The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2020
Filed:
May. 30, 2017
Nagoya Oilchemical Co., Ltd., Aichi, JP;
Masanori Ogawa, Aichi, JP;
Makoto Fujii, Aichi, JP;
NAGOYA OILCHEMICAL CO., LTD., Aichi, JP;
Abstract
Provided are a sound-absorbing membrane, a sound-absorbing material, and methods of manufacture therefor that can provide suitable sound absorbing performance, suppressed deterioration in appearance quality, and easy production. A sound-absorbing membraneincludes: a base sheetmade of a nonwoven fabric having a airflow resistance of 0.01 to 0.1 kPa·s/m; and a resin filmcovering one surface of the base sheet, the resin filmmade of a thermosetting resin in a semi-cured state. Fillersmade of powder having an average particle diameter of 1 to 100 μm are dispersed in the resin film. The sound-absorbing membranehas a whole airflow resistance of 0.2 to 5.0 kPa·s/m. A sound-absorbing materialincludes a sound absorbing base sheetmade of a porous material, and the sound-absorbing membranelaminated on one surface or both surfaces of the sound absorbing base sheetsuch that the resin filmfaces the sound absorbing base sheet, the sound-absorbing materialhas a predetermined shape.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile