Three dimensional printer for fiber reinforced composite filament fabrication
US-2015375457-A1 · Dec 31, 2015 · US
Sheet winding molding method
US2020198221A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020198221-A1 |
| Application number | US-201816608546-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 12, 2018 |
| Priority date | Apr 27, 2017 |
| Publication date | Jun 25, 2020 |
| Grant date | — |
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- Title
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Abstract
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Provided is a sheet winding molding method including winding a thermosetting prepreg around a substrate while heating the thermosetting prepreg, wherein the time taken to form a next layer of the thermosetting prepreg on a layer of the wound thermosetting prepreg is shorter than the gel time of the prepreg at the temperature of the wound thermosetting prepreg. The sheet winding molding method is advantageous not only in that the method has excellent productivity, but also in that a molded article having excellent physical properties, such as excellent interlaminar shear strength, can be obtained by the method.
First claim
Opening claim text (preview).
1 . A sheet winding molding method comprising winding a thermosetting prepreg around a substrate while heating the thermosetting prepreg, wherein the time taken to form a next layer of the thermosetting prepreg on a layer of the wound thermosetting prepreg is shorter than the gel time of the prepreg at the temperature of the wound thermosetting prepreg. 2 . The sheet winding molding method according to claim 1 , wherein the temperature of the wound thermosetting prepreg is in the range of 80 to 160° C. 3 . The sheet winding molding method according to claim 1 , wherein the thermosetting prepreg contains a radically polymerizable resin. 4 . The sheet winding molding method according to claim 1 , wherein the gel time of the prepreg at 150° C. is in the range of 10 to 90 seconds.
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Classifications
using carbon fibres · CPC title
on a rotating mould, former or core · CPC title
- B29C70/16Primary
using fibres of substantial or continuous length {(non-woven fabrics per se D04H3/00)} · CPC title
Reinforcing macromolecular compounds with loose or coherent fibrous material · CPC title
Homopolymers or copolymers of methacrylic acid esters · CPC title
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- What does patent US2020198221A1 cover?
- Provided is a sheet winding molding method including winding a thermosetting prepreg around a substrate while heating the thermosetting prepreg, wherein the time taken to form a next layer of the thermosetting prepreg on a layer of the wound thermosetting prepreg is shorter than the gel time of the prepreg at the temperature of the wound thermosetting prepreg. The sheet winding molding method i…
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification B29C70/16. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jun 25 2020 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).