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Thermocompression-bonding filament nonwoven fabric having excellent molding properties
US9982375B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9982375-B2 |
| Application number | US-201314439753-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 31, 2013 |
| Priority date | Nov 2, 2012 |
| Publication date | May 29, 2018 |
| Grant date | May 29, 2018 |
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- Title
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Abstract
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Provided is a thermocompression-bonding filament nonwoven fabric, which is inexpensive, has excellent molding properties and design properties, and is suitable as surface materials for automotive acoustic absorbing materials. The thermocompression-bonding filament nonwoven fabric comprising a polyester-based resin having a melting point of 250° C. or more, wherein the filament nonwoven fabric has a weight of 20 to 80 g/m 2 , a sum of 5% tensile loads in a MD and CD per weight of 1.0 to 1.9 (N/5 cm)/(g/m 2 ), and a 180° C. dry heat shrinkage of 3.5% or less in both the MD and CD, and is not mechanically interlaced.
First claim
Opening claim text (preview).
The invention claimed is: 1. A thermocompression-bonding filament nonwoven fabric comprising a polyester-based resin having a melting point of 250° C. or more, wherein the filament nonwoven fabric has a weight of 20 to 80 g/m 2 , a sum of 5% tensile loads in MD and CD per weight of 1.0 to 1.9 (N/5 cm)/(g/m 2 ), and a 180° C. dry heat shrinkage of 3.5% or less in both the MD and CD, and is not mechanically interlaced. 2. The thermocompression-bonding filament nonwoven fabric according to claim 1 , wherein the polyester-based resin comprises a polyethylene terephthalate and from more than 0 wt % to 2.0 wt % of a styrene-methyl methacrylate-maleic anhydride copolymer resin or styrene-maleic acid copolymer resin. 3. The thermocompression-bonding filament nonwoven fabric according to claim 1 , having an apparent density of from 0.12 to 0.20 g/cm 3 . 4. The thermocompression-bonding filament nonwoven fabric according to claim 2 , having an apparent density of from 0.12 to 0.20 g/cm 3 .
Assignees
Inventors
Classifications
polymers of unsaturated carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate · CPC title
polyesters, e.g. polyethylene terephthalate [PET] · CPC title
with bonds between thermoplastic yarns or filaments produced by welding · CPC title
of polyesters · CPC title
- D04H3/011Primary
Polyesters · CPC title
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- What does patent US9982375B2 cover?
- Provided is a thermocompression-bonding filament nonwoven fabric, which is inexpensive, has excellent molding properties and design properties, and is suitable as surface materials for automotive acoustic absorbing materials. The thermocompression-bonding filament nonwoven fabric comprising a polyester-based resin having a melting point of 250° C. or more, wherein the filament nonwoven fabric h…
- Who is the assignee on this patent?
- Toyo Boseki
- What technology area does this patent fall under?
- Primary CPC classification D04H3/011. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue May 29 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).