Flame-blocking nonwoven fabric
US-2018187351-A1 · Jul 5, 2018 · US
Nonwoven fabric sheet
US11618240B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11618240-B2 |
| Application number | US-201916978943-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 13, 2019 |
| Priority date | Mar 30, 2018 |
| Publication date | Apr 4, 2023 |
| Grant date | Apr 4, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A nonwoven fabric sheet exhibiting high flame shielding performance, heat insulating property, and wear resistance is described, where the nonwoven fabric sheet is fabricated and includes at least one fire barrier layer formed of a web containing a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m·K or less and in which the fire barrier layer is coupled with a scrim layer containing a carbide-forming heat resistant fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more.
First claim
Opening claim text (preview).
The invention claimed is: 1. A nonwoven fabric sheet comprising at least one fire barrier layer formed of a web containing a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO 22007-3(2008) of 0.060 W/m·K or less, wherein the non-melting fiber A is a flame resistant fiber, wherein a single fiber of the non-melting fiber A has a thickness in a range of 0.1 to 10 dtex, wherein the fire barrier layer is coupled with a scrim layer that includes a woven fabric or a knitted fabric containing a carbide-forming heat resistant fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more, wherein the carbide-forming heat resistant fiber B which is contained in the scrim layer is a fiber formed of polyarylene sulfide, and wherein the nonwoven fabric sheet contains the carbide-forming heat resistant fiber B at 30% to 85% by mass. 2. The nonwoven fabric sheet according to claim 1 , wherein the nonwoven fabric sheet contains the non-melting fiber A at 15% to 70% by mass. 3. The nonwoven fabric sheet according to claim 1 , wherein the nonwoven fabric sheet contains a fiber C other than the non-melting fiber A and the carbide- forming heat resistant fiber B at 20% by mass or less.
Assignees
Inventors
Classifications
Flame resistant or retardant, fire resistant or retardant · CPC title
Conductive · CPC title
Aromatic polyamides · CPC title
Polyamide fibres · CPC title
- B32B5/022Primary
Non-woven fabric · CPC title
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- What does patent US11618240B2 cover?
- A nonwoven fabric sheet exhibiting high flame shielding performance, heat insulating property, and wear resistance is described, where the nonwoven fabric sheet is fabricated and includes at least one fire barrier layer formed of a web containing a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m·K…
- Who is the assignee on this patent?
- Toray Industries
- What technology area does this patent fall under?
- Primary CPC classification B32B5/022. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 04 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).