Title:
SOUNDPROOF MATERIAL AND METHOD FOR PRODUCING SOUNDPROOF MATERIAL
Document Type and Number:
Japanese Patent JP2022044072
Kind Code:
A
Abstract:
To provide a soundproof material that can achieve improved soundproof performance and a method for producing the same.SOLUTION: A soundproof material 10 includes polyurethane foam 11 for sound absorption. The soundproof material 10 is produced by performing a sticking treatment to stick the tip of a needle or cutter to the middle point of the foamed and molded polyurethane foam at a plurality of sites.SELECTED DRAWING: Figure 13
Inventors:
NAKANE KAZUYASU
Application Number:
JP2020149511A
Publication Date:
March 17, 2022
Filing Date:
September 06, 2020
Export Citation:
Assignee:
INOUE MTP KK
International Classes:
B29C44/56; B29C39/20; B29C44/00; B29C44/06; C08J9/38; G10K11/16; G10K11/162; G10K11/168
Attorney, Agent or Firm:
Hiroshi Matsuura
Kanako Axis
Kanako Axis
Previous Patent: JPWO2022044071
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