Noise isolation sheet
AssigneeNishikawa Rubber Co., Ltd.
InventorsHiroaki Miyahara, Shinichiro Emori
Life of this patent
Estimating the term…
Abstract
There is provided a noise isolation sheet 100 which is installed in a car door comprising a door inner panel 11 and an interior door trim 12. The door trim 12 is provided inside the door inner panel 11. The noise isolation sheet 100 partially or wholly covers the door inner panel 11. The noise isolation sheet 100 is at least a double layer comprising an outer side sheet 101 and an inner side sheet 102. The outer side sheet 101 is a sheet made of a foam body having water absorption of less than 30%, and the inner side sheet 102 is a sheet made of a foam body having water absorption of 30% or more.
Claims2
A noise isolation sheet partially or wholly covering a panel provided inside a car door wherein,
- said noise isolation sheet is at least a double layer comprising an outer side sheet and an inner side sheet;
- said outer side sheet is a sheet made of a foam body having water absorption of less than 30%;
- and said inner side sheet is a sheet made of a foam body having water absorption of 30% or more.
A noise isolation sheet provided to a car door comprising a door inner panel and an interior door trim provided inside said door inner panel wherein,
- said noise isolation sheet partially or wholly covers said door inner panel;
- said noise isolation sheet is at least a double layer comprising an outer side sheet and an inner side sheet;
- said outer side sheet is a sheet made of a foam body having water absorption of less than 30%;
- and said inner side sheet is a sheet made of a foam body having water absorption of 30% or more.
Dependencies are inferred from the claim text.