Method for Manufacturing Shaped Product with Maintained Isotrophy
US-2015064408-A1 · Mar 5, 2015 · US
Random mat, shaped product of fiber reinforced composite material, and carbon fiber mat
US9909253B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9909253-B2 |
| Application number | US-201414439581-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2014 |
| Priority date | Jun 26, 2013 |
| Publication date | Mar 6, 2018 |
| Grant date | Mar 6, 2018 |
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Abstract
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There is provided a random mat including carbon fibers having an average fiber length of from 3 mm to 100 mm and a thermoplastic resin, wherein a fiber areal weight of the carbon fibers is from 25 to 10,000 g/m 2 , a proportion of carbon fiber bundles (A) constituted by single carbon filaments of a critical single fiber number or more defined by the formula (1) to the total amount of fibers in the random mat is from 40 to 99 Vol %, and an average number (N) of fibers in the carbon fiber bundles (A) satisfies the formula (2): critical single fiber number=600/ D (1) 2.0×10 5 /D 2 ≦N <8.0×10 5 /D 2 (2) wherein D is an average fiber diameter (μm) of carbon fibers.
First claim
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The invention claimed is: 1. A random mat comprising: carbon fibers having an average fiber length of from 3 mm to 100 mm; and a thermoplastic resin, wherein a fiber areal weight of the carbon fibers is from 25 to 10,000 g/m 2 , a proportion of carbon fiber bundles (A) that are constituted by a number of single carbon filaments of 600 (μm)/D or more to a total amount of fibers in the random mat is from 40 Vol % to 99 Vol %, and an average number (N) of fibers…
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Textiles & Paper · mapped topic
Textiles & Paper · mapped topic
Chemistry & Metallurgy · mapped topic
- C08J5/043Primary
Chemistry & Metallurgy · mapped topic
- D06M15/513Primary
Textiles & Paper · mapped topic
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- What does patent US9909253B2 cover?
- There is provided a random mat including carbon fibers having an average fiber length of from 3 mm to 100 mm and a thermoplastic resin, wherein a fiber areal weight of the carbon fibers is from 25 to 10,000 g/m 2 , a proportion of carbon fiber bundles (A) constituted by single carbon filaments of a critical single fiber number or more defined by the formula (1) to the total amount of fibers in …
- Who is the assignee on this patent?
- Teijin Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08J5/043. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 06 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).