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:
Apr. 28, 2020
Filed:
May. 18, 2016
Goertek Inc., Shandong, CN;
Xiaodong Cao, Shandong, CN;
Goertek, Inc., Shandong, CN;
Abstract
The invention discloses a sound-absorbing material particle and a preparation method thereof. The preparation method comprises the following steps: step, mixing a sound-absorbing raw material with a templating agent and water to prepare a sound-absorbing slurry, filling a reaction kettle with a porous ceramic substrate and the sound-absorbing slurry that are mixed together; step, performing hydrothermal crystallization in the reaction kettle to ensure that the sound-absorbing raw material is crystallized on the porous ceramic substrate and constitutes the sound-absorbing material particle together with the porous ceramic substrate; step, performing solid-liquid separation on the materials in the reaction kettle; and step, drying and roasting the sound-absorbing material particle.