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US 10,249,281 B2Granted
Felt, soundproofing material and method for producing soundproofing material
AssigneeNihon Tokushu Toryo Co., Ltd.
InventorsYuji Watanabe, Takanori Yumoto, Asako Shinoka
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Abstract
The invention provides a soundproofing material having excellent heat resistance, and, as a felt that is moldable into a soundproofing material at a low temperature, a felt which contains 10 mass % to 90 mass % of an unstretched thermoplastic resin fiber, and has a thickness of 0.05 mm to 100 mm, and an areal weight of 50 g/m2 to 2 kg/m2.
Claims16
A felt comprising:
- 10 mass % to 90 mass % of an unstretched thermoplastic resin fiber;
- and
- 10 mass % to 90 mass % of a stretched thermoplastic resin fiber, and
- having a thickness of 1 mm to 10 mm, and an areal weight of 50 g/m2 to 1600 g/m2.
1 more element
Dependencies are inferred from the claim text.