the side of said sub-layer, in order to allow adhesion between said shell and said sub-layer, with a rear layer (5) based on a thermoplastic material that adheres to said foam, or a single-layered shell, said shell being based on polyolefin, said rear side being subjected to a surface treatment that allows the adhesion to the sub-layer to be improved.
本发明涉及屏(1),包括:模塑热塑性材料基外部壳(2);可弹性压缩的模塑聚氨酯泡沫基内部底层(3),所述底层通过重叠模塑与所述壳的背面结合,所述壳基于热成型的热塑性材料片材,所述壳具有0.2‑1mm的厚度,所述壳选择性地:或者是双层壳,所述壳具有聚烯烃基外层(4),所述外层在所述底层侧上为了能够实现所述壳和所述底层之间的粘合而设置有粘合到所述泡沫上的热塑性材料基背层(5);或者是单层壳,所述壳基于聚烯烃,所述背面经过了能够改善其与所述底层的粘合的表面处理。
SOUND PROTECTION SCREEN FOR MOTOR VEHICLE ENGINE COMPARTMENT
用于机动车辆发动机舱的隔音屏
2021-10-29
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / 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 |
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