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US-2024008228-A1 · Jan 4, 2024 · US
Graphite laminated body
US2016279902A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016279902-A1 |
| Application number | US-201415032347-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 27, 2014 |
| Priority date | Nov 1, 2013 |
| Publication date | Sep 29, 2016 |
| Grant date | — |
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Abstract
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Provided is a graphite laminated body having excellent properties such as excellent mechanical properties, excellent heat resistance, and excellent thermal conductivity. In particular, provided is a graphite laminated body comprising a graphite film, a non-thermoplastic polyimide film, and an adhesive layer for bonding the graphite film to the non-thermoplastic polyimide film, the adhesive layer being made of a thermoplastic polyimide or a fluororesin.
First claim
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1 . A graphite laminated body comprising a graphite film, a non-thermoplastic polyimide film, and an adhesive layer for bonding the graphite film to the non-thermoplastic polyimide film, the adhesive layer being made of a thermoplastic polyimide or a fluororesin. 2 . The graphite laminated body according to claim 1 , wherein the adhesive layer is made of a fluororesin and has a contact angle with water of 90 to 120 degrees. 3 . The graphite laminated body according to claim 1 , wherein the adhesive layer is made of a fluororesin and has a melt flow rate of 40 g/10 min or less. 4 . The graphite laminated body according to claim 1 , wherein the graphite film is a film produced using a polymer film as a raw material. 5 . The graphite laminated body according to claim 4 , wherein the polymer film is a polyimide film. 6 . The graphite laminated body according to claim 1 , wherein the non-thermoplastic polyimide film has a thermal expansion coefficient of 30 ppm/° C. or less. 7 . The graphite laminated body according to claim 1 , wherein the graphite film has a thermal conductivity of 200 W/m·K or more in the surface direction, and a thermal conductivity of 0.1 W/m·K or more in the thickness direction, and a ratio of the thermal conductivity in the surface direction to that in the thickness direction of 40 or more. 8 . The laminated body according to claim 1 , which has a permittivity of 5 or less. 9 . The graphite laminated body according to claim 1 , wherein the non-thermoplastic polyimide film has a tensile elastic modulus of 3.0 GPa or more. 10 . The graphite laminated body according to claim 1 , wherein the thermoplastic polyimide comprises one or more types of thermoplastic polyimides selected from the group consisting of thermoplastic polyamide-imides, thermoplastic polyetherimides, silicone-modified polyimides, sulfonated polyimides, and thermoplastic polyesterimides. 11 . The graphite laminated body according to claim 1 , wherein the fluororesin contains tetrafluoroethylene-hexafluoropolypropylene copolymer. 12 . The graphite laminated body according to claim 1 , which is used for a FPC board.
Assignees
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Classifications
using fillers, pigments, thixotroping agents · CPC title
Polymeric coating · CPC title
comprising polyimides · CPC title
Thermoplastic polymer, e.g. auto-adhesive layer; Shaping of thermoplastic polymer · CPC title
on synthetic resin layer or on natural or synthetic rubber layer · CPC title
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Frequently asked questions
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- What does patent US2016279902A1 cover?
- Provided is a graphite laminated body having excellent properties such as excellent mechanical properties, excellent heat resistance, and excellent thermal conductivity. In particular, provided is a graphite laminated body comprising a graphite film, a non-thermoplastic polyimide film, and an adhesive layer for bonding the graphite film to the non-thermoplastic polyimide film, the adhesive laye…
- Who is the assignee on this patent?
- Du Pont-Toray Co Ltd, Panasonic Corp
- What technology area does this patent fall under?
- Primary CPC classification B32B9/007. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Sep 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).