Methods for forming composite articles from tailorable polyimide resin systems using RTM and RI techniques
US8030437B2 · kind B2 · utility
1Cited by
2References
6Claims
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Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming a polyimide composite article utilizes a polyimide resin system including at least a first prepolymer component and a second prepolymer component. A preform structure is tackified with the first prepolymer component. Using resin infusion or resin transfer molding techniques, the tackified preform structure is contacted with the second prepolymer component. The polyimide resin system is cured under suitable cure conditions so that the first and second prepolymer components mix and react to produce the polyimide composite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.