Epoxy resin formulations and processes for producing aerospace-grade composites via low temperature, isothermal infusion
US-2024376278-A1 · Nov 14, 2024 · US
Improvements to matrix additives
US9868833B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9868833-B2 |
| Application number | US-201415100303-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 24, 2014 |
| Priority date | Dec 24, 2013 |
| Publication date | Jan 16, 2018 |
| Grant date | Jan 16, 2018 |
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- Title
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- Abstract
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Abstract
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This invention relates to an additive for a thermoset resin matrix having a core and a reactive cross-linked thermoset coating. The reactive cross-linked thermoset coating is the reaction product of a thermoset resin and a curative in a dispersant.
First claim
Opening claim text (preview).
The invention claimed is: 1. An additive for a thermoset resin matrix, said additive having a core and a cross-linked thermoset coating, wherein the cross-linked thermoset coating is the reaction product of an epoxy thermoset resin and an amine curative which precipitate out of solution from a dispersant onto the surface of the core and wherein said cross-linked thermoset coating comprises reactive amine groups derived from the amine curative, said reactive groups being disposed on the surface of said cross-linked thermoset cross-linked thermosetting coating, said core comprising a veil, and wherein the dispersant is bound to surface of the crosslinked thermoset coating at a concentration of no greater than 0.001 weight percent based on the weight of the additive. 2. The additive according to claim 1 wherein the core is a thermoplastic core. 3. The additive according to claim 2 wherein said thermoplastic comprises a polyamide. 4. The additive according to claim 1 wherein the thermoset resin matrix comprises an epoxy resin or a bismaleimide resin.
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Classifications
Characterised by the use of epoxy resins; Derivatives of epoxy resins · CPC title
Thermosetting resins · CPC title
characterised by the additives used in the polymer mixture · CPC title
Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers · CPC title
Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers · CPC title
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- What does patent US9868833B2 cover?
- This invention relates to an additive for a thermoset resin matrix having a core and a reactive cross-linked thermoset coating. The reactive cross-linked thermoset coating is the reaction product of a thermoset resin and a curative in a dispersant.
- Who is the assignee on this patent?
- Hexcel Composites Ltd, Hexcel Composites Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08J5/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 16 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).