Coextruded polymeric layer having first and second opposed major surfaces, the coextruded polymeric layer comprising foam and the coextruded polymeric layer comprising features extending from or into the first major surface by at least 100 micrometers, the first major surface comprising a first material having a first percent elongation at break, the second major surface comprising a second material having a second percent elongation at break, wherein the first percent elongation at break is greater than 100 percent of the second percent elongation at break. Coextruded polymeric layers described herein are useful, for example, in vibration damping applications (e.g., a vibration damping laminate comprising a kinetic spacer comprising the coextruded polymeric layers).
本发明提供了一种具有相对的第一主表面和第二主表面的共挤出聚合物层,该共挤出聚合物层包含泡沫,并且该共挤出聚合物层包括从第一主表面延伸或延伸至第一主表面中至少100微米的特征结构,该第一主表面包含具有第一断裂伸长率的第一材料,该第二主表面包含具有第二断裂伸长率的第二材料,其中第一断裂伸长率大于第二断裂伸长率的100%。本文所述的共挤出聚合物层可用于例如减振应用(例如,包括活动的间隔件的减振层合体,该活动的间隔件包括共挤出聚合物层)。
COEXTRUDED POLYMERIC LAYER
共挤出聚合物层
2021-10-29
Patent
Elektronische Ressource
Chinesisch
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 / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F16F SPRINGS , Federn |
Coextruded Sheets for Automotive Industry
British Library Conference Proceedings | 1989
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