To provide a noise insulation substrate of a desired bulk specific gravity from a raw material composed of at least two kinds of resin having a different bulk specific gravity.SOLUTION: A noise insulation substrate is a laminate of a raw material M1, M2 of at least two kinds of resins having different bulk specific gravity on a surface of a base fabric N1. The first raw material M1 is a resin with high solid -like material content and relatively large bulk specific gravity, the second type raw material M2 is a resin with high fiber-like material content and relatively small bulk specific gravity, and the first raw material M1 and the second type raw material M2 are pulverized to a size of a diameter of 5-30 mm and are blended at a rate of 1:9-5:5.SELECTED DRAWING: Figure 9
【課題】 嵩比重の異なる少なくとも2種の樹脂の原料で所要の嵩比重の防音基材に形成する。【解決手段】 基布N1の表面に嵩比重の異なる少なくとも2種の樹脂の原料M1、M2を積層した防音基材である。第1種原料M1は固形形状物を多く含んで嵩比重の比較的大の樹脂であり、 第2種原料M2は繊維形状物を多く含んで嵩比重の比較的小の樹脂であり、前記第1種原料M1及び第2種原料M2は直径5〜30mmの大きさに粉砕されかつ1:9〜5:5の割合で混合している。【選択図】図9
NOISE INSULATION SUBSTRATE, NOISE INSULATION SUBSTRATE MANUFACTURING APPARATUS, AND NOISE INSULATION SUBSTRATE MANUFACTURING METHOD
防音基材、防音基材製造装置及び防音基材製造方法
2021-02-15
Patent
Elektronische Ressource
Japanisch
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
NOISE INSULATION COMPRESSION APPARATUS RAILWAY VEHICLES
Europäisches Patentamt | 2024
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