Glass fiber-reinforced resin molded article
US-11091596-B2 · Aug 17, 2021 · US
Glass fiber-reinforced resin molded product
US11827770B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11827770-B2 |
| Application number | US-202118016710-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 4, 2021 |
| Priority date | Oct 8, 2020 |
| Publication date | Nov 28, 2023 |
| Grant date | Nov 28, 2023 |
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Abstract
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Provided is a glass fiber-reinforced resin molded article having high dimension stability and low dielectric characteristics. In the glass fiber-reinforced resin molded article, the fiber diameter D of glass fiber included in the glass fiber-reinforced resin molded article is in the range of 5.0 to 15.0 μm, the dielectric constant Dk at a measurement frequency of 1 GHz of the glass fiber is in the range of 4.0 to 7.0, the linear expansion coefficient C of the glass fiber is in the range of 2.0 to 6.0 ppm/K, the number average fiber length L of the glass fiber is in the range of 150 to 400 μm, and the D, Dk, C, and L satisfy the following formula (1): 57.9≤ Dk×C 1/4 ×L 1/2 /D 1/4 ≤70.6 (1)
First claim
Opening claim text (preview).
The invention claimed is: 1. A glass fiber-reinforced resin molded article, wherein a fiber diameter D of glass fiber included in the glass fiber-reinforced resin molded article is in a range of 5.0 to 15.0 μm, a dielectric constant Dk at a measurement frequency of 1 GHz of the glass fiber included in the glass fiber-reinforced resin molded article is in a range of 5.1 to 7.0, a linear expansion coefficient C of the glass fiber included in the glass fiber-reinforced resin molded article is in a range of 2.0 to 6.0 ppm/K, a number average fiber length L of the glass fiber included in the glass fiber-reinforced resin molded article is in a range of 150 to 400 μm, and the D, Dk, C, and L satisfy a following formula (1): 58.2≤ Dk×C 1/4 ×L 1/2 /D 1/4 ≤61.7 (1) 2. The glass fiber-reinforced resin molded article according to claim 1 , wherein the glass fiber included in the glass fiber-reinforced resin molded article comprises a composition including SiO 2 in a range of 60.00 to 70.00% by mass, Al 2 O 3 in a range of 20.00 to 30.00% by mass, MgO in a range of 5.00 to 15.0% by mass, Fe 2 O 3 in a range of 0.15 to 1.50% by mass, and Li 2 O, Na 2 O, and K 2 O in a range of 0.02 to 0.20% by mass in total, with respect to a total amount of the glass fiber. 3. The glass fiber-reinforced resin molded article according to claim 1 , wherein a resin contained in the glass fiber-reinforced resin molded article is polybutylene terephthalate. 4. The glass fiber-reinforced resin molded article according to claim 2 , wherein a resin contained in the glass fiber-reinforced resin molded article is polybutylene terephthalate.
Assignees
Inventors
Classifications
- C08K7/14Primary
Glass · CPC title
Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title
of reinforcements or fillers (chemical aspects C08J, C08K) · CPC title
Fibre or filament compositions (manufacture of fibres or filaments C03B37/00) · CPC title
Oxides; Hydroxides {(graphene oxides C08K3/042)} · CPC title
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- What does patent US11827770B2 cover?
- Provided is a glass fiber-reinforced resin molded article having high dimension stability and low dielectric characteristics. In the glass fiber-reinforced resin molded article, the fiber diameter D of glass fiber included in the glass fiber-reinforced resin molded article is in the range of 5.0 to 15.0 μm, the dielectric constant Dk at a measurement frequency of 1 GHz of the glass fiber is in …
- Who is the assignee on this patent?
- Nitto Boseki Co Ltd, Nitto Bosekl Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08K7/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 28 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).