Foam
US-10947163-B2 · Mar 16, 2021 · US
Soundproofing material
US11535004B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11535004-B2 |
| Application number | US-201716305173-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 24, 2017 |
| Priority date | Jun 2, 2016 |
| Publication date | Dec 27, 2022 |
| Grant date | Dec 27, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A soundproofing material including a porous body having a cell structure and including inorganic fibers other than asbestos, wherein an average cell diameter is more than 300 μm and 1000 μm or less, a bulk density is 0.007 to 0.024 g/cm3, and a flow resistivity is 170,000 to 2,000,000 Ns/m4.
First claim
Opening claim text (preview).
The invention claimed is: 1. A soundproofing material which is an inorganic fibrous porous body having a cell structure and comprising inorganic fibers other than asbestos, wherein an average cell diameter is 260 μm or more and 1000 μm or less, a bulk density is 0.0068 to 0.024 g/cm 3 , a flow resistivity is 170,000 to 3,000,000 Ns/m 4 , and the inorganic fibrous porous body comprises the inorganic fibers and one or more binders comprised of a coupling agent and optionally an inorganic binder, wherein the coupling agent is one or more of a silane coupling agent or a titanium coupling agent, wherein the inorganic fibers and one or more binders comprise a total amount of 95 wt % or more of the porous body, and wherein the coupling agent comprises 1 to 10 wt % of the porous body. 2. The soundproofing material according to claim 1 , wherein the inorganic fibers are glass fibers. 3. The soundproofing material according to claim 1 , further comprising a coating material coating at least a part of a surface of the porous body. 4. A soundproofing material which is an inorganic fibrous porous body, wherein the inorganic fibrous porous body comprises inorganic fibers other than asbestos, and has a compressive stress when compressed at normal temperature at a compression ratio of 80% of 0.1 MPa or less and a recovery ratio when compressed at normal temperature at a compression ratio of 80% of 50% or more, and the inorganic fibrous porous body comprises the inorganic fibers and one or more binders comprised of a coupling agent and optionally an inorganic binder, wherein the coupling agent is one or more of a silane coupling agent or a titanium coupling agent, wherein the inorganic fibers and one or more binders comprise a total amount of 98 wt % or more of the porous body, wherein the coupling agent comprises 1 to 10 wt % of the porous body, and wherein the one or more binders do not comprise clay minerals. 5. The soundproofing material according to claim 4 , wherein an apparent Young's modulus of the porous body when compressed at normal temperature at a compression ratio of 80% is 1 MPa or less. 6. The soundproofing material according to claim 4 , wherein a bulk density of the porous body at normal temperature is 0.005 to 0.1 g/cm 3 . 7. The soundproofing material according to claim 4 , wherein a product [MPa·g/cm 3 ] of a bulk density and a compressive stress of the porous body when compressed at normal temperature at a compression ratio of 40 to 80% is 0.3 or less. 8. A soundproofing material which is an inorganic fibrous porous body, wherein the inorganic fibrous porous body consists of inorganic fibers other than asbestos and a coupling agent, or consists of inorganic fibers other than asbestos, a surfactant and a coupling agent, wherein the coupling agent is one or more of a silane coupling agent or a titanium coupling agent, the inorganic fibers and the coupling agent comprise 98 wt % or more of the porous body, and the coupling agent comprises 1 to 10 wt % of the porous body, and all of recovery ratios of the porous body when compressed at normal temperature at each compression ratio in a range of compression ratio of 0 to 90% are 80% or more.
Assignees
Inventors
Classifications
Fibre or filament compositions (manufacture of fibres or filaments C03B37/00) · CPC title
characterised by the material treated · CPC title
synthetic resin or rubber layer being a foamed layer · CPC title
Coating on the layer surface · CPC title
Non-permeable · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11535004B2 cover?
- A soundproofing material including a porous body having a cell structure and including inorganic fibers other than asbestos, wherein an average cell diameter is more than 300 μm and 1000 μm or less, a bulk density is 0.007 to 0.024 g/cm3, and a flow resistivity is 170,000 to 2,000,000 Ns/m4.
- Who is the assignee on this patent?
- Nichias Corp
- What technology area does this patent fall under?
- Primary CPC classification B32B5/18. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 27 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).